AI voice agents, side by side
Each row is one vendor on one plan, and every cell is read from the vendor's own page for that plan. Click one to see the vendor's exact words, the plan it applies to and the date. No winner is marked. Say what you need and vendors that cannot meet it stay visible, with the reason.
The plan under each vendor's name is the one its row describes. Each vendor starts on its cheapest plan you can buy without a sales call that can bill past its included minutes, on the vendor's own pages; a pay-as-you-go plan counts. A cell marked On another plan shows what that plan states; it does not count for the row's plan.
| Price | Billing rules | Capacity | Getting started | Compliance | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| What that fee includes | How the AI model is charged | How a minute is billed | Free credit or trial | Sign up without sales | HIPAA agreement (BAA) | |||||||
| Bland AIPlan: StartMonthly bill for Bland AI | 8 of 11 | |||||||||||
| Cartesia Managed AgentsPlan: ProMonthly bill for Cartesia Managed Agents | 8 of 11 | |||||||||||
| ElevenLabs Agents (ElevenAgents)Plan: CreatorMonthly bill for ElevenLabs Agents (ElevenAgents) | 9 of 11 | |||||||||||
| LiveKit CloudPlan: ShipMonthly bill for LiveKit Cloud | 10 of 11 | |||||||||||
| Pipecat CloudPlan: Usage-basedMonthly bill for Pipecat Cloud | 8 of 11 | |||||||||||
| PolyAIPlan: Platform (pay as you go)Monthly bill for PolyAI | 10 of 11 | |||||||||||
| Retell AIPlan: Pay as you goMonthly bill for Retell AI | Also: | 11 of 11 | ||||||||||
| Smallest.ai AtomsPlan: Pay as you goMonthly bill for Smallest.ai Atoms | 8 of 11 | |||||||||||
| Synthflow AIPlan: EnterpriseMonthly bill for Synthflow AI | 5 of 11 | |||||||||||
| Telnyx Voice AI AgentsPlan: Pay as you goMonthly bill for Telnyx Voice AI Agents | plus | Also: · Outbound calls, across all connection types | 8 of 11 | |||||||||
| UltravoxPlan: Pay As You GoMonthly bill for Ultravox | 9 of 11 | |||||||||||
| VapiPlan: Usage onlyMonthly bill for Vapi | 10 of 11 | |||||||||||
"Published" is the share of these 11 facts a vendor states on its own pages for the plan named in its row. A low figure means a thin public record, not a weak product. "Not publicly listed" means we read the vendor's pricing, documentation and terms pages and did not find it for that plan; it does not mean the vendor lacks it.
What each vendor tells you before a sales call
Each vendor on the same plan as in the table. A lit dot means the vendor publishes it for that plan. A dashed ring means it does not. A half dot means the vendor's own pages disagree. Click any dot for the exact words.
Source for every vendor figure on this page (164)
- Bland AI, platform fee per minute: $0.14 per minute (Start. pay as you go. talk time; transfer time billed separately).
Talk Time Rate: $0.14/min
bland.ai/pricing Read 14 Nov 2026. - Bland AI, what that fee includes: AI model, speech-to-text, voice; phone unclear.
Bland's per-minute rate covers the LLM, STT, and TTS in one number, with no token charges and no model-provider pass-throughs. Telephony is billed separately, on your own carrier or Bland's at pass-through cost.
Also:One per-minute rate covers the language model, speech-to-text, text-to-speech, and telephony. There are no per-token charges, no per-feature surcharges, and no separate vendor invoices.
bland.ai Also:Per-minute pricing covers LLM, TTS, STT, and telephony in a single line item, with no per-token charges and no per-feature surcharges.
docs.bland.ai/llms.txt bland.ai/pricing Read 14 Nov 2026. - Bland AI, plan: Start: $0 platform fee, no card required (Start. pay as you go).
$0 platform fee. No card required.
bland.ai/pricing Read 14 Nov 2026. - Bland AI, how the AI model is charged: In the per-minute rate; no token charges.
Bland's per-minute rate covers the LLM, STT, and TTS in one number, with no token charges and no model-provider pass-throughs.
bland.ai/pricing Read 14 Nov 2026. - Bland AI, uS phone minutes: Not publicly listed. Read 14 Nov 2026.
- Bland AI, how a minute is billed: Per second of active call time.
Call Time: Prorated to the exact second. Only active call time is counted. | Per minute rate based on plan
docs.bland.ai/platform/billing Read 14 Nov 2026. - Bland AI, calls at once, included: 10 calls at once (Start).
10 concurrent calls
bland.ai/pricing Read 14 Nov 2026. - Bland AI, each extra call at once: Not publicly listed. Read 14 Nov 2026.
- Bland AI, free credit or trial: 2 credits and an inbound number; no card (Start).
Sign up on the Start plan and you get two credits plus an inbound number valued at $15/month, with no card required.
bland.ai/pricing Read 14 Nov 2026. - Bland AI, sign up without sales: Yes; Enterprise through sales (Start, Build).
Most teams deploy a first agent within a day on the self-serve plans.
bland.ai/pricing Read 14 Nov 2026. - Bland AI, hIPAA agreement (BAA): BAA on Enterprise; price custom (Enterprise).
BAA, SSO, data residency
bland.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, platform fee per minute: $0.03 per minute (Free, Pro, Startup and Scale (Enterprise: custom). LLM usage billed separately; Cartesia-provided phone numbers add $0.014 per minute).
Agents run at $0.03 per minute. Calls on a Cartesia phone number add $0.014 per minute. The rate is the same for every agent.
cartesia.ai/agents Read 14 Nov 2026. - Cartesia Managed Agents, what that fee includes: Not the AI model or phone minutes (Free, Pro, Startup, Scale. Agent minutes at the standard $0.03/minute rate).
These numbers do not include telephony or LLM usage.
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, monthly plan fee: $5 per month (Pro) (Pro. monthly).
Pro: $5 /mo
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, how the AI model is charged: Billed separately from call minutes (All plans).
LLM usage during calls: Billed separately
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, uS phone minutes: $0.014 per minute on a Cartesia number (All plans. US (Cartesia numbers are US only). Only for calls on a Cartesia-provided number; added to the $0.03 agent rate).
Telephony: $0.014 per minute when using a Cartesia-provided phone number
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, how a minute is billed: Not publicly listed. Read 14 Nov 2026.
- Cartesia Managed Agents, calls at once, included: Pro: 12 concurrent agent calls (Pro. Inbound, outbound and batch calls share this limit; separate from TTS and STT limits).
Concurrent calls: 8 | 12 | 20 | 60 | Custom
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, each extra call at once: Not publicly listed. Read 14 Nov 2026.
- Cartesia Managed Agents, free credit or trial: Free plan: $1 agent usage, 20K credits/mo (Free. monthly).
Free: $0 /mo; 20K credits / month; $1 prepaid agents / month
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, sign up without sales: Yes; sales for BAA, on-prem or high volume (Free, Pro, Startup, Scale).
Reach out to the Cartesia team if you're running high-volume production workloads (>50M credits); you need on-prem, VPC, or OEM deployment; you need a BAA, zero data retention, or other contractual compliance terms for healthcare, financial services, or regulated sectors; or you're in government, federal, or public sector procurement. For everything else — evaluation, prototyping, smaller production workloads — the self-serve plans on the pricing page will get you started.
cartesia.ai/sonic Read 14 Nov 2026. - Cartesia Managed Agents, hIPAA agreement (BAA): On the Enterprise plan; price not published (Enterprise. Enterprise pricing is custom ("Contact us")).
DPAs and BAAs for compliance
cartesia.ai/pricing Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), platform fee per minute: $0.08 per minute beyond included minutes (Free, Starter, Creator, Pro, Scale, Business. Call minutes beyond those included in the monthly plan; going past the quota needs prepaid Pay As You Go credits (or legacy usage-based billing)).
Additional call minutes cost $0.08 per minute (burst pricing $0.16 per minute, double the standard rate, when you exceed your concurrency limit), and text messages cost $0.003 each.
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), what that fee includes: Voice and speech-to-text included (Free, Starter, Creator, Pro, Scale, Business).
Included Features Text to Speech Speech to Text Realtime Configs Knowledge Bases RAG Telephony
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), monthly plan fee: Creator: $22 per month (first month $11) (Creator. monthly. First-month $11 offer shown on the plan card).
Creator: $22 per month, first month $11
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), how the AI model is charged: Passed through at provider rates, no markup.
Pass-through pricing: ElevenLabs passes through third-party LLM costs at the provider’s published rate, with no markup.
elevenlabs.io/docs/eleven-agents/customization/llm Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), uS phone minutes: No phone fee from ElevenLabs (Free, Starter, Creator, Pro, Scale, Business).
No. Telephony is included on every plan, and phone calls are billed at the same call-minute rate as any other channel, so ElevenLabs adds no telephony fee.
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), how a minute is billed: Not publicly listed. Read 14 Nov 2026.
- ElevenLabs Agents (ElevenAgents), calls at once, included: Creator: 10 concurrent calls (Creator).
Included call minutes and concurrent calls per plan: Free 15 minutes / 4 concurrent calls; Starter 75 minutes / 6; Creator 275 minutes / 10; Pro 1,238 minutes / 20; Scale 3,738 minutes / 30; Business 12,375 minutes / 40.
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), each extra call at once: Burst calls: $0.16 per minute (Free, Starter, Creator, Pro, Scale, Business. Burst pricing enabled on the agent; up to 3 times the plan limit or 300, whichever is lower).
Additional call minutes cost $0.08 per minute (burst pricing $0.16 per minute, double the standard rate, when you exceed your concurrency limit), and text messages cost $0.003 each.
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), free credit or trial: Free plan: 15 call minutes included (Free).
15 minutes of calls included
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), sign up without sales: Yes; card, Apple Pay or Google Pay (Free, Starter, Creator, Pro, Scale, Business).
We accept Credit Card, Apple Pay, and Google Pay. Subscriptions are billed on a monthly or yearly basis starting from the day you subscribe.
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), hIPAA agreement (BAA): Enterprise plan only; price not published (Enterprise).
Execution of a BAA, as may be required by HIPAA, is only available for Enterprise tier subscriptions.
elevenlabs.io/docs/eleven-agents/legal/hipaa Read 14 Nov 2026. - LiveKit Cloud, platform fee per minute: $0.01 per minute after included minutes (Ship, Scale. Beyond the included agent session minutes (5,000 on Ship, 50,000 on Scale); Enterprise custom).
Agent session minutes Time spent in a session by an agent deployed on LiveKit Cloud 1,000 minutes included 5,000 minutes included then $0.01 per min 50,000 minutes included then $0.01 per min Custom
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, what that fee includes: Agent time only; AI models and phone extra (All plans. Pricing calculator total cost formula).
`agent_session + (phone ? telephony : webrtc) + llm + (realtime_llm ? 0 : stt) + (realtime_llm ? 0 : tts) + (observability_enabled ? observability : 0)`
livekit.com/pricing.md Read 14 Nov 2026. - LiveKit Cloud, monthly plan fee: Ship: from $50 per month (Ship. monthly).
Ship For shipping your project to real users. Start building STARTING AT $50/mo
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, how the AI model is charged: Billed per token through LiveKit Inference (All plans).
LiveKit Inference credits are billed by model type: LLM by tokens, STT by duration, TTS by characters, turn detection and interruption by request, and realtime models in each provider's own unit, shown per model.
livekit.com/pricing/inference Read 14 Nov 2026. - LiveKit Cloud, uS phone minutes: $0.01 per inbound minute (US local number) (Ship, Scale. US. Inbound to a LiveKit US local number; 50 (Build), 100 (Ship) or 1,000 (Scale) minutes included).
US local inbound minutes Inbound minutes to a US local number 50 minutes included 100 minutes included then $0.01 per min 1,000 minutes included then $0.01 per min Custom
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, how a minute is billed: Per second, 10-second minimum per session (All plans).
Agents deployed to LiveKit Cloud are metered by agent session time, in increments of 1 second with a 10-second minimum per session. This reflects the amount of time the agent is actively connected to a WebRTC or SIP-based session.
docs.livekit.io/deploy/admin/billing Read 14 Nov 2026. - LiveKit Cloud, calls at once, included: Ship: 20 concurrent agent sessions (Ship).
Concurrent agent sessions Number of concurrent sessions across all agents deployed on LiveKit Cloud 5 20 Up to 600 Starts at 50, request more via dashboard Custom
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, each extra call at once: Not publicly listed (All plans). Read 14 Nov 2026.
- LiveKit Cloud, free credit or trial: Ship: $5 inference credits, ~100 minutes (Ship).
LiveKit Inference credits Call popular models with LiveKit's inference service $2.50 in credits ~50 minutes, based on model prices $5 in credits ~100 minutes, then billed based on model prices $50 in credits ~1,000 minutes, then billed based on discounted model prices Custom
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, sign up without sales: Ship: sign up with "Start building" (Ship).
Ship For shipping your project to real users. Start building STARTING AT $50/mo
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, hIPAA agreement (BAA): Build and Ship: no HIPAA BAA (Build, Ship).
| HIPAA compliance | No | No | Yes | Yes |
livekit.com/pricing.md Read 14 Nov 2026. - Pipecat Cloud, platform fee per minute: $0.01 per active minute (agent-1x) (agent-1x profile (Best for voice agents), Daily-hosted regions. usage-based. Active session minutes; hosting only, speech, AI model and voice are billed by your own providers).
agent-1x Best for voice agents 0.5 vCPU, 1 GB Memory Active $0.01/min
daily.co/pricing/pipecat-cloud Read 14 Nov 2026. - Pipecat Cloud, what that fee includes: Hosting only; not speech, AI model or voice (Pipecat Cloud, Daily-hosted regions. Outside Enterprise Integrated Billing (bundled inference billing at enterprise scale, by email)).
Note: This calculator estimates total spend from Pipecat Cloud (agent hosting, transport, and telephony) and external services not billed via Pipecat Cloud (LLM, STT, and TTS).
daily.co/pricing/pipecat-cloud Read 14 Nov 2026. - Pipecat Cloud, monthly plan fee: Not publicly listed (Pipecat Cloud). Read 14 Nov 2026.
- Pipecat Cloud, how the AI model is charged: Billed by your own AI model provider (Pipecat Cloud. Outside Enterprise Integrated Billing).
Bring your own provider Connect directly with 80+ service providers for LLM, STT, and TTS including Anthropic, Cartesia, Deepgram, ElevenLabs, Google, OpenAI, and more. See full list here. Billed to provider
daily.co/pricing/pipecat-cloud Read 14 Nov 2026. - Pipecat Cloud, uS phone minutes: $0.018 per minute (Daily PSTN) (Pipecat Cloud. Daily PSTN dial-in and dial-out, SIP included; the page does not say which countries the rate covers).
Daily PSTN Dial-in/Dial-out Integrated PSTN transport for voice agents (SIP included) $0.018 per minute
daily.co/pricing/pipecat-cloud Read 14 Nov 2026. - Pipecat Cloud, how a minute is billed: Measured to the second, billed in minutes (Pipecat Cloud. Active and reserved session time).
Both active and reserved session time is measured to the second and billed in minutes.
docs.pipecat.ai/pipecat-cloud/fundamentals/scaling Read 14 Nov 2026. - Pipecat Cloud, calls at once, included: 50 per deployment by default; more on request (Pipecat Cloud, Daily-hosted regions. Default instance pool capacity; raised through the concurrency increase request form).
The default instance pool capacity is 50 active sessions per deployment.
Also:Pipecat Cloud supports unlimited concurrency. (Your account defaults to 100, in order to help developers avoid running up costs unintentionally. We are glad to increase that concurrency.)
docs.google.com/forms/d/e/1FAIpQLSffPYOsJQ_FWun5wh7dHCLbbaSrEjiRCPnfdBe_KefdGWaDqQ/viewform Also:The per-organization replica limit that applies to Daily-hosted regions does not apply to a self-hosted region: max_agents is bounded only by your cluster’s capacity.
docs.pipecat.ai/pipecat-cloud/enterprise/sizing docs.pipecat.ai/pipecat-cloud/fundamentals/active-sessions Read 14 Nov 2026. - Pipecat Cloud, each extra call at once: Not publicly listed (Pipecat Cloud). Read 14 Nov 2026.
- Pipecat Cloud, free credit or trial: Trial codes exist; no amount published (Pipecat Cloud. Credits come with a redeemed trial code; the same reference says a code may carry none).
org.trial_started: A trial code is redeemed for the first time. Not sent for a top-up over an exhausted trial.
docs.pipecat.ai/pipecat-cloud/guides/webhook-events Read 14 Nov 2026. - Pipecat Cloud, sign up without sales: Yes: sign up online and deploy (Pipecat Cloud (Daily-hosted regions)).
Multi-tenant and fully managed. Your agents run in Daily-hosted regions and Daily operates everything. Sign up and deploy in minutes.
docs.pipecat.ai/pipecat-cloud/introduction Read 14 Nov 2026. - Pipecat Cloud, hIPAA agreement (BAA): Daily can sign a BAA covering Pipecat Cloud (Not tied to a named plan. HIPAA controls turned on and the BAA signed only after you contact help@daily.co; the page gives no price).
Daily can sign a Business Associate Agreement covering: Pipecat Cloud Daily WebRTC infrastructure Daily transcription services A single BAA covers all these services.
docs.pipecat.ai/pipecat-cloud/security/hipaa Read 14 Nov 2026. - PolyAI, platform fee per minute: $0.05 per minute, plus model and voice (Platform. pay as you go. the platform part of the "9.5c+" per minute headline; Dialog-RSN-1 (3c) and standard voice (1.5c) are listed beside it).
Platform 5c, Dialog-RSN-1 3c, standard voice 1.5c
poly.ai/pricing Read 14 Nov 2026. - PolyAI, what that fee includes: $0.095+: platform, model and standard voice (Platform. pay as you go. "9.5c+" per minute headline = Platform 5c + Dialog-RSN-1 3c + standard voice 1.5c).
9.5c+ PER MINUTE Start building Platform 5c, Dialog-RSN-1 3c, standard voice 1.5c
poly.ai/pricing Read 14 Nov 2026. - PolyAI, plan: Platform: pay as you go, $0.095+ per minute (Platform. pay as you go).
Platform RECOMMENDED The full agent builder, billed by the minute. 9.5c+ PER MINUTE
poly.ai/pricing Read 14 Nov 2026. - PolyAI, how the AI model is charged: $0.03 per minute for Dialog-RSN-1 (Platform. pay as you go).
Platform 5c, Dialog-RSN-1 3c, standard voice 1.5c
poly.ai/pricing Read 14 Nov 2026. - PolyAI, uS phone minutes: $0.015 per minute on a PolyAI number (Any Agent Studio account (the docs name no plan). United Kingdom, United States, Canada, Australia, Ireland. number bought through PolyAI, which buys it on Twilio).
You can buy a phone number through PolyAI without setting up a telephony provider of your own. PolyAI buys the number on Twilio, manages it for you, and routes it to your agent as soon as the purchase finishes. Usage is billed through PolyAI at 1.5¢ per minute.
docs.poly.ai/voice-channel/numbers/how-to-buy-number Read 14 Nov 2026. - PolyAI, how a minute is billed: Billed on connected time (Platform and Model API (Developer tab). pay as you go).
Add your card and pay as you go, billed on connected time.
poly.ai/pricing Read 14 Nov 2026. - PolyAI, calls at once, included: 10 calls at once (Platform. pay as you go).
10 concurrent calls included
poly.ai/pricing Read 14 Nov 2026. - PolyAI, each extra call at once: Not publicly listed (All offers). Read 14 Nov 2026.
- PolyAI, free credit or trial: $20 of free credit to get started (Platform. pay as you go).
$20 of free credit to get started
poly.ai/pricing Read 14 Nov 2026. - PolyAI, sign up without sales: Self-serve sign-up at studio.poly.ai (Essentials, Plus, Scale, Platform).
Sign up self-serve at studio.poly.ai, build your first agent free, and deploy it in minutes.
docs.poly.ai/get-started/quickstart Read 14 Nov 2026. - PolyAI, hIPAA agreement (BAA): Enterprise only; not on Essentials to Scale (Enterprise (not Essentials, Plus or Scale)).
Every plan runs on SOC 2 and ISO 27001 certified infrastructure. Enterprise adds HIPAA with a BAA, SSO, PCI card capture, data storage in your region and an uptime SLA.
poly.ai/pricing Read 14 Nov 2026. - Retell AI, platform fee per minute: $0.055 per minute (Retell Voice Infra) (Pay as you go. Voice (call) agents; listed as "Retell Voice Infra" under "Conversation Voice Engine" in the Default tab).
Retell Voice Infra: $0.055/minute
retellai.com/pricing Read 14 Nov 2026. - Retell AI, what that fee includes: The voice engine; not the AI model or phone (Pay as you go).
Voice infra: Retell’s conversation voice engine. This is the flat per-minute platform cost of running the real-time call, separate from LLM and telephony costs.
docs.retellai.com/accounts/billing Read 14 Nov 2026. - Retell AI, monthly plan fee: No monthly plan fee; pay as you go from $0 (Pay as you go).
Most voice AI platforms require annual contracts before you write a single line of code. Retell starts at $0, pay only for what you use.
retellai.com/pricing Read 14 Nov 2026. - Retell AI, how the AI model is charged: Charged per minute, by model (Pay as you go).
LLM: the per-minute cost of the language model your agent uses, which varies by model.
docs.retellai.com/accounts/billing Read 14 Nov 2026. - Retell AI, uS phone minutes: $0.015 per minute (Retell Twilio number) (Pay as you go. United States. Retell-provided Twilio number, not toll-free).
United States (Twilio): $0.015/min
retellai.com/pricing Read 14 Nov 2026. - Retell AI, how a minute is billed: Per second; no rounding up per call (Pay as you go. Seconds are totalled over the billing cycle and charged as accumulated minutes).
Each call is tracked to the nearest second. At the end of each billing cycle, we charge based on your total accumulated minutes. No rounding up per call, no inflated bills.
retellai.com/pricing Read 14 Nov 2026. - Retell AI, calls at once, included: 20 calls at once included (Pay as you go).
Every account includes 20 concurrent calls for free.
retellai.com/pricing Read 14 Nov 2026. - Retell AI, each extra call at once: $8 per extra concurrent call per month (Pay as you go. monthly. Beyond the 20 included concurrent calls).
Additional capacity is $8 per concurrent call per month.
retellai.com/pricing Read 14 Nov 2026. - Retell AI, free credit or trial: $10 in free credits (Pay as you go).
Go live in minutes with $10 in free credits. Full platform access, no commitments. Just build, test, and pay as you scale.
retellai.com/pricing Read 14 Nov 2026. - Retell AI, sign up without sales: Yes: sign up and go live in minutes (Pay as you go).
Go from signup to live agent in minutes. Pre-built templates and simulation testing get you to production fast.
retellai.com/pricing Read 14 Nov 2026. - Retell AI, hIPAA agreement (BAA): Yes, self-signed online (The compliance page names no plan; the pricing page comparison table shows a check mark for "HIPAA / BAA" under both Pay-as-you-go and Enterprise).
Retell’s Business Associate Agreement (BAA) and Data Processing Addendum (DPA, including EU Standard Contractual Clauses) are available for self-signing at click-agreements.retellai.com.
docs.retellai.com/general/compliance Read 14 Nov 2026. - Smallest.ai Atoms, platform fee per minute: $0.01 per minute hosting fee (Pay as you go. pay as you go. Smallest's own flat hosting fee; the speech-to-text, AI model and voice layers pass through at cost and telephony is a further layer of the per-call price).
Smallest Hosting Fees: $0.01/min, Flat Rate
smallest.ai/pricing/agents Read 14 Nov 2026. - Smallest.ai Atoms, what that fee includes: Pricing page FAQ: speech-to-text, the AI model and the voice are not billed separately from the per-minute rate (Pay as you go. The per-minute rate named in the FAQ answer).
No. Transcription (Pulse), the language model, and voice (Lightning) all run inside the per-minute rate. There's no separate STT, LLM, or TTS charge stacked on top unlike bring-your-own-key platforms.
Also:Cascading stacks (Hosting + STT + LLM + TTS + Telephony) bill each layer separately; speech-to-speech stacks (Hosting + S2S + Telephony) bill the S2S layer as one line.
docs.smallest.ai/overview/administration/subscription-plans smallest.ai/pricing/agents Read 14 Nov 2026. - Smallest.ai Atoms, monthly plan fee: Not publicly listed. Read 14 Nov 2026.
- Smallest.ai Atoms, how the AI model is charged: At cost, at a per-minute rate per model (Pay as you go. Cascading architecture (LLM layer)).
Per-minute rates for each layer in the stack. Model prices pass through at cost; Smallest adds the Hosting fee above.
docs.smallest.ai/overview/administration/subscription-plans Read 14 Nov 2026. - Smallest.ai Atoms, uS phone minutes: Not publicly listed. Read 14 Nov 2026.
- Smallest.ai Atoms, how a minute is billed: Connection time, from call start to end.
Call length is measured by connection duration from when the call starts to when it ends or the window closes. This is why a call may bill for slightly longer than the conversation itself.
smallest.ai/pricing/agents Read 14 Nov 2026. - Smallest.ai Atoms, calls at once, included: 20 calls at once (Pay as you go) (Pay as you go. One pool shared by webcall, chat, outbound and inbound calls across all agents).
Concurrency Included: 20 Included
smallest.ai/pricing/agents Read 14 Nov 2026. - Smallest.ai Atoms, each extra call at once: Not available on Pay as you go (Pay as you go).
Additional Concurrency: No
smallest.ai/pricing/agents Read 14 Nov 2026. - Smallest.ai Atoms, free credit or trial: $10 in free credits to start (Pay as you go).
Start with $10 in free credits, full access, and a pricing model that grows with you.
smallest.ai/pricing/agents Read 14 Nov 2026. - Smallest.ai Atoms, sign up without sales: Yes: sign up directly (Pay as you go) (Pay as you go).
Getting started: Sign up
docs.smallest.ai/overview/administration/subscription-plans Read 14 Nov 2026. - Smallest.ai Atoms, hIPAA agreement (BAA): Enterprise plans, with Zero Data Retention (Enterprise. Zero Data Retention enabled).
Yes, on Enterprise plans with Zero Data Retention enabled. Contact sales@smallest.ai.
docs.smallest.ai/voice-agents/resources/faq Read 14 Nov 2026. - Synthflow AI, platform fee per minute: No per-minute rate; annual agreement (Enterprise. annual agreement).
Synthflow is sold as an annual enterprise agreement, scoped to your call volume, phone system, integrations, security needs and launch support. It has no free plan or trial and no rate by the minute.
synthflow.ai/pricing Read 14 Nov 2026. - Synthflow AI, what that fee includes: Not stated for speech, AI model or voice (Enterprise. annual agreement. the agreement covers call concurrency and routing, telephony, integrations, security and procurement, support terms and, where included, launch support).
The agreement covers call concurrency and routing, telephony, integrations, security and procurement (MSA and DPA support, an enterprise security review), support terms and, where included, launch support.
synthflow.ai/facts Read 14 Nov 2026. - Synthflow AI, monthly plan fee: No list price; priced after a scoping call (Enterprise. annual agreement).
Synthflow is sold as an annual enterprise agreement, scoped to your call volume, phone system, integrations, security needs and launch support. It publishes no list price: its team prices each deployment after a scoping call.
synthflow.ai/facts Read 14 Nov 2026. - Synthflow AI, how the AI model is charged: Not publicly listed. Read 14 Nov 2026.
- Synthflow AI, uS phone minutes: Not publicly listed. Read 14 Nov 2026.
- Synthflow AI, how a minute is billed: Per second, partial seconds rounded up (measured from when the caller and the AI agent connect until the call ends).
Phone calls are measured per second, starting when the human and the AI agent connect and ending when the call terminates. Partial seconds are rounded up to the nearest second.
docs.synthflow.ai/usage Read 14 Nov 2026. - Synthflow AI, calls at once, included: Not publicly listed (Enterprise). Read 14 Nov 2026.
- Synthflow AI, each extra call at once: Not publicly listed (Enterprise). Read 14 Nov 2026.
- Synthflow AI, free credit or trial: No free plan or trial (Enterprise. annual agreement).
No. Synthflow has no free plan or trial and no rate by the minute.
synthflow.ai/pricing Read 14 Nov 2026. - Synthflow AI, sign up without sales: Enterprise contract for every new deployment.
Synthflow is built for mid-market and enterprise teams deploying AI voice agents for customer calls, and every new deployment starts on an Enterprise contract.
Also:Synthflow support has two paths: one for self-serve plans and one for Enterprise. Each has its own ticket form, so start with your plan.
docs.synthflow.ai/getting-support Also:Version 1.0 | Last updated May 13, 2026 | Applicable to: Self-serve subscribers via synthflow.ai
docs.synthflow.ai/terms-conditions Also:In some cases, new accounts may be reviewed before full workspace access is enabled. While your account is being reviewed, you may see a holding page confirming that your access request has been received.
docs.synthflow.ai/account-access-login synthflow.ai/pricing Read 14 Nov 2026. - Synthflow AI, hIPAA agreement (BAA): Yes, for customers using the HIPAA Setting (customers using the HIPAA Setting to process protected health information; executed at contract signing).
The BAA is executed between Synthflow and Customer at contract signing for customers using the HIPAA Setting to process Protected Health Information (PHI).
docs.synthflow.ai/baa Read 14 Nov 2026. - Telnyx Voice AI Agents, platform fee per minute: $0.05 per minute (voice engine) (All plans (Pay as you go, Growth, Enterprise). Voice engine only; LLM tokens and telephony are billed separately on this page).
The Voice AI voice engine bundles orchestration, hosted STT, and hosted TTS at $0.05/min, with LLM tokens at the rates below.
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, what that fee includes: Speech-to-text and voice; not AI model or phone (All plans (Pay as you go, Growth, Enterprise). Voice engine: orchestration, Telnyx-hosted speech-to-text (Deepgram and Telnyx STT are named) and hosted voices (Telnyx Ultra, Natural, NaturalHD, Qwen3TTS, Inworld, Rime, Resemble, Murf); LLM tokens and telephony are add-ons; MiniMax voices are billed per character on top; ElevenLabs needs your own key).
Orchestration, speech-to-text, and text-to-speech in one rate. LLM tokens at our own GPU prices, telephony at carrier cost.
Also:| Voice Ai Agent Usd Per Min | $0.05/min | flat | Includes SIP + STT + LLM inference + TTS on single platform |
telnyx.com/pricing.md Also:- **Voice AI Agent** — bundled SIP + STT + LLM + TTS at $0.05/min
telnyx.com/llms.txt telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, monthly plan fee: $0 (Pay as you go) (Pay as you go. pay as you go).
PAY AS YOU GO: $0
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, how the AI model is charged: Per token (models on Telnyx GPUs) (All plans (Pay as you go, Growth, Enterprise). Models on Telnyx GPUs, at the priority-tier inference rates; billed on top of the $0.05 voice engine).
LLM usage is billed per token at the rates in the tables above, not per minute. Models on Telnyx GPUs are billed at priority-tier inference rates (the Priority tab on /pricing/inference-api).
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, uS phone minutes: From $0.0032 per minute, US inbound (US. pay as you go. Local inbound, SIP trunking "from" rate; a $0.002 per minute Voice API platform fee is added).
Telephony is billed at carrier cost on Telnyx's own network: SIP trunking from $0.0032/min inbound and $0.005/min outbound in the US, plus a $0.002/min Voice API platform fee.
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, how a minute is billed: Engine: rounded up to the minute, per call (All plans (Pay as you go, Growth, Enterprise). Voice engine charge, on connected call duration).
Each call is billed in 60-second increments: the connected duration of each call is rounded up to the next full minute, applied per call.
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, calls at once, included: 500 calls at once (Pay as you go) (Pay as you go. Plan limit on the pricing page; the page does not say inbound or outbound).
Pay as you go includes 500 concurrent calls, 100 API requests per second, and 50 SMS per second.
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, each extra call at once: Not publicly listed. Read 14 Nov 2026.
- Telnyx Voice AI Agents, free credit or trial: $5 testing credit (Trial account) (Trial account tier).
USD $5 in testing credit is provided.
developers.telnyx.com/docs/account-setup/levels-and-capabilities/trial Read 14 Nov 2026. - Telnyx Voice AI Agents, sign up without sales: Yes: sign up with a card on file (Pay as you go).
Standard rates. Live in minutes, card on file.
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, hIPAA agreement (BAA): BAA offered; who qualifies differs by page (All plans (Pay as you go, Growth, Enterprise)).
HIPAA and a BAA are available on every plan, alongside SOC 2 Type II, PCI, GDPR and ISO 27001, under one DPA.
Also:Telnyx offers a BAA to customers who meet its commercial thresholds and who architect their use of the platform in line with Architecting HIPAA on Telnyx.
support.telnyx.com/en/articles/3347891-hipaa-baas-and-the-conduit-exception Also:Telnyx signs a BAA with customers who meet its commercial thresholds, which it does not publish, through sales rather than self-serve.
telnyx.com/ai-agents/soc-2-compliance telnyx.com/solutions/contact-center Read 14 Nov 2026. - Ultravox, platform fee per minute: $0.05 per minute after 30 free minutes (Pay As You Go. pay as you go. after the first 30 free minutes).
First 30 minutes free, $0.05/min after that.
ultravox.ai/pricing Read 14 Nov 2026. - Ultravox, what that fee includes: Includes the voice (text-to-speech) (Pay As You Go).
5¢ per minute (including TTS) for up to 5 concurrent calls.
ultravox.ai Read 14 Nov 2026. - Ultravox, plan: Pay As You Go: $0 per month, pay as you go with some hard limits (Pay As You Go. pay as you go).
Perfect for just starting out and experimenting. Pay as you go with some hard limits. $0 /month
ultravox.ai/pricing Read 14 Nov 2026. - Ultravox, how the AI model is charged: Included in the $0.05 per minute (main conversation; background threads are billed per token).
Same Great Price → Stays at our standard $0.05 per minute rate. Better model, same price.
docs.ultravox.ai/changelog/news Read 14 Nov 2026. - Ultravox, uS phone minutes: Not publicly listed. Read 14 Nov 2026.
- Ultravox, how a minute is billed: Per 6 seconds: $0.005 each (call minutes at the standard $0.05 per minute rate).
Calls are rounded to the nearest “deciminute” (every six seconds). This means that we effectively bill our standard $0.05 per minute rate as $0.005 for every six seconds of call time.
docs.ultravox.ai/gettingstarted/faq Read 14 Nov 2026. - Ultravox, calls at once, included: Up to 5 calls at once (Pay As You Go).
Up to 5 concurrent calls
ultravox.ai/pricing Read 14 Nov 2026. - Ultravox, each extra call at once: Not publicly listed. Read 14 Nov 2026.
- Ultravox, free credit or trial: 30 free minutes of calls on a new account (Free account).
You can sign-up for a free account that comes with 30 free minutes for creating calls.
docs.ultravox.ai/api-reference/introduction Read 14 Nov 2026. - Ultravox, sign up without sales: Yes: sign up online in the console (Pay As You Go and Pro).
Don’t have an account? Sign up
app.ultravox.ai Read 14 Nov 2026. - Ultravox, hIPAA agreement (BAA): BAA on an Enterprise plan (Enterprise).
We sign Business Associate Agreements (BAAs) for customers with HIPAA needs, on an Enterprise plan. You can also remove call data after each call (see below). Contact support@inworld.ai to discuss your requirements.
docs.ultravox.ai/gettingstarted/faq Read 14 Nov 2026. - Vapi, platform fee per minute: $0.05 per minute hosting fee (No Success Package (Usage only). pre-paid credits. Docs state usage-based billing stays active on Core, Pro and Premier).
Pre-paid, $0.05/min Vapi hosting.
vapi.ai/pricing Read 14 Nov 2026. - Vapi, what that fee includes: None: speech, model, voice, transport extra (All packages).
Four components: speech-to-text, the language model, text-to-speech, and transport. Each is billed at the provider's listed price with no markup. Vapi's $0.05/min hosting fee is added on top.
vapi.ai/pricing Read 14 Nov 2026. - Vapi, plan: Usage only: per-minute hosting fee plus model, voice, transcriber and telephony costs (Usage only (No Success Package)).
With Usage only, you pay a per-minute hosting fee, plus the model, voice, transcriber, and telephony costs for each call.
docs.vapi.ai/billing/pricing-and-success-packages Read 14 Nov 2026. - Vapi, how the AI model is charged: Passed through at cost (All packages).
Models pass-through at cost
vapi.ai/pricing Read 14 Nov 2026. - Vapi, uS phone minutes: Free on Vapi numbers (Vapi Telephony / SIP) (Vapi Telephony / SIP (free Vapi numbers). Transport Fee in the pricing-page estimate; 1 included Vapi phone number without a Success Package, 5 on Core, 10 on Pro; calls still pay the hosting fee and model costs).
Transport Fee Vapi Telephony / SIP $0
vapi.ai/pricing Read 14 Nov 2026. - Vapi, how a minute is billed: Not publicly listed. Read 14 Nov 2026.
- Vapi, calls at once, included: 4 calls at once (No Success Package (Usage only). Per subscription, shared by all its organizations).
4 concurrent calls
vapi.ai/pricing Read 14 Nov 2026. - Vapi, each extra call at once: $10 per extra call line per month (Any package, including Usage only. monthly, charged to credits on the first day of each month).
Additional concurrency: $10 per concurrent call line per month.
vapi.ai/pricing Read 14 Nov 2026. - Vapi, free credit or trial: $5 free credits (No Success Package (Usage only)).
$5 free credits to get you started
vapi.ai/pricing Read 14 Nov 2026. - Vapi, sign up without sales: Yes: start free and pay per minute (No Success Package (Usage only)).
Get started for free, and then pay only for the minutes that run
vapi.ai/pricing Read 14 Nov 2026. - Vapi, hIPAA agreement (BAA): Yes, as a $2,000 per month add-on (Any package, including Usage only. monthly. Per organization).
HIPAA-eligible data handling is a $2,000/month add-on per organization and comes with a standard DPA and BAA.
vapi.ai/pricing Read 14 Nov 2026. - Bland AI, monthly plan fee: $299 per month (Build) (Build. monthly. platform fee, per-minute usage billed on top).
$299/month platform fee
bland.ai/pricing Read 14 Nov 2026. - Bland AI, plan: Enterprise: custom price, contracted to volume (Enterprise).
Contracted to your volume.
bland.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, monthly plan fee: $0 per month (Free) (Free. monthly).
Free: $0 /mo
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, monthly plan fee: $49 per month (Startup) (Startup. monthly).
Startup: $49 /mo
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, monthly plan fee: $299 per month (Scale) (Scale. monthly).
Scale: $299 /mo
cartesia.ai/pricing Read 14 Nov 2026. - Cartesia Managed Agents, plan: Enterprise: custom price, custom credits and agent usage, volume pricing (Enterprise).
Enterprise: Custom; Custom credits & agent usage; Volume pricing
cartesia.ai/pricing Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), monthly plan fee: Free: $0 per month (Free. monthly).
Free: $0 /mo
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), monthly plan fee: Starter: $6 per month (first month $1) (Starter. monthly. First-month $1 offer marked "Until Dec 1").
Starter: $6 per month, first month $1
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), monthly plan fee: Pro: $99 per month (Pro. monthly).
Pro: $99 per month
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), monthly plan fee: Scale: $299 per month (Scale. monthly).
Scale: $299 per month
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), monthly plan fee: Business: $990 per month (Business. monthly).
Business: $990 per month
elevenlabs.io/pricing/agents Read 14 Nov 2026. - ElevenLabs Agents (ElevenAgents), plan: Enterprise: custom pricing (Enterprise).
Enterprise: Custom pricing
elevenlabs.io/pricing/agents Read 14 Nov 2026. - LiveKit Cloud, plan: Build: $0 per month, no credit card required (Build. monthly).
Build Everything you need to start a project. Start for free NO CREDIT CARD REQUIRED $0/mo
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, monthly plan fee: Scale: from $500 per month (Scale. monthly).
Scale For scaling applications and global reach. Start building STARTING AT $500/mo
livekit.com/pricing Read 14 Nov 2026. - LiveKit Cloud, plan: Enterprise: custom pricing through sales (Enterprise).
Enterprise For teams interested in the white-glove treatment. Contact sales Custom
livekit.com/pricing Read 14 Nov 2026. - Pipecat Cloud, plan: Pipecat Enterprise (self-hosted regions): billed under an enterprise agreement (Pipecat Enterprise. Agents run in a Kubernetes cluster you operate).
Pipecat Enterprise is billed under your enterprise agreement; agent-minutes in self-hosted regions are not metered by agent profile.
docs.pipecat.ai/pipecat-cloud/introduction Read 14 Nov 2026. - PolyAI, monthly plan fee: $49 per month (Essentials. monthly).
PRICE $49 per month $199 per month $299 per location per month Custom, invoiced
poly.ai/pricing Read 14 Nov 2026. - PolyAI, monthly plan fee: $199 per month (Plus. monthly).
PRICE $49 per month $199 per month $299 per location per month Custom, invoiced
poly.ai/pricing Read 14 Nov 2026. - PolyAI, monthly plan fee: $299 per location per month (Scale. monthly. 1 to 9 locations).
Scale is $299 per location per month for 1 to 9 locations. Each location includes 1,500 minutes, pooled across all of your locations, and handles up to 10 calls at once.
poly.ai/pricing Read 14 Nov 2026. - PolyAI, plan: Enterprise: custom price; minutes and concurrency set by volume (Enterprise. invoiced contract).
Contact centers who need greater customization and dedicated support. Custom
poly.ai/pricing Read 14 Nov 2026. - Retell AI, plan: Enterprise: custom pricing (Enterprise).
Price: Custom Pricing
retellai.com/pricing Read 14 Nov 2026. - Smallest.ai Atoms, plan: Enterprise: tailored pricing through sales (Enterprise).
Tailored pricing for teams operating at scale.
smallest.ai/pricing/agents Read 14 Nov 2026. - Telnyx Voice AI Agents, minimum commitment: $1,000 per month minimum spend (Starter) (Starter. monthly minimum spend, quarterly billing).
Starter: includes Managed Accounts with a $1,000 monthly minimum spend and quarterly billing (8% discount shown in the portal).
support.telnyx.com/en/articles/4951492-managed-accounts Read 14 Nov 2026. - Telnyx Voice AI Agents, minimum commitment: $2,000 per month minimum spend (Growth) (Growth. monthly minimum spend).
Growth is a $2,000 monthly minimum spend commitment on your account, and its 15% discount applies to the Voice, Messaging and Numbers lines of your bill: the telephony under each call, the numbers you hold, and any SMS your agent sends.
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, minimum commitment: $5,000 per month minimum spend (Enterprise) (Enterprise. monthly minimum spend).
ENTERPRISE: $5,000 / mo
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Ultravox, monthly plan fee: Pro: $100 per month when billed yearly (Pro. annual (billed yearly)).
$100/month *when billed yearly
ultravox.ai Read 14 Nov 2026. - Ultravox, plan: Enterprise: custom plan and pricing (Enterprise).
Designed for massive scale, we'll work with you to outline a plan that meets your needs. Custom
ultravox.ai/pricing Read 14 Nov 2026. - Vapi, monthly plan fee: Core: $29 per month (Core. monthly, pre-paid, auto-renew. Added on top of usage-based billing).
Core For builders & early teams $29 / month
vapi.ai/pricing Read 14 Nov 2026. - Vapi, plan: Premier: custom pricing and terms through sales (Premier).
Premier has custom pricing and terms, set with our sales team.
docs.vapi.ai/billing/manage-packages-and-add-ons Read 14 Nov 2026. - Retell AI, hIPAA agreement (BAA): No fee to sign the BAA.
There is no additional fee to sign these agreements.
docs.retellai.com/general/compliance Read 14 Nov 2026. - Telnyx Voice AI Agents, uS phone minutes: $0.002 per minute Voice API fee (US. pay as you go. Added to SIP trunking on each call).
Telephony is billed at carrier cost on Telnyx's own network: SIP trunking from $0.0032/min inbound and $0.005/min outbound in the US, plus a $0.002/min Voice API platform fee.
telnyx.com/pricing/voice-ai-agents Read 14 Nov 2026. - Telnyx Voice AI Agents, calls at once, included: 5 outbound calls at once (Paid account tier) (Paid account tier. Outbound calls, across all connection types).
Limited to 5 concurrent outbound calls across all connection types.
developers.telnyx.com/docs/account-setup/levels-and-capabilities/paid Read 14 Nov 2026.