Calculator · Checked Oct 27, 2026
AI voice agent cost calculator: monthly cost by platform
Compare monthly cost by platform on one stack. The worked example sits below the tool.
Monthly volume
Cheapest at 1,000 min/mo
Deepgram Voice Agent API
$84.65 /mo
$0.0847 /min
Line items
Voice Agent API, Standard tier $75.00
Telephony: own Twilio, inbound local $8.50
Twilio number $1.15
Source: deepgram.com · Oct 27, 2026; twilio.com · Oct 27, 2026. Full pricing
Line items
Voice infra $55.00
LLM (GPT 4.1 mini) $12.80
TTS (Retell platform voices) $15.00
Telephony (Retell Twilio, US) $15.00
Phone number $2.00
Extra concurrency (20 included) $0.00
Source: retellai.com · Oct 27, 2026. Full pricing
Line items
Speech-to-speech, Gemini 3.1 flash live (all-in AI) $100.00
Phone (LC Phone): not published, $0 shown $0.00
LC Phone is not published on the AI pricing page, so phone is shown as $0 and the total is the AI portion only.
Source: help.gohighlevel.com · Oct 27, 2026 (1 lines not published). Full pricing
Line items
Creator plan fee (275 min incl.) $22.00
Additional minutes $58.00
LLM (stand-in: Retell GPT 4.1 mini rate) Assumption $12.80
Telephony: own Twilio, inbound local $8.50
Twilio number $1.15
Source: elevenlabs.io · Oct 27, 2026; retellai.com · Oct 27, 2026 (1 lines not published). Full pricing
Line items
Hosting $50.00
STT (Deepgram) $9.50
LLM (OpenAI, Vapi calculator range) $7.70
TTS (ElevenLabs, Vapi calculator range) $14.60
Telephony (Vapi numbers, $0) $0.00
Concurrency for 10 calls: Core plan $29 (10 concurrent) $29.00
Source: vapi.ai · Oct 27, 2026. Full pricing
Line items
Bland Start rate (LLM+STT+TTS bundled) $140.00
Start platform fee $0.00
Telephony: own Twilio, inbound local $8.50
Twilio number $1.15
Source: bland.ai · Oct 27, 2026; twilio.com · Oct 27, 2026. Full pricing
Our calculation from list prices. Taxes, SMS, HIPAA and enterprise deals excluded. What the calculator does not include
Call shape
Platform options
Retell
Bland
GoHighLevel
Calculate your monthly cost
At 1,000 minutes a month with 10 concurrent calls, Retell AI is $99.80, Vapi is $110.80–$157.90, and Bland AI is $149.65. ElevenLabs Agents comes to $102.45, and GHL Voice AI on speech-to-speech is $100.00 before phone. Every line links to the vendor page we checked on Oct 27, 2026.
The worked example is 1,000 minutes, 10 concurrent calls, one US number. Change the inputs to recompute every platform with the same function the tables use. Shareable URLs keep this page as their canonical.
AI voice agent cost per minute by platform
Scenario (our assumptions, not vendor figures): inbound calls on one US local number; average call 3 minutes; the business needs 10 calls at once; a GPT-4.1-mini-class LLM; each platform's cheapest published voice. Where a platform bills the LLM by token and publishes no per-minute figure, we use Retell's published GPT 4.1 mini rate ($0.0128/min) as a stand-in and label it assumption.
| Platform | At 500 | At 1,000 | At 5,000 | At 10,000 |
|---|---|---|---|---|
| Retell AI | $0.1018 | $0.0998 | $0.0982 | $0.098 |
| Bland AI | $0.1508 | $0.1497 | $0.1487 | $0.1585 |
 ElevenLabs Agents | $0.1036 | $0.1024 | $0.1015 | $0.1014 |
| GHL speech-to-speech | $0.10 | $0.10 | $0.10 | $0.10 |
| GHL engine + TTS + LLM | $0.0728 | $0.0728 | $0.0728 | $0.0728 |
 Vapi | $0.1398 to $0.1869 | $0.1108 to $0.1579 | $0.0876 to $0.1347 | $0.0847 to $0.1318 |
Sources: retellai.com · Oct 27, 2026; bland.ai · Oct 27, 2026; elevenlabs.io · Oct 27, 2026; help.gohighlevel.com · Oct 27, 2026; vapi.ai · Oct 27, 2026
Cost per month at 500, 1,000, 5,000 and 10,000 minutes
| Platform | 500 min | 1k min | 5k min | 10k min | $/min @1k |
|---|---|---|---|---|---|
| Retell AI | $50.90 | $99.80 | $491.00 | $980.00 | $0.0998 |
| Vapi | $69.90 to $93.45 | $110.80 to $157.90 | $438.00 to $673.50 | $847.00 to $1,318.00 | $0.1108 to $0.1579 |
| Bland AI | $75.40 Start | $149.65 Start | $743.65 Start | $1,585.15 Build | $0.1497 |
| ElevenLabs Agents | $51.80 Creator | $102.45 Creator | $507.61 Pro | $1,014.11 Pro | $0.1024 |
| GHL Voice AI, speech-to-speech | $50.00 | $100.00 | $500.00 | $1,000.00 | $0.10 |
| GHL Voice AI, engine + TTS + LLM | $36.40 | $72.80 | $364.00 | $728.00 | $0.0728 |
Scenario: 10 concurrent calls, 3-minute inbound calls, one US number. 500 min/mo. 1,000 min/mo. 5,000 min/mo. 10,000 min/mo. Per min at 1,000 Sources: retellai.com · Oct 27, 2026; vapi.ai · Oct 27, 2026; bland.ai · Oct 27, 2026; elevenlabs.io · Oct 27, 2026; help.gohighlevel.com · Oct 27, 2026
How the calculator works
Retell AI
Minutes × ($0.055/min infra + LLM + voice + $0.015/min telephony) + $2/month × numbers + extra concurrency above 20 concurrent calls at $8/concurrent call/month.
Vapi
Minutes × ($0.05/min hosting + STT $0.0095–$0.0099/min + LLM $0.0077–$0.0452/min + voice $0.0146–$0.0238/min) + concurrency. At or under the free lines, concurrency is $0. Otherwise we take the cheaper of extra lines at $10/line/month or Core at $29/month while Core still covers the lines. Vapi documents the LLM estimate as 150 output tokens/min; 5 requests per turn; 50% cache-hit assumption; input tokens depend on your prompt.
Bland AI
Calls per day = minutes ÷ 3 ÷ 30. Start if that is within the daily cap, otherwise Build. Minutes × the plan rate + the plan fee + Twilio inbound $0.0085/min + a Twilio number. Bland's own telephony rate is Not published by Bland. Page says Bland's built-in Twilio is 'pass-through cost'; no figure stated.
ElevenLabs Agents
Pick the cheapest plan whose included concurrency covers the scenario. Cost = plan fee + minutes past the included pool × $0.08/min, then the LLM stand-in and Twilio. The silence discount (95% off for silence periods longer than 10 seconds) is not applied.
GoHighLevel Voice AI
Speech-to-speech is minutes × $0.10/min. The engine path adds $0.045/min + $0.015/min + the LLM stand-in. Unlimited is the flat $97/month per sub-account. Phone is GoHighLevel lists LC Phone rates in a separate pricing guide; our totals exclude phone.
What the calculator does not include
- GHL phone (LC Phone): GoHighLevel lists LC Phone rates in a separate pricing guide; our totals exclude phone.
- Bland's built-in telephony: Not published by Bland. Page says Bland's built-in Twilio is 'pass-through cost'; no figure stated.
- ElevenLabs LLM cost: Not published by ElevenLabs. LLM billed separately by model, 'shown in the platform's user interface'; not on public page.
- Retell add-ons, Vapi HIPAA, SMS, taxes, and enterprise contracts.
Next: Retell AI pricing, Vapi pricing, Bland AI pricing, ElevenLabs Agents pricing, GoHighLevel Voice AI pricing, Vapi vs Retell AI.
FAQ
How much does an AI voice agent cost per month?
On our default stack, about $72.80 to $157.90 for 1,000 minutes, depending on platform. The GHL figures exclude phone.
What does an AI voice agent cost per minute?
Effective all-in rates at 1,000 minutes run from $0.0728 (GHL engine, phone excluded) to the high end of Vapi at $0.1108–$0.1579.
Why is my real bill different?
Your LLM, voice, call length, concurrency and add-ons differ from our defaults. Some lines, including Bland telephony, ElevenLabs LLM cost and GHL phone, are not published.