0

Claude Sonnet 4.6 vs GPT-5.2

Head to head on 24 shared benchmarks, with price, context window, and release dates.

Benchmark scores

54

evals · sort by any column, ⤢ to expand fullscreen

Model
Claude Sonnet 4.6

Anthropic

65.3%78.0%1805elo79.932.4%79.7%11.2%42.4%92.2%78.4%80.0%76.1%63.9%77.7%86.5%86.4%67.7%45.0%46.6%44.1%77.1%42.4%51.5%78.9%87.1%--47.2%47.6%---1.35--1207elo51.0%--------89.3-72.1%---76.350.6%60.6%62.8%
GPT-5.2

OpenAI

65.9%60.0%1699elo71.640.7%71.2%8.0%47.4%79.0%78.7%76.1%78.2%61.8%79.8%93.2%83.2%67.1%15.0%49.3%40.4%75.8%31.8%53.5%46.5%-51.0%100--100.0%0.0%16.7%-40.6%9.4%--12.9385.0%66.9%24.0%72.0%49.7%84.4%81.4%-96.7-18.7%66.7%71.8%---56.3%
2 / 2 models
AttributeClaude Sonnet 4.6

Anthropic

GPT-5.2

OpenAI

DescriptionClaude Sonnet 4.6 is an AI model from Anthropic.GPT-5.2 is an AI model from OpenAI.
FamilyClaudeGPT
Params--
Open weightsclosedclosed
Licenseproprietaryproprietary
Released17 Feb 202611 Dec 2025
Context1,000,000400,000
Input $/1M$3.00$1.75
Output $/1M$15.00$14.00
Cache read $/1M$0.300$0.175
Cache write $/1M$3.750-
Speed45 tok/s0 tok/s
Latency1.12 s0.00 s
Modalitiestext, image, filefile, image, text
Providers--
PublisherAnthropicOpenAI
Reported scores

FAQ

Is Claude Sonnet 4.6 or GPT-5.2 better?
Across the 24 benchmarks both models report on Sophon, Claude Sonnet 4.6 leads on 15 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
How do Claude Sonnet 4.6 and GPT-5.2 compare on GPQA Diamond?
Claude Sonnet 4.6 scores 79.7% and GPT-5.2 scores 71.2% on GPQA Diamond.
Which is cheaper, Claude Sonnet 4.6 or GPT-5.2?
GPT-5.2 is cheaper at $14.00 per million output tokens against $15.00 for Claude Sonnet 4.6 - about 1.1x.
When were Claude Sonnet 4.6 and GPT-5.2 released?
Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic. GPT-5.2 was released 11 Dec 2025 by OpenAI.

Comparing something else? Build your own side-by-side.