Gemma 4 vs Kimi K2.5
Google Gemma 4 | Moonshot AI Kimi K2.5 | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | |
| Release date | Apr 2 2026 | Jan 27 2026 |
| Access | Open Weight | Open Weight |
| Specifications | ||
Parameters | — | 1T |
Context window | — | 256k |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 52% |
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | — | 76.8% |
Agentic coding CursorBench v3.1Cursor's own test of harder, real-world coding tasks inside a code editor. Higher is better. | — | 31.9% |
Next.js coding Next.js EvalsVercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | — | 21% |
Competitive coding LiveCodeBenchCoding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | — | 85% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 87.6% |
| Timeline | ||
| Release gap | Kimi K2.5 shipped 65 days before Gemma 4 | |
Which is better: Gemma 4 or Kimi K2.5?
Gemma 4 and Kimi K2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi K2.5 shipped 65 days before Gemma 4, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — Gemma 4 and Kimi K2.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemma 4 was released by Google on Apr 2 2026.
Kimi K2.5 was released by Moonshot AI on Jan 27 2026.
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