Claude Opus 4.6 vs Kimi K2
Kimi K2 leads in 3 of 8 categories
Arena ELO
Claude Opus 4.6
Cheaper
Kimi K2
Faster
Kimi K2
Detailed Comparison
| Category | Claude Opus 4.6 | Kimi K2 |
|---|---|---|
| Provider | Anthropic | Moonshot |
| Context Window | 1M WIN | 128K |
| Input Price ($/1M) | $5 | $0.55 WIN |
| Output Price ($/1M) | $25 | $2.2 WIN |
| Arena ELO | 1549 WIN | 1380 |
| Coding | 80.8% SWE-bench | 65.8% SWE-bench |
| Reasoning | 65.4% Terminal-Bench | 60.2% BrowseComp |
| Speed (tokens/sec) | ~40 t/s | ~50 t/s WIN |
| Open Source | No | Yes |
Frequently Asked Questions
Which is cheaper, Claude Opus 4.6 or Kimi K2?
Kimi K2 is approximately 91% cheaper than Claude Opus 4.6 per million tokens.
Which is better for coding, Claude Opus 4.6 or Kimi K2?
Claude Opus 4.6 scores 80.8% SWE-bench on coding benchmarks, while Kimi K2 scores 65.8% SWE-bench.
Which has a larger context window?
Claude Opus 4.6 supports 1M context, while Kimi K2 supports 128K.
Is Claude Opus 4.6 or Kimi K2 open source?
Claude Opus 4.6 is proprietary. Kimi K2 is open source.
Which ranks higher on the Chatbot Arena leaderboard?
Claude Opus 4.6 ranks higher with ELO 1549 vs 1380.
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