utter docs

Speech to text built for how India actually speaks. Hinglish, Hindi and English (India) over one API, with four latency tiers you pick per request.

Start in five minutes

Create a key in the console, open a WebSocket, push float32 PCM. Quickstart

Streaming over WebSocket

Frame format, the "eof" sentinel, and every event the server sends. Streaming

Pick a latency tier

Four tiers, from 80 ms to 1.12 s, priced per second of audio. Latency tiers

Prepaid credits

Buy credits up front. Usage debits them per second, with no rounding up to the minute. Pricing and credits