Speech-to-Text APIs | Sarvam API Docs

Sarvam AI offers two powerful speech models:

Advanced speech recognition model with superior multi-speaker handling and automatic code-mixing support for Indian languages.

Saaras

Domain-aware translation model with enhanced telephony support and intelligent entity preservation.

View our pricing page for detailed information about model-specific pricing and usage tiers.

API Types

Real-time API

Process short audio files synchronously with immediate response. Best for files under 1 minute.

Batch API

Handle large audio files asynchronously. Ideal for long recordings.

Streaming API

Real-time audio streaming with instant results. Perfect for live transcription.

Supported Audio Formats & MIME Types

The STT and STTT APIs support over 10 major audio formats and MIME type variants. Supported formats and MIME types are listed below:

Format Group	Supported MIME Types
MP3 Variants	`mpeg`, `mp3`, `mpeg3`, `x-mpeg-3`, `x-mp3`
WAV Variants	`wav`, `x-wav`, `wave`
AAC Variants	`aac`, `x-aac`
AIFF Variants	`aiff`, `x-aiff`
OGG / Opus Formats	`ogg`, `opus`
FLAC Variants (Lossless)	`flac`, `x-flac`
MP4 / M4A Audio	`mp4`, `x-m4a`
AMR (Narrowband)	`amr`
WMA (Windows Media Audio)	`x-ms-wma`
WEBM (Audio & Video)	`webm`, `webm`
PCM Formats	`pcm_s16le`, `pcm_l16`, `pcm_raw`

For most audio formats, our API automatically detects the codec. However, when using PCM formats (pcm_s16le, pcm_l16, pcm_raw), you must explicitly specify the input_audio_codec parameter. PCM files are only supported at 16kHz sample rate.

API Features

Language Support

Multiple Indian languages and English support
Automatic language detection
High accuracy transcription

API Types

Real-Time API (under 30 seconds) - Batch API for longer files

Advanced Features

Speaker diarization (Batch API only)
Separate pricing for diarization
Real-time transcription

Next Steps

Choose Your API

Select the appropriate API type based on your use case.

Get API Key

Go Live

Deploy your integration and monitor usage in the dashboard.

Need help choosing the right API? Contact us on discord for guidance.