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Gemini 3.5 Transcribe Live
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Gemini 3.5 Transcribe Live is a closed-weights speech-to-text model from Google, released August 2026. Licence: proprietary.
Catalogue identity notes
Google's low-latency real-time STT model for bidirectional streaming over WebSockets, API model gemini-3.5-transcribe-live. Released GA on August 26, 2026 together with gemini-3.5-transcribe (Gemini API changelog). Distinct from the catalogue's batch model gemini-3-5-transcribe.
Score within the Open ASR English short-form WER (March 2026) comparison set only.
$ how it compares
The speech-to-text models ranked either side of Gemini 3.5 Transcribe Live, out of 176 with a score, then more from Google.
| # | model | score | where | ||
|---|---|---|---|---|---|
| 31 |  Chirp 3 | 61±2 | api price unknown | ||
| 32 |  Voxtral Small 24B (2507) | 61±2 | api $0.0040/audio min +local | ||
| 33 | Gemini 3.5 Transcribe Live | 61±3 | api $0.0090/audio min | ||
| 34 |  Granite Speech 4.1 2B Plus | 61±4 | local | ||
| 35 |  Parakeet TDT 0.6B v2 | 60±1 | local | ||
| more from Google | |||||
| 11 | Gemini 3.5 Transcribe | 67±6 | api $0.0050/audio min | ||
| 55 | Chirp 2 | 58±3 | api price unknown | ||
| 110 | Chirp | 50±4 | comparison only | ||
see all speech-to-text models · find the ones that fit your machine
$ what it's good at
other tests1 not in a task · 96% of its score
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Pipecat STT Benchmark · pooled semantic WER (1000 smart-turn samples, Sonnet 5.5 judge) | 2.0% ✎ | ▃·▃▅·▅▅·▃▅██ beats 6/16 | 96% |
$ where to run it
Through an API
api · $0.0090/audio min · ai.google.dev ↗ · price sourceProvider-published estimated cost per audio minute: Google lists gemini-3.5-transcribe-live (paid tier) at $3.50/1M audio input tokens or $0.005/min and $21.00/1M text output tokens or $0.004/min, 'for an effective blended rate of ~$0.009 per min for Live Transcribe'; underlying billing is per token. Product: Gemini Developer API (Live API). API model: gemini-3.5-transcribe-live. Settings: Standard paid tier. Price basis: vendor-published per-minute estimate (25 audio tokens/s, 175 text tokens/min). Exclusions: free tier. Currency: USD. Google Gemini API pricing page (CC BY 4.0), observed 2026-10-09.
$ how the score was worked out · Pipecat STT Benchmark · seman… 96%
Each result implies a score on its own, after adjusting for how hard its test is and who ran it. The score is their weighted average, with a small pull toward the middle for thinly tested models. Each test's weight is its counts column above; here it's added up by who ran the tests. How it works
| source | results | share of the score |
|---|---|---|
 Pipecat STT Benchmark · semantic WER results table (pipecat-ai/stt-benchmark README) | 1 | 96% |
| prior · pull toward the middle | 4% | |
| weighted average | = 60.8 |
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data updated · sources and licences · json