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

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Gemini Omni vs Kimi K2.5

0 vs 2 benchmarks won

Google
Gemini Omni
Moonshot AI
Kimi K2.5
Overview
CompanyGoogleMoonshot AI
Release dateMay 19 2026Jan 27 2026
Model type
Open sourceNoYes
Specifications
Parameters
1T
Context window
256k
Benchmarks
Science reasoning
GPQA Diamond
87.6%
Software engineering
SWE-Bench Verified
76.8%
Multimodal understanding
MMMU
Timeline
Release gapKimi K2.5 shipped 112 days before Gemini Omni

Which is better: Gemini Omni or Kimi K2.5?

Kimi K2.5 leads Gemini Omni on 2 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). Kimi K2.5 shipped 112 days before Gemini Omni, so benchmark comparisons should account for the intervening progress.

Kimi K2.5 is an open-source / open-weight model; Gemini Omni 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 Omni released?
Gemini Omni was released by Google on May 19 2026.
When was Kimi K2.5 released?
Kimi K2.5 was released by Moonshot AI on Jan 27 2026.
Is Gemini Omni or Kimi K2.5 open source?
Kimi K2.5 is an open-source / open-weight model released by Moonshot AI. Gemini Omni is a proprietary model released by Google.

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