Google's Gemini 3.5 Transcribe enters the voice API market at 2.6% error rate

As seen on the 24/7 Wall St. homepage on August 26, 2026.

Alphabet is now selling speech-to-text at 0.40s latency after speech ends, pushing Gemini straight into the voice API market that Whisper and Deepgram have owned.

Google has released Gemini 3.5 Transcribe, ranking #5 on AA-WER at 2.6%, alongside Gemini 3.5 Transcribe Live, achieving 4.0% AA-WER Streaming at 0.40s after speech end Google’s Gemini 3.5 Transcribe release comprises two API offerings: Gemini 3.5 Transcribe Live for continuous https://t.co/y81oauk7Sj
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Google launched two speech-to-text products under the Gemini 3.5 Transcribe name: a standard transcription model and Gemini 3.5 Transcribe Live, built for continuous, real-time use. Both are available as API offerings, meaning developers can start building against them immediately.

The standard model posted a 2.6% word error rate on Artificial Analysis's AA-WER benchmark, placing it fifth overall and putting Google in the conversation with the best available transcription options.

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The Live variant responds just 0.40 seconds after speech ends, the figure that matters most for voice assistants, live captioning, and any application where a user is waiting on a response.

Alphabet is moving directly into territory that dedicated speech API providers have held. Bundling competitive transcription into the Gemini platform gives existing Google Cloud customers a reason to consolidate their voice workloads rather than route them to third-party services.

Mentioned: GOOGL