Early preview
G

Google

Gemini 3.1 Pro

Announced Feb 19, 2026

Deeper reasoning for complex questions

01

What could it do?

Google previewed improved reasoning for tasks requiring more than a simple answer.

02

What changed?

An update to the Pro model.

WHY IT MATTERED

Helped users synthesize information and tackle complex tasks.

03

Where it fell short

Announced as a preview; benchmark results are not guarantees for individual tasks.

Sources checked Oct 7, 2026

Release facts were checked against the sources below. Performance claims belong to the developers; we have not independently tested these models.

Developer announcement or release log

Benchmark results

EPOCH AI CAPABILITY ESTIMATE
154.8index points
Tested variant: Gemini 3.1 ProSource interval: 152.4 to 157.3Variant date in source: Feb 19, 2026

A benchmark estimate, not a percentage or capability multiplier. Reasoning settings are not specified in this source table. Historical estimates can change in later snapshots.

Epoch AI methodology ↗Download the source snapshotChecked Oct 7, 2026 · CC BY 4.0
PUBLISHED BENCHMARK RESULT
30.0index points
Tested: Gemini 3.1 Pro PreviewIntelligence Index v4.3.2

Selected highest effort variant where available in the current table. Starred partial results are excluded. Claude fallback configurations can use other models when safeguards intervene.

Source: Artificial Analysis Intelligence Index ↗Download selected resultsChecked Oct 8, 2026
PUBLISHED BENCHMARK RESULT
1487rating points
Tested: gemini-3.1-pro-previewText Arena Overall · October 8, 2026Reported interval: 1484 to 1490124,675 votes

One explicitly named variant per release. Scores come from the same Overall snapshot; preliminary entries and reported intervals are preserved. These are current ratings of earlier variants, not their launch day ratings.

Source: Text Arena ↗Download selected resultsChecked Oct 8, 2026
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