Claude 3.5 Sonnet vs GPT-5.2
Head to head on 17 shared benchmarks, with price, context window, and release dates.
Benchmark scores
56evals · sort by any column, ⤢ to expand fullscreen
| Model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GPT-5.2 OpenAI | 100.0% | 65.9% | 1703elo | 71.6 | 40.7% | 91.4% | 27.8% | 78.7% | 76.1% | 61.8% | 79.8% | 88.9% | 87.4% | 67.1% | 52.1% | 71.8% | 75.8% | - | - | 100 | - | - | 100.0% | 0.0% | 16.7% | 54.0% | 40.6% | 9.4% | - | - | 12.93 | 85.0% | 75.4% | 79.0% | - | 78.2% | 93.2% | 83.2% | 24.0% | - | 72.0% | 49.7% | 84.4% | 96.7 | 18.7% | 15.0% | - | 49.3% | - | 66.7% | - | 47.0% | - | 53.5% | - | 84.8% | 61.7% |
| Claude 3.5 Sonnet Anthropic | 3.3% | 53.6% | 1451elo | 58.4 | 2.1% | 55.3% | 4.1% | 63.7% | 65.6% | 69.2% | 56.4% | 38.1% | 77.2% | 64.1% | 36.6% | 63.4% | 70.2% | 51.6% | 15.7% | - | 52.4% | 24.2% | - | - | - | - | - | - | 28.0% | 96.4 | - | - | - | - | 0.0% | - | - | - | - | 77.1% | - | - | - | - | - | - | 0.0% | - | 51.3% | - | 25.3% | - | 0.98 | - | 62.6% | - | 42.7% |
2 / 2 models
| Attribute | Claude 3.5 Sonnet Anthropic | GPT-5.2 OpenAI |
|---|---|---|
| Description | Claude Sonnet 3.5 is an AI model from Anthropic. | GPT-5.2 is an AI model from OpenAI. |
| Family | Claude | GPT |
| Params | - | - |
| Open weights | closed | closed |
| License | proprietary | proprietary |
| Released | 22 Oct 2024 | 11 Dec 2025 |
| Context | 200,000 | 400,000 |
| Input $/1M | $3.00 | $1.75 |
| Output $/1M | $15.00 | $14.00 |
| Cache read $/1M | - | $0.175 |
| Cache write $/1M | - | - |
| Speed | 0 tok/s | 0 tok/s |
| Latency | 0.00 s | 0.00 s |
| Modalities | text, image | file, image, text |
| Providers | - | - |
| 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-5.2 better?
- Across the 17 benchmarks both models report on Sophon, GPT-5.2 leads on 16 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-5.2 compare on GPQA Diamond?
- Claude 3.5 Sonnet scores 55.3% and GPT-5.2 scores 91.4% on GPQA Diamond.
- Which is cheaper, Claude 3.5 Sonnet or GPT-5.2?
- GPT-5.2 is cheaper at $14.00 per million output tokens against $15.00 for Claude 3.5 Sonnet - about 1.1x.
- When were Claude 3.5 Sonnet and GPT-5.2 released?
- Claude 3.5 Sonnet was released 22 Oct 2024 by Anthropic. GPT-5.2 was released 11 Dec 2025 by OpenAI.
Other head-to-heads
56Claude Opus 4.5 vs GPT-5.235 shared evalsClaude Sonnet 4.5 vs GPT-5.232 shared evalsGPT-5 Mini vs GPT-5.232 shared evalsClaude Opus 4.6 vs GPT-5.230 shared evalsGPT-5.2 vs Kimi K2.530 shared evalsGPT-5.2 vs Grok 4.1 Fast30 shared evalsGemini 3.1 Pro Preview vs GPT-5.229 shared evalsGPT-5.2 vs GPT-5.429 shared evalsDeepSeek V3.2 vs GPT-5.229 shared evalsGPT-5.2 vs GPT-5.527 shared evalsGPT-5 Nano vs GPT-5.226 shared evalsClaude Opus 4.8 vs GPT-5.226 shared evalsClaude Opus 4.7 vs GPT-5.226 shared evalsClaude 4 Sonnet vs GPT-5.225 shared evalsGLM 5.1 vs GPT-5.225 shared evalsClaude Fable 5 vs GPT-5.224 shared evalsClaude Sonnet 4.6 vs GPT-5.224 shared evalsGemini 2.5 Pro vs GPT-5.224 shared evalsGLM 4.7 vs GPT-5.224 shared evalsGPT-5 vs GPT-5.223 shared evalsGPT-5.2 vs Qwen3.6 Plus23 shared evalsGPT-5.2 vs gpt-oss-120b22 shared evalsClaude 3.5 Sonnet vs GPT-4o22 shared evalsClaude 3.5 Sonnet vs Claude 4 Sonnet21 shared evalsClaude 3.5 Sonnet vs Gemini 2.5 Pro21 shared evalsClaude 3.5 Sonnet vs Claude Sonnet 4.519 shared evalsClaude 3.5 Sonnet vs GPT-5 Mini19 shared evalsClaude 3.5 Sonnet vs GPT-4o-mini19 shared evalsGPT-4o vs GPT-5.218 shared evalsClaude 3.5 Sonnet vs GPT-4.118 shared evalsGPT-4.1 Mini vs GPT-5.217 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Mini17 shared evalsClaude 3.5 Sonnet vs GPT-517 shared evalsClaude 3.5 Sonnet vs GPT-5 Nano17 shared evalsClaude 3.5 Sonnet vs Claude Opus 4.517 shared evalsClaude 3.5 Sonnet vs DeepSeek V3.217 shared evalsClaude 3.5 Sonnet vs GPT-4.1 Nano16 shared evalsClaude 3.5 Sonnet vs gpt-oss-120b16 shared evalsGPT-4.1 vs GPT-5.215 shared evalsGPT-4o-mini vs GPT-5.215 shared evalsGPT-4.1 Nano vs GPT-5.215 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 evalsGPT-5.2 vs GPT-6 Astra13 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 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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