0

Claude Sonnet 4.6 vs GPT-5.4

Head to head on 28 shared benchmarks, with price, context window, and release dates.

Benchmark scores

46

evals · sort by any column, ⤢ to expand fullscreen

Model
Claude Sonnet 4.6

Anthropic

47.6%1.3565.3%78.0%1207elo1805elo79.932.4%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%76.351.5%78.9%87.1%47.2%--51.0%-----89.3--72.1%--50.6%60.6%62.8%
GPT-5.4

OpenAI

13.1%1.4765.3%81.0%1272elo1836elo78.347.6%74.8%11.3%48.4%78.5%82.0%77.5%79.3%70.2%82.6%94.1%88.1%68.3%56.0%43.3%47.1%74.0%37.9%8067.4%36.0%--34.1%9.0%-87.2%9206382.8%41.3%77.5%-8652.2%--0.6140.8--60.3%
2 / 2 models
AttributeClaude Sonnet 4.6

Anthropic

GPT-5.4

OpenAI

DescriptionClaude Sonnet 4.6 is an AI model from Anthropic.GPT-5.4 is an AI model from OpenAI.
FamilyClaudeGPT
Params--
Open weightsclosedclosed
Licenseproprietaryproprietary
Released17 Feb 20265 Mar 2026
Context1,000,0001,050,000
Input $/1M$3.00$2.50
Output $/1M$15.00$15.00
Cache read $/1M$0.300$0.250
Cache write $/1M$3.750-
Speed45 tok/s0 tok/s
Latency1.12 s0.00 s
Modalitiestext, image, filetext, image, file
Providers--
PublisherAnthropicOpenAI
Reported scores

FAQ

Is Claude Sonnet 4.6 or GPT-5.4 better?
Across the 28 benchmarks both models report on Sophon, GPT-5.4 leads on 18 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-5.4 compare on GPQA Diamond?
Claude Sonnet 4.6 scores 79.7% and GPT-5.4 scores 74.8% on GPQA Diamond.
When were Claude Sonnet 4.6 and GPT-5.4 released?
Claude Sonnet 4.6 was released 17 Feb 2026 by Anthropic. GPT-5.4 was released 5 Mar 2026 by OpenAI.

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