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GPT-4.1 Nano vs GPT-5

Head to head on 21 shared benchmarks, with price, context window, and release dates.

Benchmark scores

74

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Model
GPT-5

OpenAI

88.0%94.6%48.3%0.1561.1%1623elo72.832.4%68.6%6.6%45.0%54.3%86.1%82.0%65.5%37.8%73.4%12.9%90.0%90.0%0.0%46.7%91.1%0.0%--0.0%68.1%4.58---57.7%80.0%80.0%91.7%-0.0%88.9%83.3%100.0%--48.9%83.4%58.2%37.5%-0.521.62100.0%0.0%92.7%92.7%49.6%83.7%93.3%10.0%0.0%60.0%0.260.0%18.0%43.7%-74.9%74.4%2.34--87.5%0.8620.1%54.8%56.7%
GPT-4.1 Nano

OpenAI

8.9%23.7%24.0%1.5342.1%944elo32.41.0%51.2%3.8%32.0%32.6%84.8%65.7%52.8%25.9%60.8%3.8%68.0%68.0%17.3%---10.7%-0.17---3.3%0.0%42.5%----0.39----1.460.0%----10.8%----------------0.44---1.6439.8%----30.9%
2 / 2 models
AttributeGPT-4.1 Nano

OpenAI

GPT-5

OpenAI

DescriptionGPT-4.1 Nano is an AI model from OpenAI.OpenAI's August 2025 unified frontier model that auto-routes between a fast model and a deeper "thinking" variant.
FamilyGPTGPT 5
Params-Undisclosed (closed)
Open weightsclosedclosed
LicenseproprietaryProprietary
Released14 Apr 20257 Aug 2025
Context1,047,576400,000
Input $/1M$0.10-
Output $/1M$0.40-
Cache read $/1M$0.025$0.125
Cache write $/1M--
Speed0 tok/s0 tok/s
Latency0.00 s0.00 s
Modalitiesimage, text, filetext, image, file
Providers-openai
PublisherOpenAIOpenAI
Reported scores

FAQ

Is GPT-4.1 Nano or GPT-5 better?
Across the 21 benchmarks both models report on Sophon, GPT-5 leads on 19 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
How do GPT-4.1 Nano and GPT-5 compare on GPQA Diamond?
GPT-4.1 Nano scores 51.2% and GPT-5 scores 68.6% on GPQA Diamond.
When were GPT-4.1 Nano and GPT-5 released?
GPT-4.1 Nano was released 14 Apr 2025 by OpenAI. GPT-5 was released 7 Aug 2025 by OpenAI.

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