Claude Opus 5 vs Kimi K2
Kimi K2 leads in 4 of 8 categories
Arena ELO
Kimi K2
Cheaper
Kimi K2
Faster
Kimi K2
Detailed Comparison
| Category | Claude Opus 5 | Kimi K2 |
|---|---|---|
| Provider | Anthropic | Moonshot |
| Context Window | 200K WIN | 128K |
| Input Price ($/1M) | $15 | $0.55 WIN |
| Output Price ($/1M) | $75 | $2.2 WIN |
| Arena ELO | N/A | 1380 WIN |
| Coding | N/A | 65.8% SWE-bench |
| Reasoning | N/A | 60.2% BrowseComp |
| Speed (tokens/sec) | N/A | ~50 t/s WIN |
| Open Source | No | Yes |
Frequently Asked Questions
Which is cheaper, Claude Opus 5 or Kimi K2?
Kimi K2 is approximately 97% cheaper than Claude Opus 5 per million tokens.
Which is better for coding, Claude Opus 5 or Kimi K2?
Claude Opus 5 scores N/A on coding benchmarks, while Kimi K2 scores 65.8% SWE-bench.
Which has a larger context window?
Claude Opus 5 supports 200K context, while Kimi K2 supports 128K.
Is Claude Opus 5 or Kimi K2 open source?
Claude Opus 5 is proprietary. Kimi K2 is open source.
Related Articles
More Comparisons
Claude Opus 5 vs Claude Opus 4.5Claude Opus 5 vs Llama 4 ScoutClaude Opus 5 vs Claude Haiku 4.5Claude Opus 5 vs Qwen 3.6Claude Opus 5 vs Kimi K2.7 CodeClaude Opus 5 vs Llama 4 MaverickClaude Opus 5 vs GPT-5.3-CodexClaude Opus 5 vs Gemma 4Kimi K2 vs Claude Opus 4.5Kimi K2 vs Llama 4 ScoutKimi K2 vs Claude Haiku 4.5Kimi K2 vs Qwen 3.6Kimi K2 vs Kimi K2.7 CodeKimi K2 vs Llama 4 MaverickKimi K2 vs GPT-5.3-CodexKimi K2 vs Gemma 4