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Gemini 3.8 Live Extended Thinking

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Higher-reasoning Gemini 3.8 voice model from Google that thinks and speaks at the same time

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About Gemini 3.8 Live Extended Thinking

Of Google's two Gemini 3.8 Live models, the Extended Thinking one does more reasoning. Its rollout began on 15 September 2026. It is meant for demanding, multi-stage tasks inside live voice calls. Google says the model keeps reasoning as it talks, with no pause to think first.

What Gemini 3.8 Live Extended Thinking offers

  • Multimodal input: accepts spoken audio, pictures, video and written text, and replies by voice or in writing.
  • Reasoning during speech: thinking continues while the model talks.
  • Limits: 131,072 input tokens and 65,536 output tokens, matching 3.8 Live.
  • Asynchronous function calling: the model page notes that function calling works only in this mode.

Who it works with

Developers using the Gemini API and Google AI Studio. Subscribers to Google AI can also reach it in Gemini Live and across Docs, Gmail and Keep, while Gemini Enterprise has a private preview.

Key facts

  • Model id: gemini-3.8-live-extended-thinking, listed as stable
  • Ranking: Google reports first place on Artificial Analysis' speech-to-speech index, at 82.6, its own figure
  • Provenance: based on Gemini 3 Pro, with SynthID-watermarked audio

Profile written by TrustList from the business's own published information, Oct 2026.

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Trust Score

4/ 100
Trust Score: New

An earned signal from verification, reviews, awards, transparency and engagement — the vendor can't buy it.

Verification
0/100 · 20%
Reviews
0/100 · 30%
Awards
0/100 · 15%
Transparency
18/100 · 20%
Engagement
0/100 · 15%
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Updated 9/16/2026

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