# Gemini 3.8 Live Extended Thinking

Gemini 3.8 Live Extended Thinking is a Google voice model released Sep 15, 2026; Google's newest voice model in our dataset is Gemini 3.8 Flash TTS. Proprietary, API access only. Google's high-reasoning audio-to-audio Live API model with background reasoning, generally available since Sep 15, 2026. Verified against vendor sources on Oct 26, 2026.

Last verified: 2026-10-26 · Evidence: Reported · Canonical: https://theagenticweekly.com/models/gemini-3-8-live-extended-thinking · JSON: https://theagenticweekly.com/api/models/gemini-3-8-live-extended-thinking

## Key facts

| Fact | Value | Source |
|---|---|---|
| Vendor | Google |  |
| Released | Sep 15, 2026 | https://ai.google.dev/gemini-api/docs/changelog |
| API id | `gemini-3.8-live-extended-thinking` | https://ai.google.dev/gemini-api/docs/models/gemini-3.8-live-extended-thinking |
| Context window | 131,072 tokens (131K) | https://ai.google.dev/gemini-api/docs/models/gemini-3.8-live-extended-thinking |
| Max output | 65,536 tokens | https://ai.google.dev/gemini-api/docs/models/gemini-3.8-live-extended-thinking |
| Input | text, image, audio | https://ai.google.dev/gemini-api/docs/models/gemini-3.8-live-extended-thinking |
| Output | text, audio | https://ai.google.dev/gemini-api/docs/models/gemini-3.8-live-extended-thinking |
| Licence | Proprietary (API) | https://ai.google.dev/gemini-api/docs/models |

## What we tested

Nothing yet. We have not run Gemini 3.8 Live Extended Thinking ourselves, so every fact here is Reported from the sources below.

## Sources

- [Gemini API changelog](https://ai.google.dev/gemini-api/docs/changelog)
- [Gemini API models list](https://ai.google.dev/gemini-api/docs/models)
- [Gemini API model page: Gemini 3.8 Live Extended Thinking](https://ai.google.dev/gemini-api/docs/models/gemini-3.8-live-extended-thinking)

Data licence: CC BY 4.0. Data: Agentic Weekly (https://theagenticweekly.com), CC BY 4.0.