Gemini 3.5 Transcribe is live on AI Gateway with automatic detection for 85+ languages.

Live audio + recordings: • google/gemini-3.5-transcribe-live • google/gemini-3.5-transcribe

https://t.co/600q7xbvsx

Gemini 3.5 Transcribe now available on AI Gateway - Vercel

Source: https://vercel.com/changelog/gemini-3-5-transcribe-now-available-on-ai-gateway 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:

npm install ai@latest @ai-sdk/gateway@latest

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:

import { gateway } from '@ai-sdk/gateway';
import { experimental_streamTranscribe as streamTranscribe } from 'ai';

const stream = streamTranscribe({
  model: gateway.transcription('google/gemini-3.5-transcribe-live'),
  audio: microphoneStream, // ReadableStream of 16 kHz 16-bit PCM chunks
  inputAudioFormat: { type: 'audio/pcm', rate: 16000 },
  providerOptions: {
    google: { mode: 'SMART' }, // or 'VERBATIM' (default)
  },
});

Complete recordings

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

import { experimental_transcribe as transcribe } from 'ai';
import { readFile } from 'node:fs/promises';

const result = await transcribe({
  model: 'google/gemini-3.5-transcribe',
  audio: await readFile('meeting.mp3'),
});

console.log(result.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).