Gemini 2.0 Flash vs Kimi K2 (0905)
Google Gemini 2.0 Flash | Moonshot AI Kimi K2 (0905) | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | |
| Release date | Jan 30 2025 | Sep 5 2025 |
| Access | Proprietary | 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. | 15% | — |
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 2.0 Flash shipped 218 days before Kimi K2 (0905) | |
Which is better: Gemini 2.0 Flash or Kimi K2 (0905)?
Gemini 2.0 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 2.0 Flash shipped 218 days before Kimi K2 (0905), so benchmark comparisons should account for the intervening progress.
Gemini 2.0 Flash is proprietary, while Kimi K2 (0905) is open weight.
Direct benchmark comparisons are unavailable — Gemini 2.0 Flash and Kimi K2 (0905) don't publish scores on any of the same benchmarks.
Frequently asked questions
Gemini 2.0 Flash was released by Google on Jan 30 2025.
Kimi K2 (0905) was released by Moonshot AI on Sep 5 2025.
Gemini 2.0 Flash is a proprietary model released by Google. Kimi K2 (0905) is an open weight model released by Moonshot AI.
Other comparisons
Gemini 2.0 Flash vs Claude Sonnet 5Kimi K2 (0905) vs Claude Sonnet 5Gemini 2.0 Flash vs GPT-5.6 SolKimi K2 (0905) vs GPT-5.6 SolGemini 2.0 Flash vs Muse Spark 1.1Kimi K2 (0905) vs Muse Spark 1.1Gemini 2.0 Flash vs Grok 4.5Kimi K2 (0905) vs Grok 4.5Gemini 2.0 Flash vs DeepSeek-V4-ProKimi K2 (0905) vs DeepSeek-V4-ProGemini 2.0 Flash vs Mistral Medium 3.5Kimi K2 (0905) vs Mistral Medium 3.5