Claude 3.5 Sonnet vs GPT-5
Head to head on 17 shared benchmarks, with price, context window, and release dates.
Benchmark scores
75evals · sort by any column, ⤢ to expand fullscreen
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| GPT-5 OpenAI | 88.0% | 94.6% | 95.0% | 61.1% | 57.7% | 1626elo | 72.8 | 32.4% | 86.2% | 25.3% | 84.6% | 99.4% | 87.1% | 65.5% | 42.9% | 74.4% | 73.4% | 46.7% | 91.1% | - | 0.0% | - | 0.15 | 0.0% | 68.1% | 4.58 | 80.0% | 80.0% | 91.7% | 0.0% | 88.9% | 83.3% | - | 100.0% | 48.9% | 73.1% | 83.4% | - | 58.2% | - | - | - | - | 37.5% | 0.52 | 1.62 | 100.0% | 0.0% | 92.7% | 92.7% | 49.6% | 83.7% | 93.3% | 10.0% | 0.0% | 60.0% | 0.26 | 0.0% | 18.0% | - | 43.7% | 74.9% | - | - | 2.34 | 32.6% | 87.5% | - | 0.86 | 20.1% | 54.8% | 90.0% | 90.0% | - | 84.8% | 61.8% |
| Claude 3.5 Sonnet Anthropic | 51.6% | 15.7% | 3.3% | 53.6% | 28.0% | 1451elo | 58.4 | 2.1% | 55.3% | 4.1% | 38.1% | 77.1% | 77.2% | 64.1% | 36.6% | 63.4% | 70.2% | - | - | 52.4% | - | 24.2% | - | - | - | - | - | - | - | - | - | - | 96.4 | - | - | - | - | 0.0% | - | 63.7% | 65.6% | 69.2% | 56.4% | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 0.0% | - | - | 51.3% | 25.3% | - | - | - | 0.98 | - | - | - | - | - | 62.6% | - | 42.7% |
2 / 2 models
| Attribute | Claude 3.5 Sonnet Anthropic | GPT-5 OpenAI |
|---|---|---|
| Description | Claude Sonnet 3.5 is an AI model from Anthropic. | OpenAI's August 2025 unified frontier model that auto-routes between a fast model and a deeper "thinking" variant. |
| Family | Claude | GPT 5 |
| Params | - | Undisclosed (closed) |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 22 Oct 2024 | 7 Aug 2025 |
| Context | 200,000 | 400,000 |
| Input $/1M | $3.00 | $1.25 |
| Output $/1M | $15.00 | $10.00 |
| Cache read $/1M | - | $0.125 |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image | text, image, file |
| Providers | - | openai |
| Publisher | Anthropic | OpenAI |
| Reported scores | MortgageTax64.1% Traveling Salesman0.98 (3 samples) SWE-bench Verified63.4% (SWE-bench) SWE-bench Lite51.3% (SWE-bench) SWE-bench Multimodal25.3% (SWE-bench) |
FAQ
- Is Claude 3.5 Sonnet or GPT-5 better?
- Across the 17 benchmarks both models report on Sophon, GPT-5 leads on 17 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
- How do Claude 3.5 Sonnet and GPT-5 compare on GPQA Diamond?
- Claude 3.5 Sonnet scores 55.3% and GPT-5 scores 86.2% on GPQA Diamond.
- Which is cheaper, Claude 3.5 Sonnet or GPT-5?
- GPT-5 is cheaper at $10.00 per million output tokens against $15.00 for Claude 3.5 Sonnet - about 1.5x.
- When were Claude 3.5 Sonnet and GPT-5 released?
- Claude 3.5 Sonnet was released 22 Oct 2024 by Anthropic. GPT-5 was released 7 Aug 2025 by OpenAI.
Other head-to-heads
56GPT-4.1 Mini vs GPT-541 shared evalsGPT-5 vs GPT-5 Mini36 shared evalsClaude Sonnet 4.5 vs GPT-531 shared evalsGPT-5 vs GPT-5 Nano28 shared evalsGPT-4.1 vs GPT-528 shared evalsClaude 4 Sonnet vs GPT-525 shared evalsGemini 2.5 Pro vs GPT-524 shared evalsGPT-5 vs GPT-5.223 shared evalsClaude Opus 4.5 vs GPT-523 shared evalsClaude 3.5 Sonnet vs GPT-4o22 shared evalsGPT-4.1 Nano vs GPT-521 shared evalsClaude 3.5 Sonnet vs Claude 4 Sonnet21 shared evalsClaude 3.5 Sonnet vs Gemini 2.5 Pro21 shared evalsGPT-5 vs Grok 4.1 Fast20 shared evalsClaude 3.5 Sonnet vs Claude Sonnet 4.519 shared evalsClaude 3.5 Sonnet vs GPT-5 Mini19 shared evalsGemini 3.1 Pro Preview vs GPT-519 shared evalsGPT-5 vs GPT-5.419 shared evalsClaude Opus 4.6 vs GPT-519 shared evalsGPT-5 vs Kimi K2.519 shared evalsGPT-4o vs GPT-519 shared evalsDeepSeek V3.2 vs GPT-519 shared evalsClaude 3.5 Sonnet vs GPT-4o-mini19 shared evalsGPT-5 vs GPT-5.518 shared evalsClaude 3.5 Sonnet vs GPT-4.118 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Mini17 shared evalsClaude Opus 4.8 vs GPT-517 shared evalsClaude Opus 4.7 vs GPT-517 shared evalsGPT-5 vs gpt-oss-120b17 shared evalsGLM 4.7 vs GPT-517 shared evalsClaude 3.5 Sonnet vs GPT-5 Nano17 shared evalsClaude 3.5 Sonnet vs GPT-5.217 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.517 shared evalsClaude 3.5 Sonnet vs DeepSeek V3.217 shared evalsClaude Fable 5 vs GPT-516 shared evalsGPT-4o-mini vs GPT-516 shared evalsGLM 5.1 vs GPT-516 shared evalsClaude Sonnet 4.6 vs GPT-516 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Nano16 shared evalsClaude 3.5 Sonnet vs gpt-oss-120b16 shared evalsGPT-5 vs Qwen3.6 Plus15 shared evalsClaude 3.5 Sonnet vs Kimi K2.515 shared evalsClaude 3.5 Sonnet vs Grok 4.1 Fast15 shared evalsClaude 3.5 Sonnet vs GLM 4.715 shared evalsClaude 3.5 Sonnet vs GPT-5.514 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.614 shared evalsClaude 3.5 Sonnet vs Gemini 3.1 Pro Preview13 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.813 shared evalsClaude 3.5 Sonnet vs GPT-5.413 shared evalsClaude 3.5 Sonnet vs GLM 5.113 shared evalsClaude 3.5 Sonnet vs Claude Sonnet 4.613 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.713 shared evalsGPT-5 vs GPT-6 Astra12 shared evalsClaude 3.5 Sonnet vs Claude Fable 512 shared evalsClaude 3.5 Sonnet vs Qwen3.6 Plus11 shared evalsClaude 3.5 Sonnet vs GPT-6 Astra6 shared evals
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