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Gemini 3.1 Flash-Lite vs Kimi-Dev

Google Gemini 3.1 Flash-Lite vs Moonshot AI Kimi-Dev — side-by-side specs.

Google
Gemini 3.1 Flash-Lite
Moonshot AI
Kimi-Dev
Overview
CompanyGoogleMoonshot AI
Release dateMar 3 2026Jun 2025
Model type
Open sourceNoYes
Specifications
Parameters
72B
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapKimi-Dev shipped 275 days before Gemini 3.1 Flash-Lite

Which is better: Gemini 3.1 Flash-Lite or Kimi-Dev?

Gemini 3.1 Flash-Lite and Kimi-Dev do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Kimi-Dev shipped 275 days before Gemini 3.1 Flash-Lite, so benchmark comparisons should account for the intervening progress.

Kimi-Dev is an open-source / open-weight model; Gemini 3.1 Flash-Lite is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Gemini 3.1 Flash-Lite released?
Gemini 3.1 Flash-Lite was released by Google on Mar 3 2026.
When was Kimi-Dev released?
Kimi-Dev was released by Moonshot AI on Jun 2025.
Is Gemini 3.1 Flash-Lite or Kimi-Dev open source?
Kimi-Dev is an open-source / open-weight model released by Moonshot AI. Gemini 3.1 Flash-Lite is a proprietary model released by Google.

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