Gemini 3.5 Flash vs Kimi K2.5
Head to head on 26 shared benchmarks, with price, context window, and release dates.
Benchmark scores
40evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Gemini 3.5 Flash Google (Alphabet Inc.) | 64.7% | 26.0% | 71.8 | 57.9% | 39.0% | 92.2% | 42.7% | 76.3% | 78.9% | 78.2% | 64.9% | 75.6% | 84.6% | 88.2% | 82.0% | 76.3% | 55.8% | 76.6% | 68.1% | 49.9% | 53.1% | 74.4% | 40.9% | 53.1% | 48.7% | 95.3% | - | 1087elo | - | - | - | - | - | - | 31.0% | - | - | - | - | 62.9% | 64.3% |
| Kimi K2.5 Moonshot AI | 68.3% | 39.0% | 74.9 | 35.8% | 27.9% | 87.9% | 30.7% | 70.2% | 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% | 74.2% | 34.8% | 26.3% | 17.5% | 95.9% | 96.1 | - | 1576elo | 95.4 | 78.5% | 10421 | 87.1 | 63.3% | - | 73 | 67.3% | 70.8% | 69.4 | - | 60.0% |
2 / 2 models
| Attribute | Gemini 3.5 Flash Google (Alphabet Inc.) | Kimi K2.5 Moonshot AI |
|---|---|---|
| Description | Gemini 3.5 Flash is an AI model from Google (Alphabet Inc.). | Kimi K2.5 is an AI model from Kimi. |
| Family | Gemini | Kimi |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | Modified MIT |
| Released | 19 May 2026 | 27 Jan 2026 |
| Context | 1,048,576 | 262,144 |
| Input $/1M | $1.50 | $0.60 |
| Output $/1M | $9.00 | $3.00 |
| Cache read $/1M | $0.150 | $0.070 |
| Cache write $/1M | $0.083 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, video, file, audio | text, image |
| Providers | - | - |
| Publisher | Google (Alphabet Inc.) | Moonshot AI |
| Reported scores | Humanity's Last Exam (HLE)42.7% (AA) τ²-bench (Tau²-bench)95.3% (AA) Terminal-Bench (Hard)40.9% (AA) Vals Index53.1% | 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 Gemini 3.5 Flash or Kimi K2.5 better?
- Across the 26 benchmarks both models report on Sophon, Gemini 3.5 Flash leads on 22 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Gemini 3.5 Flash and Kimi K2.5 compare on GPQA Diamond?
- Gemini 3.5 Flash scores 92.2% and Kimi K2.5 scores 87.9% on GPQA Diamond.
- Which is cheaper, Gemini 3.5 Flash or Kimi K2.5?
- Kimi K2.5 is cheaper at $3.00 per million output tokens against $9.00 for Gemini 3.5 Flash - about 3.0x.
- When were Gemini 3.5 Flash and Kimi K2.5 released?
- Gemini 3.5 Flash was released 19 May 2026 by Google (Alphabet Inc.). Kimi K2.5 was released 27 Jan 2026 by Moonshot AI.
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