Gemini 3.1 Flash-Lite vs Kimi K2
Google Gemini 3.1 Flash-Lite | Moonshot AI Kimi K2 | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | |
| Release date | Mar 3 2026 | Jul 11 2025 |
| Access | Proprietary | Open Weight |
| Specifications | ||
Parameters | — | 1T |
Context window | — | 128k |
| 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. | 11%Best | 10% |
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 | Kimi K2 shipped 235 days before Gemini 3.1 Flash-Lite | |
Which is better: Gemini 3.1 Flash-Lite or Kimi K2?
Gemini 3.1 Flash-Lite leads Kimi K2 on 1 of the 1 benchmark they both report (BullshitBench v2). Kimi K2 shipped 235 days before Gemini 3.1 Flash-Lite, so benchmark comparisons should account for the intervening progress.
Gemini 3.1 Flash-Lite is proprietary, while Kimi K2 is open weight.
On BullshitBench v2, Gemini 3.1 Flash-Lite leads at 11% vs Kimi K2 at 10%.
Frequently asked questions
Gemini 3.1 Flash-Lite was released by Google on Mar 3 2026.
Kimi K2 was released by Moonshot AI on Jul 11 2025.
Gemini 3.1 Flash-Lite is a proprietary model released by Google. Kimi K2 is an open weight model released by Moonshot AI.
Other comparisons
Gemini 3.1 Flash-Lite vs Claude Sonnet 5Kimi K2 vs Claude Sonnet 5Gemini 3.1 Flash-Lite vs GPT-5.6 SolKimi K2 vs GPT-5.6 SolGemini 3.1 Flash-Lite vs Muse Spark 1.1Kimi K2 vs Muse Spark 1.1Gemini 3.1 Flash-Lite vs Grok 4.5Kimi K2 vs Grok 4.5Gemini 3.1 Flash-Lite vs DeepSeek-V4-ProKimi K2 vs DeepSeek-V4-ProGemini 3.1 Flash-Lite vs Mistral Medium 3.5Kimi K2 vs Mistral Medium 3.5