Audio transcription API
Files, duration limits and separate speech-to-text billing.
Send an audio file
Accepted models use /v1/audio/transcriptions with a multipart upload. The gateway limits uploads to 8 MiB. Check model availability and allowed settings first.
Duration-based billing
A per-second tariff reserves its configured upper limit, then charges the provider-confirmed duration. File size does not substitute for audio duration or billable text tokens.
Quality and privacy
Test typical noise, language and speakers. Upload only recordings you are entitled to process. Give support the request ID rather than the recording or full API key.