Claude Opus 4.8 vs GPT-4o
Head to head on 14 shared benchmarks, with price, context window, and release dates.
Benchmark scores
61evals · sort by any column, ⤢ to expand fullscreen
| Model | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Claude Opus 4.8 Anthropic | 66.7% | 47.2% | 92.0% | 48.7% | 62.2% | 80.1% | 79.3% | 67.4% | 81.4% | 69.9% | 53.5% | 75.6% | 58.3% | 94.4% | - | - | - | - | 15.5% | - | 80.4% | 14.5% | - | 62.0% | - | 1281elo | 1840elo | 80.8 | 40.0% | 53.9% | 13.4% | 22.5% | 1890elo | - | 56.9% | 10.4% | - | 78.3% | 84.3% | 89.7% | - | - | 91.8% | 53.2% | - | 85.8% | - | 83.4% | - | 69.0% | 54.8% | - | - | 69.2% | - | 82.7% | - | 55.1% | 70.9% | 82.7% | - | 63.1% |
| GPT-4o OpenAI | 45.9% | 0.3% | 54.3% | 2.4% | 34.3% | 55.1% | 46.1% | 70.1% | 49.0% | 57.4% | 33.3% | 74.5% | 8.3% | 25.1% | 18.2% | 15.0% | 6.0% | 38 | - | 0.0% | - | - | 0.33 | - | 6.1% | - | - | - | - | - | - | - | - | 96.1 | - | - | 0.0% | - | - | - | 30.9% | 75.9% | - | - | 10.8% | - | 74.8% | - | 54.0% | - | - | 5.71 | 21.6% | - | 61.2 | - | 0.98 | - | - | - | 32.5% | 33.4% |
2 / 2 models
| Attribute | Claude Opus 4.8 Anthropic | GPT-4o OpenAI |
|---|---|---|
| Description | Claude Opus 4.8 (Adaptive Reasoning, Max Effort) is an AI model from Anthropic. | GPT-4o is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | - | closed |
| License | - | proprietary |
| Released | 28 May 2026 | 20 Nov 2024 |
| Context | 1,000,000 | 128,000 |
| Input $/1M | $5.00 | $2.50 |
| Output $/1M | $25.00 | $10.00 |
| Cache read $/1M | $0.500 | $1.250 |
| Cache write $/1M | $6.250 | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image, file | text, image, file |
| Providers | - | - |
| Publisher | Anthropic | OpenAI |
| Reported scores | Taubench61.2 pass^1 GSM8K96.1 Accuracy ScholarSearch5.71 Social Sciences & Humanities (%) MortgageTax57.4% AIME202438 pass@1 |
FAQ
- Is Claude Opus 4.8 or GPT-4o better?
- Across the 14 benchmarks both models report on Sophon, Claude Opus 4.8 leads on 13 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude Opus 4.8 and GPT-4o compare on GPQA Diamond?
- Claude Opus 4.8 scores 92.0% and GPT-4o scores 54.3% on GPQA Diamond.
- Which is cheaper, Claude Opus 4.8 or GPT-4o?
- GPT-4o 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 GPT-4o released?
- Claude Opus 4.8 was released 28 May 2026 by Anthropic. GPT-4o was released 20 Nov 2024 by OpenAI.
Other head-to-heads
56Claude Opus 4.8 vs GPT-5.541 shared evalsClaude Fable 5 vs Claude Opus 4.840 shared evalsClaude Opus 4.8 vs Gemini 3.1 Pro Preview38 shared evalsClaude Opus 4.7 vs Claude Opus 4.830 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.629 shared evalsClaude Opus 4.6 vs Claude Opus 4.828 shared evalsClaude Opus 4.8 vs GPT-5.428 shared evalsClaude Opus 4.8 vs Kimi K2.528 shared evalsClaude Opus 4.8 vs GLM 5.127 shared evalsClaude Opus 4.8 vs GPT-5.226 shared evalsClaude Opus 4.8 vs GPT-5.4 Mini26 shared evalsClaude Opus 4.8 vs Claude Sonnet 4.525 shared evalsClaude Opus 4.8 vs Qwen3.6 Plus25 shared evalsClaude Opus 4.8 vs GPT-5 Mini24 shared evalsClaude Opus 4.5 vs Claude Opus 4.824 shared evalsClaude Opus 4.8 vs Grok 4.1 Fast24 shared evalsClaude Opus 4.8 vs GPT-5 Nano22 shared evalsClaude 4 Sonnet vs Claude Opus 4.822 shared evalsClaude Opus 4.8 vs DeepSeek V3.222 shared evalsGemini 2.5 Pro vs GPT-4o22 shared evalsClaude Sonnet 4.5 vs GPT-4o21 shared evalsClaude Opus 4.8 vs GLM 4.721 shared evalsGPT-4o vs GPT-4o-mini21 shared evalsGPT-4.1 Mini vs GPT-4o20 shared evalsGPT-4o vs GPT-5 Mini20 shared evalsClaude Opus 4.8 vs Gemini 2.5 Pro20 shared evalsClaude 4 Sonnet vs GPT-4o20 shared evalsGPT-4o vs GPT-519 shared evalsClaude Opus 4.8 vs GPT-6 Astra19 shared evalsGPT-4.1 vs GPT-4o19 shared evalsGPT-4o vs GPT-5 Nano18 shared evalsGPT-4o vs GPT-5.218 shared evalsClaude Opus 4.8 vs gpt-oss-120b18 shared evalsClaude Opus 4.5 vs GPT-4o18 shared evalsDeepSeek V3.2 vs GPT-4o18 shared evalsClaude Opus 4.8 vs GPT-517 shared evalsGPT-4o vs gpt-oss-120b17 shared evalsGPT-4.1 Nano vs GPT-4o16 shared evalsGPT-4o vs Grok 4.1 Fast16 shared evalsGLM 4.7 vs GPT-4o16 shared evalsGPT-4o vs GPT-5.515 shared evalsClaude Opus 4.6 vs GPT-4o15 shared evalsGPT-4o vs Kimi K2.515 shared evalsGemini 3.1 Pro Preview vs GPT-4o14 shared evalsGPT-4o vs GPT-5.414 shared evalsClaude Sonnet 4.6 vs GPT-4o14 shared evalsGLM 5.1 vs GPT-4o14 shared evalsClaude Opus 4.7 vs GPT-4o14 shared evalsGPT-4o vs Qwen3.6 Plus14 shared evalsGPT-4o vs GPT-5.4 Mini14 shared evalsClaude Fable 5 vs GPT-4o13 shared evalsClaude Opus 4.8 vs GPT-4o-mini12 shared evalsClaude Opus 4.8 vs GPT-4.1 Nano12 shared evalsClaude Opus 4.8 vs GPT-4.1 Mini11 shared evalsClaude Opus 4.8 vs GPT-4.111 shared evalsGPT-4o vs GPT-6 Astra4 shared evals
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