AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

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Gemini 3.1 Pro vs Kimi Linear

2 vs 0 benchmarks won

Google
Gemini 3.1 Pro
Moonshot AI
Kimi Linear
Overview
CompanyGoogleMoonshot AI
Release dateFeb 19 2026Oct 2025
Model type
Open sourceNoYes
Specifications
Parameters
48B
Context window
Benchmarks
Science reasoning
GPQA Diamond
94.3%
Software engineering
SWE-Bench Verified
80.6%
Multimodal understanding
MMMU
Timeline
Release gapKimi Linear shipped 141 days before Gemini 3.1 Pro

Which is better: Gemini 3.1 Pro or Kimi Linear?

Gemini 3.1 Pro leads Kimi Linear on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Kimi Linear shipped 141 days before Gemini 3.1 Pro, so benchmark comparisons should account for the intervening progress.

Kimi Linear is an open-source / open-weight model; Gemini 3.1 Pro 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 Pro released?
Gemini 3.1 Pro was released by Google on Feb 19 2026.
When was Kimi Linear released?
Kimi Linear was released by Moonshot AI on Oct 2025.
Is Gemini 3.1 Pro or Kimi Linear open source?
Kimi Linear is an open-source / open-weight model released by Moonshot AI. Gemini 3.1 Pro is a proprietary model released by Google.

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