01 · day one
Developer
$50.00 credit, no card, the printed rates.
10 concurrent calls · 20 req/s · 10 cloned voices · 8,000-character agent instructions
Get API KeyPyAI pricing · Built around usage
Hearing, reasoning and speech
Connected phone minutes
Optional compliance review
Explore the rate card
Choose a product to see its meter, what is included and a worked example. Every figure comes from the same rate card used for billing.
Explore the rate card
per minute, per-second metering
$3.00 per hour for speech + brain
Use a sandbox key for capped testing without billing. Fund a live key before production traffic.
A 4-minute Omni session costs $0.2. Managed telephony adds $0.04.
Every number above is the exact rate we bill from, the same figure on your invoice.
The terms, once
Most voice platforms round every call up to the next minute, a habit inherited from telephony. On a fleet of short calls, that can multiply your bill. For Omni sessions, PyAI sums exact seconds across the whole billing period and rounds once, at the invoice line.
100,000 calls × 12s, each rounded up to a 1-minute minimum = 100,000 billed minutes.
100,000 calls × 12s = 20,000 actual minutes, billed as metered. No per-call rounding.
Same calls, same rate, 5× the bill comes from rounding alone. That gap is invisible until you read the invoice.
Illustrative at $0.05/min for Omni speech + brain. Synchronous Hear instead rounds each non-empty upload to whole minutes, minimum one. Managed telephony is separate at $0.01/min and keeps a 1-minute pulse because resold carrier minutes have different economics.
A path for the way you grow
You don’t pick a plan. Start free on the printed rates, commit at volume to go below them, and bring in Enterprise when procurement calls.
01 · day one
$50.00 credit, no card, the printed rates.
10 concurrent calls · 20 req/s · 10 cloned voices · 8,000-character agent instructions
Get API Key02 · at volume
Rates drop below the card. Priority support.
50 concurrent calls · 50 req/s · 100 cloned voices · 32,000-character agent instructions (4× more)
Talk to us03 · at procurement
SSO, BAA, SLA, dedicated review workflows.
1,000 concurrent calls · 1,000 req/s · unlimited voices · 32,000-character agent instructions
Talk to usA little more detail
See how the rate card, sandbox testing and live usage fit together.
PyAI Omni is $0.05/min for speech + brain plus a separately listed telephony rate. Vapi advertises about $0.05/min as a platform fee; all-in typically lands around $0.10-$0.31/min once you add STT, an LLM, TTS, and telephony.
It depends on the endpoint. Synchronous Hear transcription rounds each non-empty request up to a whole minute, with a one-minute minimum. Speak bills fractional minutes of generated audio. Omni sessions use metered duration; managed telephony has a one-minute pulse. See the metering documentation for each product's units.
$50.00 in free credit at signup, no card. Spend draws down the credit; when it runs out you simply add funding. AMD's first 5,000 answered calls each month are free.
Your sandbox test key works instantly and free. When you're ready for live traffic, add a card or top up prepaid credit in the console - self-serve, no sales call. Phone verification unlocks free live credit first.
Yes. The rate card is the ceiling, not the floor: Business and Enterprise commit volume and pay less. Batch transcription is already half price at $0.0005/min, and Trace can be packaged as an annual compliance plan.
Sandbox keys never bill. Fund a live key when you go to production.