Transparent pricing.
Every plan includes the full VSIP event schema — VAD, turn detection, barge-in, speaker ID, noise classification. No feature gating.
Free
Starter
Growth
Scale
Need higher limits or custom SLAs? Contact us for an Enterprise plan.
WHAT'S INCLUDED IN EVERY PLAN
ENGINE CAPABILITIESFrequently asked questions.
What counts as a stream?
Each concurrent WebSocket connection to /v1/stream counts as one active stream. A stream starts when the connection opens and ends when it closes — there is no timeout. Concurrent stream limits are enforced per tenant, not per API key.
When am I billed?
Usage is measured in minutes, rounded up to the next whole minute per stream. Each plan includes a monthly allowance. Usage beyond the allowance is billed at the per-minute overage rate shown above. You receive a Stripe invoice at the end of each calendar month.
Can I cancel anytime?
Yes. Cancel from the Billing dashboard at any time — no lock-in. Your paid plan stays active until the end of the current billing period, then reverts to the Free tier. You keep all your API keys and session data.