Early preview
G

Google

Gemini 3 Flash

Announced Dec 17, 2025

Reasoning at interactive speed

01

What could it do?

Google brought Gemini 3 reasoning and multimodal capabilities to a faster Flash model.

02

What changed?

Expanded access across the Gemini app and developer products.

WHY IT MATTERED

Made the generation useful for frequent interactive tasks.

03

Where it fell short

Speed and quality vary by workload and thinking settings.

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
151.8index points
Tested variant: Gemini 3 FlashSource interval: 150.3 to 153.3Variant date in source: Dec 17, 2025

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
1473rating points
Tested: gemini-3-flashText Arena Overall · October 8, 2026Reported interval: 1469 to 147731,337 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
PUBLISHED BENCHMARK RESULT
75.8%% resolved
Tested: Gemini 3 Flash (high)500 tasks · mini-SWE-agent v2.0.0Run: Feb 17, 2026 · Effort: highPublished submission; not marked as checked by the benchmark team

Only mini-SWE-agent v2.0.0 submissions, one run per model. Reasoning effort varies and is labelled. These are published submissions, not a rerun by Leapscope. Latest included release: February 5, 2026; latest run: February 26, 2026.

Source: SWE bench Verified ↗Download selected resultsChecked Oct 8, 2026
FOLLOW WHAT HAPPENS NEXT

Breakthroughs, with the followup.

A weekly brief on new discoveries, meaningful checks and what you can actually use.