Claude Opus 4.6 vs Kimi K2.5
Head to head on 31 shared benchmarks, with price, context window, and release dates.
Benchmark scores
45evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.6 Anthropic | 99.79 | 67.0% | 69.0% | 1809elo | 77.7 | 40.7% | 89.6% | 39.9% | 53.1% | 84.9% | 88771 | 78.8% | 78.2% | 69.9% | 63.3% | 83.3% | 89.3% | 88.7% | 78.5% | 48.2% | 86.7% | 68.5% | 51.6% | 51.9% | 72.0% | 75.6% | 76.0% | 46.2% | 80.6 | 57.6% | 92.1% | 56.1% | 1.5 | 2.08 | 1223elo | - | - | 58 | - | 93 | - | 50.0% | 44.5 | - | - | 68.1% |
| Kimi K2.5 Moonshot AI | 96.1 | 68.3% | 35.0% | 1579elo | 74.9 | 27.9% | 87.9% | 30.7% | 70.2% | 78.5% | 10421 | 72.5% | 77.9% | 61.4% | 57.4% | 77.7% | 84.9% | 76.0% | 62.0% | 39.3% | 76.4% | 66.5% | 49.9% | 49.0% | 67.3% | 70.8% | 74.2% | 34.8% | 69.4 | 17.5% | 95.9% | - | - | - | - | 35.8% | 95.4 | - | 87.1 | - | 63.3% | - | - | 73 | 26.3% | 59.8% |
2 / 2 models
| Attribute | Claude Opus 4.6 Anthropic | Kimi K2.5 Moonshot AI |
|---|---|---|
| Description | Claude Opus 4.6 is an AI model from Anthropic. | Kimi K2.5 is an AI model from Kimi. |
| Family | Claude | Kimi |
| Params | - | - |
| Open weights | closed | open |
| License | proprietary | Modified MIT |
| Released | 5 Feb 2026 | 27 Jan 2026 |
| Context | 1,000,000 | 262,144 |
| Input $/1M | $5.00 | $0.60 |
| Output $/1M | $25.00 | $2.75 |
| Cache read $/1M | $0.500 | $0.070 |
| Cache write $/1M | $6.250 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text, image |
| Providers | - | - |
| Publisher | Anthropic | Moonshot AI |
| Reported scores | GPQA Diamond89.6% (AA) Humanity's Last Exam (HLE)39.9% (AA) SciCode51.9% (AA) τ²-bench (Tau²-bench)92.1% (AA) Terminal-Bench (Hard)46.2% (AA) | GPQA Diamond87.9% (AA) Humanity's Last Exam (HLE)30.7% (AA) IFBench70.2% (AA) SciCode49.0% (AA) τ²-bench (Tau²-bench)95.9% (AA) |
FAQ
- Is Claude Opus 4.6 or Kimi K2.5 better?
- Across the 31 benchmarks both models report on Sophon, Claude Opus 4.6 leads on 28 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.6 and Kimi K2.5 compare on GPQA Diamond?
- Claude Opus 4.6 scores 89.6% and Kimi K2.5 scores 87.9% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.6 or Kimi K2.5?
- Kimi K2.5 is cheaper at $2.75 per million output tokens against $25.00 for Claude Opus 4.6 - about 9.1x.
- When were Claude Opus 4.6 and Kimi K2.5 released?
- Claude Opus 4.6 was released 5 Feb 2026 by Anthropic. Kimi K2.5 was released 27 Jan 2026 by Moonshot AI.
Other head-to-heads
56Claude Opus 4.6 vs GPT-5.433 shared evalsClaude Opus 4.6 vs Gemini 3.1 Pro Preview31 shared evalsGemini 3.1 Pro Preview vs Kimi K2.530 shared evalsClaude Opus 4.6 vs GPT-5.230 shared evalsGPT-5.2 vs Kimi K2.529 shared evalsClaude Opus 4.6 vs Claude Opus 4.729 shared evalsKimi K2.5 vs Qwen3.6 Plus29 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.528 shared evalsClaude Sonnet 4.5 vs Kimi K2.528 shared evalsClaude Opus 4.6 vs GPT-5 Mini28 shared evalsClaude Opus 4.6 vs GPT-5.528 shared evalsGPT-5.5 vs Kimi K2.528 shared evalsClaude Opus 4.6 vs Claude Opus 4.828 shared evalsClaude Opus 4.8 vs Kimi K2.528 shared evalsClaude Opus 4.5 vs Claude Opus 4.628 shared evalsClaude Opus 4.6 vs Claude Sonnet 4.628 shared evalsGPT-5.4 vs Kimi K2.528 shared evalsClaude Opus 4.7 vs Kimi K2.528 shared evalsClaude Opus 4.6 vs GLM 5.127 shared evalsClaude Sonnet 4.6 vs Kimi K2.527 shared evalsClaude Opus 4.5 vs Kimi K2.526 shared evalsClaude Fable 5 vs Claude Opus 4.626 shared evalsClaude Fable 5 vs Kimi K2.526 shared evalsClaude Opus 4.6 vs DeepSeek V3.226 shared evalsGLM 5.1 vs Kimi K2.526 shared evalsGPT-5 Mini vs Kimi K2.525 shared evalsClaude Opus 4.6 vs Grok 4.1 Fast25 shared evalsClaude Opus 4.6 vs GPT-5.4 Mini25 shared evalsDeepSeek V3.2 vs Kimi K2.525 shared evalsGPT-5.4 Mini vs Kimi K2.525 shared evalsClaude Opus 4.6 vs Qwen3.6 Plus24 shared evalsGrok 4.1 Fast vs Kimi K2.524 shared evalsClaude Opus 4.6 vs GPT-5 Nano23 shared evalsClaude 4 Sonnet vs Kimi K2.523 shared evalsGPT-5 Nano vs Kimi K2.522 shared evalsClaude 4 Sonnet vs Claude Opus 4.622 shared evalsClaude Opus 4.6 vs Gemini 2.5 Pro21 shared evalsClaude Opus 4.6 vs GLM 4.721 shared evalsGemini 2.5 Pro vs Kimi K2.521 shared evalsGLM 4.7 vs Kimi K2.520 shared evalsClaude Opus 4.6 vs GPT-519 shared evalsClaude Opus 4.6 vs gpt-oss-120b19 shared evalsgpt-oss-120b vs Kimi K2.519 shared evalsGPT-5 vs Kimi K2.518 shared evalsClaude Opus 4.6 vs GPT-4o15 shared evalsGPT-4o vs Kimi K2.515 shared evalsClaude Opus 4.6 vs GPT-4.1 Mini13 shared evalsClaude Opus 4.6 vs GPT-4.113 shared evalsClaude Opus 4.6 vs GPT-6 Astra13 shared evalsGPT-6 Astra vs Kimi K2.513 shared evalsGPT-4.1 Mini vs Kimi K2.512 shared evalsClaude Opus 4.6 vs GPT-4o-mini12 shared evalsClaude Opus 4.6 vs GPT-4.1 Nano12 shared evalsGPT-4.1 vs Kimi K2.512 shared evalsGPT-4o-mini vs Kimi K2.512 shared evalsGPT-4.1 Nano vs Kimi K2.512 shared evals
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