Audio modelActive
Gemini 3.5 Transcribe
- Released
- -
- Data date
- September 24, 2026
- Model class
- Access
Gemini 3.5 Transcribe is Google’s model for audio files that need structured transcription. The gemini-3.5-transcribe endpoint handles up to one hour of audio per request, recognizes more than 85 languages, and handles code-switching within a recording. Smart Dictation, speaker diarization, word-level timestamps, and custom vocabulary of up to 1,000 terms extend the transcript with structured annotations.
Diarization or word-level timestamps reduce the maximum file length to 30 minutes. Attribution for three or more speakers remains experimental, and custom vocabulary cannot be combined with diarization or timestamps. Gemini 3.5 Transcribe Live is the separate endpoint for WebSocket streaming.
Specifications and access
| Specification | Value and source |
|---|---|
| Model class | Speech recognitionSource |
| Access | APISource |
| API model ID | gemini-3.5-transcribeSource |
| Input | AudioSource |
| Output | TextSource |
| Task | TranscriptionSource |
| Supported details | Language detection, diarization, and timestampsSource |
| Languages | Over 85; code-switching within an audio fileSource |
| Audio duration | Up to 1 hour; up to 30 minutes with diarization or word timestampsSource |
| Speaker diarization | Up to 8 speakers; experimental for 3 or moreSource |
| Capabilities | Smart transcription and custom vocabulary with up to 1,000 termsSource |
Popularity
52.1 / 100
Sources and data date
| Type | Evidence and data date |
|---|---|
| Additional source | Google Gemini API model catalog (retrieved September 24, 2026) · Google Gemini API model catalog · Editorial description reviewed October 2, 2026 |
| Additional source | Google Gemini 3.5 Transcribe model documentation · Editorial description reviewed October 2, 2026 |
| Additional source | OpenRouter: Popularity index (derived), CC BY 4.0 |
| Additional source | Vercel AI Gateway: Popularity index (derived), CC BY 4.0 |
| Additional source | Creative Commons Attribution 4.0 |