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
$79.55 /mo
$0.0796 /min
Line items
Voice Agent API, Standard tier $75.00
Telephony: Twilio Elastic SIP, US local inbound $3.40
Twilio number $1.15
Source: deepgram.com · Oct 27, 2026; twilio.com · Oct 28, 2026. Full pricing
Line items
Grok Voice 3.0 speech to speech (includes LLM) $80.00
Telephony: Twilio Elastic SIP, US local inbound $3.40
Twilio local number $1.15
Concurrency for 10 calls (Tier 0 includes 10) $0.00
Source: docs.x.ai · Oct 28, 2026; twilio.com · Oct 28, 2026. 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: Twilio Elastic SIP, US local inbound $3.40
Twilio number $1.15
Source: elevenlabs.io · Oct 27, 2026; retellai.com · Oct 27, 2026 (1 lines not published). 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
Hosting $50.00
STT (Deepgram) $9.50
LLM (OpenAI, Vapi calculator range) $7.70
TTS (ElevenLabs, Vapi calculator range) $14.60
Telephony (Vapi fee $0; carrier not included) $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: Twilio Elastic SIP, US local inbound $3.40
Twilio number $1.15
Source: bland.ai · Oct 27, 2026; twilio.com · Oct 28, 2026. Full pricing
Line items
Voice agent API, Small 4 (includes LLM) $40.00
Telephony: Twilio Elastic SIP, US local inbound $3.40
Twilio local number $1.15
Telephony is enterprise-only and inbound-only. Its fee is not published, so it is not included in the total.
Source: mistral.ai · Oct 28, 2026; twilio.com · Oct 28, 2026. Full pricing
Carrier assumption: bring-your-own SIP is priced at Twilio Elastic SIP US local inbound ($0.0034/min). Retell uses its published Twilio rate. Vapi's fee is $0 and leaves the carrier out. GoHighLevel phone and Bland's built-in rate are not published.
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
M Mistral Voxtral
Telephony is enterprise-only and inbound-only. Its fee is not published, so it is not included in the total.
Calculate your monthly cost
At 1,000 minutes with 10 calls at once, Mistral Voxtral 3 is $44.55 before its unpublished telephony fee, Grok Voice 3.0 is $84.55, and Deepgram is $79.55. Retell is $99.80, Vapi $110.80–$157.90, Bland $144.55, ElevenLabs $97.35, and GHL speech-to-speech $100.00. Checked Oct 28, 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 | $0.1457 | $0.1446 | $0.1436 | $0.1534 |
 ElevenLabs Agents | $0.0985 | $0.0974 | $0.0964 | $0.0963 |
| GHL speech-to-speech | $0.10 | $0.10 | $0.10 | $0.10 |
| GHL engine + TTS + LLM | $0.0728 | $0.0728 | $0.0728 | $0.0728 |
| Deepgram Voice Agent API | $0.0807 | $0.0796 | $0.0786 | $0.0785 |
| GV Grok Voice 3.0 | $0.0857 | $0.0846 | $0.0836 | $0.0835 |
| M Mistral Voxtral 3 Small 4 excl. telephony fee · enterprise only | $0.0457 | $0.0446 | $0.0436 | $0.0435 |
 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; deepgram.com · Oct 27, 2026; docs.x.ai · Oct 28, 2026; mistral.ai · Oct 28, 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 | $72.85 Start | $144.55 Start | $718.15 Start | $1,534.15 Build | $0.1446 |
| ElevenLabs Agents | $49.25 Creator | $97.35 Creator | $482.11 Pro | $963.11 Pro | $0.0974 |
| 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 |
| Deepgram Voice Agent API | $40.35 | $79.55 | $393.15 | $785.15 | $0.0796 |
| GV Grok Voice 3.0 | $42.85 | $84.55 | $418.15 | $835.15 | $0.0846 |
| M Mistral Voxtral 3 Small 4 excl. telephony fee · enterprise only | $22.85 | $44.55 | $218.15 | $435.15 | $0.0446 |
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; deepgram.com · Oct 27, 2026; docs.x.ai · Oct 28, 2026; twilio.com · Oct 28, 2026; mistral.ai · Oct 28, 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 Elastic SIP $0.0034/min + a Twilio number. Bland's built-in telephony rate is not published.
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. GoHighLevel lists LC Phone rates in a separate pricing guide, so phone is left out of the total.
What the calculator does not include
- GHL phone (LC Phone) is not on the AI pricing page. GoHighLevel lists those rates in a separate pricing guide, so the total excludes phone.
- Bland's built-in telephony is not published. Bland calls its Twilio line a pass-through cost.
- ElevenLabs bills the LLM separately. The rate is shown in the product, not on the public pricing 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.
Sources
- retellai.com ·
- vapi.ai ·
- bland.ai ·
- elevenlabs.io ·
- help.gohighlevel.com ·
- twilio.com ·
- deepgram.com ·
- docs.x.ai ·
- mistral.ai ·