LLaMA 3.1 vs Kimi K2
Meta LLaMA 3.1 | Moonshot AI Kimi K2 | |
|---|---|---|
| Overview | ||
| Company | Meta | Moonshot AI |
| Release date | Jul 23 2024 | Jul 11 2025 |
| Access | Open Weight | 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. | 14%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 | LLaMA 3.1 shipped 353 days before Kimi K2 | |
Which is better: LLaMA 3.1 or Kimi K2?
LLaMA 3.1 leads Kimi K2 on 1 of the 1 benchmark they both report (BullshitBench v2). LLaMA 3.1 shipped 353 days before Kimi K2, 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.
On BullshitBench v2, LLaMA 3.1 leads at 14% vs Kimi K2 at 10%.
Frequently asked questions
LLaMA 3.1 was released by Meta on Jul 23 2024.
Kimi K2 was released by Moonshot AI on Jul 11 2025.
Other comparisons
LLaMA 3.1 vs Claude Sonnet 5Kimi K2 vs Claude Sonnet 5LLaMA 3.1 vs GPT-5.6 SolKimi K2 vs GPT-5.6 SolLLaMA 3.1 vs Gemini OmniKimi K2 vs Gemini OmniLLaMA 3.1 vs Grok 4.5Kimi K2 vs Grok 4.5LLaMA 3.1 vs DeepSeek-V4-ProKimi K2 vs DeepSeek-V4-ProLLaMA 3.1 vs Mistral Medium 3.5Kimi K2 vs Mistral Medium 3.5