Claude Opus 4.8 vs Gemini 2.5 Pro
Head to head on 20 shared benchmarks, with price, context window, and release dates.
Benchmark scores
55evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.8 Anthropic | 66.7% | 1835elo | 80.8 | 47.2% | 92.0% | 48.7% | 62.2% | 80.1% | 79.3% | 67.4% | 81.4% | 53.2% | 85.8% | 69.9% | 54.8% | 53.5% | 75.6% | 58.3% | 82.7% | 94.4% | - | - | - | - | 15.5% | 80.4% | 14.5% | 67.0% | - | - | 1281elo | 40.0% | 53.9% | 13.4% | 22.5% | 1890elo | 56.9% | 10.4% | 78.3% | 84.3% | 89.7% | - | - | 91.8% | - | - | 83.4% | 69.0% | - | - | 69.2% | 82.7% | 60.9% | 70.9% | - | 63.4% |
| Gemini 2.5 Pro Google (Alphabet Inc.) | 60.8% | 1419elo | 58.8 | 14.1% | 84.4% | 22.5% | 48.7% | 77.9% | 86.7% | 81.0% | 65.9% | 50.6% | 73.6% | 68.9% | 41.9% | 42.8% | 72.9% | 26.5% | 0.4% | 54.1% | 83.1% | 88.7% | 87.7% | 50.4% | - | - | - | - | 45.2% | 15.9% | - | - | - | - | - | - | - | - | - | - | - | 80.1% | 96.7% | - | 86.2% | 70.0% | - | - | 55.6 | 53.6% | - | - | - | - | 53.3% | 59.5% |
2 / 2 models
| Attribute | Claude Opus 4.8 Anthropic | Gemini 2.5 Pro Google (Alphabet Inc.) |
|---|---|---|
| Description | Claude Opus 4.8 (Adaptive Reasoning, Max Effort) 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 |
| License | - | proprietary |
| Released | 28 May 2026 | 5 Jun 2025 |
| Context | 1,000,000 | 1,048,576 |
| Input $/1M | $5.00 | $1.25 |
| Output $/1M | $25.00 | $10.00 |
| Cache read $/1M | $0.500 | $0.125 |
| Cache write $/1M | $6.250 | $0.375 |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text, image, file, audio, video |
| Providers | - | - |
| Publisher | Anthropic | Google (Alphabet Inc.) |
| Reported scores |
FAQ
- Is Claude Opus 4.8 or Gemini 2.5 Pro better?
- Across the 20 benchmarks both models report on Sophon, Claude Opus 4.8 leads on 18 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.8 and Gemini 2.5 Pro compare on GPQA Diamond?
- Claude Opus 4.8 scores 92.0% and Gemini 2.5 Pro scores 84.4% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.8 or Gemini 2.5 Pro?
- Gemini 2.5 Pro is cheaper at $10.00 per million output tokens against $25.00 for Claude Opus 4.8 - about 2.5x.
- When were Claude Opus 4.8 and Gemini 2.5 Pro released?
- Claude Opus 4.8 was released 28 May 2026 by Anthropic. Gemini 2.5 Pro was released 5 Jun 2025 by Google (Alphabet Inc.).
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