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Claude 4 Sonnet vs GPT-5.2

Head to head on 25 shared benchmarks, with price, context window, and release dates.

Benchmark scores

58

evals · sort by any column, ⤢ to expand fullscreen

Model
GPT-5.2

OpenAI

51.0%65.9%1699elo71.671.2%8.0%47.4%78.7%76.1%78.2%61.8%79.8%93.2%83.2%66.9%49.7%84.4%81.4%67.1%49.3%40.4%71.8%75.8%31.8%46.5%-100-100.0%0.0%16.7%-60.0%40.6%9.4%-40.7%-12.9385.0%79.0%24.0%-72.0%-96.7-18.7%15.0%---66.7%--53.5%--56.3%
Claude 4 Sonnet

Anthropic

38.0%54.7%1480elo58.468.3%4.3%45.4%64.8%77.5%54.6%44.3%72.9%70.5%69.0%44.9%33.9%72.4%83.7%62.5%35.0%37.3%74.6%69.6%27.3%52.3%40.7%-22.9%---47.8%---19.8%-67.5%----93.4%-86.7%-43.9%--6.186.1858.3%-35.6%0.59-84.0%84.0%55.5%
2 / 2 models
AttributeClaude 4 Sonnet

Anthropic

GPT-5.2

OpenAI

DescriptionClaude 4 Sonnet is an AI model from Anthropic.GPT-5.2 is an AI model from OpenAI.
FamilyClaudeGPT
Params--
Open weightsclosedclosed
Licenseproprietaryproprietary
Released22 May 202511 Dec 2025
Context200,000400,000
Input $/1M$3.00$1.75
Output $/1M$15.00$14.00
Cache read $/1M-$0.175
Cache write $/1M--
Speed0 tok/s0 tok/s
Latency0.00 s0.00 s
Modalitiestext, imagefile, image, text
Providers--
PublisherAnthropicOpenAI
Reported scores

FAQ

Is Claude 4 Sonnet or GPT-5.2 better?
Across the 25 benchmarks both models report on Sophon, GPT-5.2 leads on 21 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
How do Claude 4 Sonnet and GPT-5.2 compare on GPQA Diamond?
Claude 4 Sonnet scores 68.3% and GPT-5.2 scores 71.2% on GPQA Diamond.
Which is cheaper, Claude 4 Sonnet or GPT-5.2?
GPT-5.2 is cheaper at $14.00 per million output tokens against $15.00 for Claude 4 Sonnet - about 1.1x.
When were Claude 4 Sonnet and GPT-5.2 released?
Claude 4 Sonnet was released 22 May 2025 by Anthropic. GPT-5.2 was released 11 Dec 2025 by OpenAI.

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