Gemini 3.5 Transcribe now available on AI Gateway

Gemini 3.5 Transcribe from Google is now available on AI Gateway. It takes audio and returns text, in two variants:

• google/gemini-3.5-transcribe transcribes a complete recording in a single request.
• google/gemini-3.5-transcribe-live transcribes audio over a WebSocket, returning a transcript that updates while the recording is still going.

The model detects the language on its own, covers 85+, and follows a speaker who switches language partway through. You can also supply custom vocabulary so it recognizes names, jargon, and spellings.

Streaming transcription is new in AI SDK V7:

Live transcription

streamTranscribe opens the socket and takes a ReadableStream of raw audio chunks, so you can pass a microphone straight through. Tell it the format you are sending with inputAudioFormat:

Complete recordings

For audio you already have on disk, transcribe sends it in one request and returns the text:

You can also try the model without writing any code. Open Gemini 3.5 Transcribe Live and send audio to read the transcript in the browser.

AI Gateway provides a unified API for calling models, tracking usage and cost, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting, budgets for API keys, routing rules, and more.

AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on Bring Your Own Key (BYOK) requests.

You can view all transcription models available on AI Gateway, or start from the speech quickstart.