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Gemini 3.0 Flash vs Kimi K2.5

2 vs 0 benchmarks won

Google
Gemini 3.0 Flash
Moonshot AI
Kimi K2.5
Overview
CompanyGoogleMoonshot AI
Release dateDec 17 2025Jan 27 2026
Model type
Open sourceNoYes
Specifications
Parameters
1T
Context window
256k
Benchmarks
Science reasoning
GPQA Diamond
90.4%
87.6%
Software engineering
SWE-Bench Verified
78%
76.8%
Multimodal understanding
MMMU
Timeline
Release gapGemini 3.0 Flash shipped 41 days before Kimi K2.5

Which is better: Gemini 3.0 Flash or Kimi K2.5?

Gemini 3.0 Flash leads Kimi K2.5 on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Gemini 3.0 Flash shipped 41 days before Kimi K2.5, so benchmark comparisons should account for the intervening progress.

Kimi K2.5 is an open-source / open-weight model; Gemini 3.0 Flash is proprietary.

On GPQA Diamond, Gemini 3.0 Flash scores 90.4%, 2.8 points above Kimi K2.5 at 87.6%. On SWE-Bench Verified, Gemini 3.0 Flash scores 78%, 1.2 points above Kimi K2.5 at 76.8%.

Frequently asked questions

When was Gemini 3.0 Flash released?
Gemini 3.0 Flash was released by Google on Dec 17 2025.
When was Kimi K2.5 released?
Kimi K2.5 was released by Moonshot AI on Jan 27 2026.
Which is better on GPQA Diamond, Gemini 3.0 Flash or Kimi K2.5?
Gemini 3.0 Flash scores higher on GPQA Diamond — Gemini 3.0 Flash 90.4% vs Kimi K2.5 87.6%.
Which is better at coding, Gemini 3.0 Flash or Kimi K2.5?
On SWE-Bench Verified (real-world software-engineering tasks), Gemini 3.0 Flash leads — Gemini 3.0 Flash scores 78% and Kimi K2.5 scores 76.8%.
Is Gemini 3.0 Flash or Kimi K2.5 open source?
Kimi K2.5 is an open-source / open-weight model released by Moonshot AI. Gemini 3.0 Flash is a proprietary model released by Google.

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