Gemini 3.5 Transcribe now available on AI Gateway

Vercel's AI Gateway now offers Google's Gemini 3.5 Transcribe model, which converts audio to text in two variants: a single-request mode and a live WebSocket mode that updates transcripts in real time. The model supports 85+ languages, custom vocabulary, and is integrated with AI SDK V7's new streamTranscribe function for streaming audio. AI Gateway provides unified API access with no markup on provider pricing and no platform fee on inference, including BYOK requests.

Gemini 3.5 Transcribe https://vercel.com/ai-gateway/models/gemini-3.5-transcribe-live 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: 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 : 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 https://vercel.com/ai-gateway/models/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 https://vercel.com/changelog/custom-reporting-ai-gateway , budgets for API keys https://vercel.com/docs/ai-gateway/authentication-and-byok/api-keys , routing rules https://vercel.com/docs/ai-gateway/models-and-providers/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 https://vercel.com/docs/ai-gateway/authentication-and-byok/byok BYOK requests. You can view all transcription models https://vercel.com/ai-gateway/models?type=transcription available on AI Gateway, or start from the speech quickstart https://vercel.com/docs/ai-gateway/getting-started/speech .