Gemini 1.5 Flash vs Kimi K2 (0905)
Google Gemini 1.5 Flash | Moonshot AI Kimi K2 (0905) | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | |
| Release date | May 14 2024 | Sep 5 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 1T |
Context window | — | 256k |
| Benchmarks | ||
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. | — | 65.8% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 75.1% |
| Timeline | ||
| Release gap | Gemini 1.5 Flash shipped 479 days before Kimi K2 (0905) | |
Which is better: Gemini 1.5 Flash or Kimi K2 (0905)?
Gemini 1.5 Flash and Kimi K2 (0905) don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 1.5 Flash shipped 479 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.
Gemini 1.5 Flash is proprietary, while Kimi K2 (0905) is open weight.
Direct benchmark comparisons are unavailable — Gemini 1.5 Flash and Kimi K2 (0905) don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemini 1.5 Flash was released by Google on May 14 2024.
Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.
Gemini 1.5 Flash is a proprietary model released by Google. Kimi K2 (0905) is an open weight model released by Moonshot AI.
Other comparisons
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