Claude Sonnet 4.6 vs Gemini 2.5 Pro
Head to head on 19 shared benchmarks, with price, context window, and release dates.
Benchmark scores
49evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Sonnet 4.6 Anthropic | 47.2% | 65.3% | 1805elo | 79.9 | 32.4% | 79.7% | 11.2% | 42.4% | 78.4% | 80.0% | 63.9% | 77.7% | 67.7% | 46.6% | 44.1% | 77.1% | 42.4% | 51.5% | 78.9% | 87.1% | - | - | - | 47.6% | 1.35 | 78.0% | - | - | 1207elo | 51.0% | 92.2% | 76.1% | 86.5% | 86.4% | - | - | - | - | - | 89.3 | - | 72.1% | 45.0% | - | - | 76.3 | 50.6% | 60.6% | - | 62.8% |
| Gemini 2.5 Pro Google (Alphabet Inc.) | 50.4% | 60.8% | 1419elo | 58.8 | 14.1% | 84.4% | 22.5% | 48.7% | 77.9% | 86.7% | 81.0% | 65.9% | 68.9% | 41.9% | 42.8% | 72.9% | 26.5% | 0.4% | 54.1% | - | 83.1% | 88.7% | 87.7% | - | - | - | 45.2% | 15.9% | - | - | - | - | - | - | 80.1% | 96.7% | 50.6% | 73.6% | 86.2% | - | 70.0% | - | - | 55.6 | 53.6% | - | - | - | 53.3% | 59.5% |
2 / 2 models
| Attribute | Claude Sonnet 4.6 Anthropic | Gemini 2.5 Pro Google (Alphabet Inc.) |
|---|---|---|
| Description | Claude Sonnet 4.6 is an AI model from Anthropic. | Gemini 2.5 Pro is an AI model from Google (Alphabet Inc.). |
| Family | Claude | Gemini |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 17 Feb 2026 | 5 Jun 2025 |
| Context | 1,000,000 | 1,048,576 |
| Input $/1M | $3.00 | $1.25 |
| Output $/1M | $15.00 | $10.00 |
| Cache read $/1M | $0.300 | $0.125 |
| Cache write $/1M | $3.750 | $0.375 |
| Speed | 45 tok/s | 0 tok/s |
| Latency | 1.12 s | 0.00 s |
| Modalities | text, image, file | text, image, file, audio, video |
| Providers | - | - |
| Publisher | Anthropic | Google (Alphabet Inc.) |
| Reported scores | GPQA Diamond79.7% (AA) Humanity's Last Exam (HLE)11.2% (AA) IFBench42.4% (AA) SciCode44.1% (AA) τ²-bench (Tau²-bench)78.9% (AA) |
FAQ
- Is Claude Sonnet 4.6 or Gemini 2.5 Pro better?
- Across the 19 benchmarks both models report on Sophon, Claude Sonnet 4.6 leads on 12 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Sonnet 4.6 and Gemini 2.5 Pro compare on GPQA Diamond?
- Claude Sonnet 4.6 scores 79.7% and Gemini 2.5 Pro scores 84.4% on GPQA Diamond.
- Which is cheaper, Claude Sonnet 4.6 or Gemini 2.5 Pro?
- Gemini 2.5 Pro is cheaper at $10.00 per million output tokens against $15.00 for Claude Sonnet 4.6 - about 1.5x.
- When were Claude Sonnet 4.6 and Gemini 2.5 Pro released?
- Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic. Gemini 2.5 Pro was released 5 Jun 2025 by Google (Alphabet Inc.).
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