GPT-4o-mini vs Kimi K2.5
Head to head on 12 shared benchmarks, with price, context window, and release dates.
Benchmark scores
61evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Kimi K2.5 Moonshot AI | 68.3% | 1576elo | 78.9% | 13.2% | 43.7% | 72.5% | 77.9% | 57.4% | 77.7% | 66.5% | 39.6% | 74.2% | - | - | - | - | 96.1 | - | - | - | 39.0% | - | 74.9 | 35.8% | 27.9% | - | - | - | 95.4 | 78.5% | 10421 | - | 61.4% | 84.9% | 76.0% | - | - | 62.0% | 39.3% | - | 76.4% | 87.1 | - | - | 63.3% | 49.9% | - | 73 | 67.3% | 70.8% | - | 18.9% | 69.4 | - | 26.3% | 17.5% | - | - | - | - | 81.3% | 56.8% |
| GPT-4o-mini OpenAI | 45.5% | 871elo | 42.6% | 4.2% | 31.0% | 47.2% | 43.0% | 65.8% | 32.9% | 54.5% | 22.9% | 60.5% | 16.7% | 3.6% | 11.7% | 14.7% | - | 50.7% | 0.29 | 0.0% | - | 0.0% | - | - | - | 0.0% | 1.54 | 0.0% | - | - | - | 72.0% | - | - | - | 23.4% | 78.9% | - | - | 62.8% | - | - | 64.8% | 78.0% | - | - | 3.81 | - | - | - | 100.0% | - | - | 0.36 | - | - | 0.78 | 83.3% | 54.5% | 22.5% | - | 39.6% |
2 / 2 models
| Attribute | GPT-4o-mini OpenAI | Kimi K2.5 Moonshot AI |
|---|---|---|
| Description | GPT-4o Mini is an AI model from OpenAI. | Kimi K2.5 is an AI model from Kimi. |
| Family | GPT | Kimi |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | Modified MIT |
| Released | 18 Jul 2024 | 27 Jan 2026 |
| Context | 128,000 | 262,144 |
| Input $/1M | $0.15 | $0.60 |
| Output $/1M | $0.60 | $3.00 |
| Cache read $/1M | $0.075 | $0.100 |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text, image |
| Providers | - | - |
| Publisher | OpenAI | Moonshot AI |
| Reported scores | GPQA Diamond78.9% (AA) Humanity's Last Exam (HLE)13.2% (AA) IFBench43.7% (AA) SciCode39.6% (AA) τ²-bench (Tau²-bench)81.3% (AA) |
FAQ
- Is GPT-4o-mini 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-4o-mini and Kimi K2.5 compare on GPQA Diamond?
- GPT-4o-mini scores 42.6% and Kimi K2.5 scores 78.9% on GPQA Diamond.
- Which is cheaper, GPT-4o-mini or Kimi K2.5?
- GPT-4o-mini is cheaper at $0.60 per million output tokens against $3.00 for Kimi K2.5 - about 5.0x.
- When were GPT-4o-mini and Kimi K2.5 released?
- GPT-4o-mini was released 18 Jul 2024 by OpenAI. Kimi K2.5 was released 27 Jan 2026 by Moonshot AI.
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