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Gemini 3.8 Live Extended Thinking

CurrentReleased Sep 15, 2026ProprietaryReasoning128K contextGoogle model card

Released Sep 15, 2026 — see all recent releases

Decision reading
Gemini 3.8 Live Extended Thinking is tracked, but not publicly ranked yet. The profile exposes 0 sourced benchmark rows and leaves unsupported fields blank until a published record exists.

Data as of September 15, 2026 · How the score is built

View Google audio evaluation resultsFind alternatives

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Voice benchmark evidence

Gemini 3.8 Audio model evaluation is an owner-defined voice evaluation. Its result stays separate from BenchLM's weighted text-model ranking.

Speech-to-speech index
82.6%
τ-Voice task success
68.6%
Sierra τ³-Banking task success
35.1%
Provider API ID
gemini-3.8-live-extended-thinking
Google model evaluation · September 15, 2026 · Extended Thinking at high effort; voice results are display-only
Open benchmark profileModel documentation

Spec sheet

Each documented value carries its source. Missing fields stay visible as not sourced or not published, rather than disappearing from the page.

API model ID
gemini-3.8-live-extended-thinkingGoogle model documentation
Context window
128KGoogle model documentation
Maximum output
Not sourced yet
Knowledge cutoff
Not sourced yet
Input modalities
Not sourced yet
Output modalities
Not sourced yet
Parameters
Not disclosed by the provider
Availability
Available as the stable `gemini-3.8-live-extended-thinking` Live API model, with Google AI Studio, Gemini app, Vertex AI, and Google Workspace access listed on the model card.
Cloud regions
Not tracked yet
Lifecycle
Current
API capabilities
Tool calling, structured outputs, and batch support are not tracked yet
Prompt caching
Not documented in the pricing recordGoogle model documentation
Self-host
Weights are not published
Rate limits
Not tracked yet

Lineage

The sequence follows explicit supersedes links. A successor's displayed score stays at least 0.1 points above its predecessor; raw benchmark rows do not move. Scores and prices remain blank when the corresponding public row or first-party rate is unavailable.

  1. Sep 15, 2026 · you are here

    Gemini 3.8 Live Extended Thinking

    Not publicly ranked · $0.75 / $4.5

Thinking

Gemini 3.8 LiveGemini 3.8 Live

How to read this profile

The visual layer above carries the decisions. These notes preserve the model, ranking, coverage, and family context behind the numbers.

We track Gemini 3.8 Live Extended Thinking, but no weighted text-model benchmark result is published on the site yet. This page shows the metadata and separate protocol evidence we can verify now; a BenchLM score will appear only if compatible public evaluations land.

Gemini 3.8 Live Extended Thinking is a proprietary model with a 128K context window. It uses an explicit reasoning mode, which can improve complex problem solving while adding latency and token use.

Available as the stable `gemini-3.8-live-extended-thinking` Live API model, with Google AI Studio, Gemini app, Vertex AI, and Google Workspace access listed on the model card.

Google’s September 15 Gemini 3.8 Audio card describes a separate Live Extended Thinking variant with 128K input context, background reasoning, and audio and text output. High-effort voice evaluations stay display-only and are not assigned to the default Live row.

Gemini 3.8 Live Extended Thinking sits in the Gemini 3.8 Live family with Gemini 3.8 Live. The profile has no source-displayable benchmark row yet.

Radar

Gemini 3.8 Live Extended Thinking release history

Full release history

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Frequently asked questions

How does Gemini 3.8 Live Extended Thinking perform overall in AI benchmarks?

Gemini 3.8 Live Extended Thinking does not have any source-displayable benchmark rows yet, so this profile does not assign a public score or rank. Documented specifications remain visible, while score-led charts and claims stay unavailable until a published evaluation can be attached to the exact model.

Which sibling models are related to Gemini 3.8 Live Extended Thinking?

Gemini 3.8 Live Extended Thinking belongs to the Gemini 3.8 Live family. Related tracked variants include Gemini 3.8 Live. A sibling link indicates shared lineage or a documented configuration relationship; it does not mean the variants have identical pricing, context limits, benchmark evidence, or deployment behavior. Compare before switching.

Does Gemini 3.8 Live Extended Thinking have full benchmark coverage on BenchLM?

No. Gemini 3.8 Live Extended Thinking currently has 0 source-displayable rows across 439 tracked benchmark slots. The profile exposes published, non-generated evidence and leaves missing categories blank until an exact evaluation is available. Coverage describes how much was measured; it is not a penalty added to an individual benchmark result.

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

Gemini 3.8 Live Extended Thinking has a documented context window of 128K. That figure is the maximum combined prompt and retained-conversation space reported for this exact model; it is not the maximum output length. The profile keeps output limits separate because providers often publish those limits independently.

Compare Gemini 3.8 Live Extended Thinking with every tracked model485 comparisons

Last updated September 15, 2026. Runtime fields remain blank until a sourced snapshot exists.

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