GPT-4.1 vs Kimi K2.5
Head to head on 12 shared benchmarks, with price, context window, and release dates.
Benchmark scores
63evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Kimi K2.5 Moonshot AI | 68.3% | 1579elo | 27.9% | 87.9% | 30.7% | 70.2% | 66.5% | 49.0% | 70.8% | 74.2% | 34.8% | 95.9% | - | - | - | - | 96.1 | - | - | - | - | - | 35.0% | - | 74.9 | 35.8% | - | 95.4 | 78.5% | 10421 | 72.5% | 77.9% | 61.4% | 57.4% | 77.7% | 84.9% | 76.0% | - | - | - | - | - | 62.0% | - | - | 39.3% | - | 76.4% | 87.1 | - | - | 63.3% | 49.9% | - | 73 | 67.3% | - | - | 69.4 | 26.3% | 17.5% | - | - | 59.8% |
| GPT-4.1 OpenAI | 63.1% | 1420elo | 5.5% | 66.6% | 4.2% | 43.0% | 65.9% | 38.1% | 39.6% | 75.1% | 13.6% | 47.1% | 0.0% | 52.4% | 43.7% | 34.7% | - | 26.7% | 61.5% | 1.64 | 83.7% | 1.55 | - | 12.4% | - | - | 60.9% | - | - | - | - | - | - | - | - | - | - | 45.7% | 70.8% | 0.49 | 0.49 | 91.3% | - | 32.1% | 32.1% | - | 69.4% | - | - | 80.6% | 50.5% | - | - | 8.57 | - | - | 31.1% | 10.0% | - | - | - | 92.0% | 92.0% | 48.0% |
2 / 2 models
| Attribute | GPT-4.1 OpenAI | Kimi K2.5 Moonshot AI |
|---|---|---|
| Description | GPT-4.1 is an AI model from OpenAI. | Kimi K2.5 is an AI model from Kimi. |
| Family | GPT | Kimi |
| Params | - | - |
| Open weights | closed | open |
| License | proprietary | Modified MIT |
| Released | 14 Apr 2025 | 27 Jan 2026 |
| Context | 1,047,576 | 262,144 |
| Input $/1M | $2.00 | $0.60 |
| Output $/1M | $8.00 | $2.75 |
| Cache read $/1M | $0.500 | $0.150 |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | image, text, file | text, image |
| Providers | - | - |
| Publisher | OpenAI | Moonshot AI |
| Reported scores | ScholarSearch8.57 Social Sciences & Humanities (%) GPQA Diamond66.6% (AA) Humanity's Last Exam (HLE)4.2% (AA) IFBench43.0% (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 GPT-4.1 or Kimi K2.5 better?
- Across the 12 benchmarks both models report on Sophon, Kimi K2.5 leads on 11 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do GPT-4.1 and Kimi K2.5 compare on GPQA Diamond?
- GPT-4.1 scores 66.6% and Kimi K2.5 scores 87.9% on GPQA Diamond.
- Which is cheaper, GPT-4.1 or Kimi K2.5?
- Kimi K2.5 is cheaper at $2.75 per million output tokens against $8.00 for GPT-4.1 - about 2.9x.
- When were GPT-4.1 and Kimi K2.5 released?
- GPT-4.1 was released 14 Apr 2025 by OpenAI. Kimi K2.5 was released 27 Jan 2026 by Moonshot AI.
Other head-to-heads
56Claude Opus 4.6 vs Kimi K2.531 shared evalsGemini 3.1 Pro Preview vs Kimi K2.530 shared evalsGPT-5.2 vs Kimi K2.529 shared evalsKimi K2.5 vs Qwen3.6 Plus29 shared evalsGPT-4.1 vs GPT-4.1 Mini28 shared evalsClaude Sonnet 4.5 vs Kimi K2.528 shared evalsGPT-4.1 vs GPT-528 shared evalsGPT-5.5 vs Kimi K2.528 shared evalsClaude Opus 4.8 vs Kimi K2.528 shared evalsGPT-5.4 vs Kimi K2.528 shared evalsClaude Opus 4.7 vs Kimi K2.528 shared evalsClaude Sonnet 4.6 vs Kimi K2.527 shared evalsClaude Opus 4.5 vs Kimi K2.526 shared evalsClaude Fable 5 vs Kimi K2.526 shared evalsGLM 5.1 vs Kimi K2.526 shared evalsGPT-5 Mini vs Kimi K2.525 shared evalsDeepSeek V3.2 vs Kimi K2.525 shared evalsGPT-5.4 Mini vs Kimi K2.525 shared evalsGrok 4.1 Fast vs Kimi K2.524 shared evalsClaude 4 Sonnet vs Kimi K2.523 shared evalsGPT-4.1 vs GPT-5 Mini22 shared evalsGPT-5 Nano vs Kimi K2.522 shared evalsGPT-4.1 vs GPT-4.1 Nano22 shared evalsGemini 2.5 Pro vs Kimi K2.521 shared evalsGPT-4.1 vs GPT-5 Nano20 shared evalsGLM 4.7 vs Kimi K2.520 shared evalsClaude Sonnet 4.5 vs GPT-4.119 shared evalsClaude 4 Sonnet vs GPT-4.119 shared evalsGPT-4.1 vs GPT-4o19 shared evalsGemini 2.5 Pro vs GPT-4.119 shared evalsgpt-oss-120b vs Kimi K2.519 shared evalsGPT-5 vs Kimi K2.518 shared evalsClaude Opus 4.5 vs GPT-4.116 shared evalsGPT-4.1 vs GPT-4o-mini16 shared evalsGPT-4.1 vs gpt-oss-120b16 shared evalsGPT-4.1 vs GPT-5.215 shared evalsDeepSeek V3.2 vs GPT-4.115 shared evalsGPT-4o vs Kimi K2.515 shared evalsGemini 3.1 Pro Preview vs GPT-4.113 shared evalsClaude Opus 4.6 vs GPT-4.113 shared evalsGPT-4.1 vs GPT-5.413 shared evalsGPT-4.1 vs Grok 4.1 Fast13 shared evalsGLM 4.7 vs GPT-4.113 shared evalsGPT-6 Astra vs Kimi K2.513 shared evalsGPT-4.1 Mini vs Kimi K2.512 shared evalsGPT-4.1 vs GPT-5.512 shared evalsClaude Sonnet 4.6 vs GPT-4.112 shared evalsGPT-4o-mini vs Kimi K2.512 shared evalsGPT-4.1 Nano vs Kimi K2.512 shared evalsClaude Opus 4.8 vs GPT-4.111 shared evalsGLM 5.1 vs GPT-4.111 shared evalsClaude Opus 4.7 vs GPT-4.111 shared evalsGPT-4.1 vs GPT-5.4 Mini11 shared evalsClaude Fable 5 vs GPT-4.110 shared evalsGPT-4.1 vs Qwen3.6 Plus10 shared evalsGPT-4.1 vs GPT-6 Astra5 shared evals
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