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Gemini 1.0 Ultra vs Kimi Linear

Google Gemini 1.0 Ultra vs Moonshot AI Kimi Linear — side-by-side specs.

Google
Gemini 1.0 Ultra
Moonshot AI
Kimi Linear
Overview
CompanyGoogleMoonshot AI
Release dateFeb 8 2024Oct 2025
Model type
Open sourceNoYes
Specifications
Parameters
48B
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGemini 1.0 Ultra shipped 601 days before Kimi Linear

Which is better: Gemini 1.0 Ultra or Kimi Linear?

Gemini 1.0 Ultra and Kimi Linear do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Gemini 1.0 Ultra shipped 601 days before Kimi Linear, so benchmark comparisons should account for the intervening progress.

Kimi Linear is an open-source / open-weight model; Gemini 1.0 Ultra 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 1.0 Ultra released?
Gemini 1.0 Ultra was released by Google on Feb 8 2024.
When was Kimi Linear released?
Kimi Linear was released by Moonshot AI on Oct 2025.
Is Gemini 1.0 Ultra or Kimi Linear open source?
Kimi Linear is an open-source / open-weight model released by Moonshot AI. Gemini 1.0 Ultra is a proprietary model released by Google.

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