# Gemini 3.8 Live Extended Thinking

> Gemini 3.8 Live Extended Thinking is a proprietary language model from Google DeepMind, released on 15 Sept 2026. It accepts text and audio and generates text and audio, with a 131K-token context window and up to 66K output tokens per response. As of 21 Oct 2026, the lowest listed API price is $0.75 per million input tokens and $4.50 per million output tokens (Vercel AI Gateway), across 1 provider we track.

Source page: https://www.aimodel.directory/models/gemini-3-8-live-extended-thinking
Last verified: 21 Oct 2026

## Specifications

- **Developer:** Google DeepMind
- **Release date:** 15 Sept 2026 (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Status:** Generally available (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Weights:** Proprietary (API only) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Context window:** 131K (131,072 tokens) (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Max output:** 66K tokens (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Input:** Text and audio (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Output:** Text and audio (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Reasoning mode:** No (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)
- **Tool calling:** Yes (source: models.dev, https://github.com/sst/models.dev/blob/dev/providers/vercel/models/google/gemini-3.8-live-extended-thinking.toml)

## API pricing (USD per 1M tokens)

| Provider | Input | Output | Cached input | Context |
|---|---|---|---|---|
| Vercel AI Gateway | $0.75 | $4.50 | – | 131K |

## FAQ

### What is the context window of Gemini 3.8 Live Extended Thinking?

Gemini 3.8 Live Extended Thinking has a context window of 131,072 tokens (131K) and can generate up to 65,536 tokens in a single response, according to models.dev.

### How much does the Gemini 3.8 Live Extended Thinking API cost?

Gemini 3.8 Live Extended Thinking is listed from $0.75 per million input tokens and $4.50 per million output tokens (Vercel AI Gateway). Prices last verified 21 Oct 2026.

### Is Gemini 3.8 Live Extended Thinking open source?

No. Gemini 3.8 Live Extended Thinking is a proprietary model; Google DeepMind has not released its weights. It is available through APIs including Vercel AI Gateway.

### When was Gemini 3.8 Live Extended Thinking released?

Google DeepMind released Gemini 3.8 Live Extended Thinking on 15 Sept 2026, according to models.dev.

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Data licensed CC BY 4.0. Cite as: AI Model Directory, "Gemini 3.8 Live Extended Thinking", https://www.aimodel.directory/models/gemini-3-8-live-extended-thinking