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GPT 5 Nano Benchmarks - Performance Highlights | AI Stats

GPT 5 Nano

GPT 5 Nano

GPT 5 Nano

OpenAI

Overview Family Timeline Benchmarks Providers Quickstart Performance

Highlights

Top benchmark results for openai/gpt-5-nano-2025-08-07.

0.48#20

0.85#17

0.21#25

0.03#15

BrowseComp Long Context 128k

0.80#6

BrowseComp Long Context 256k

0.68#5

CharXiv-Reasoning

0.63#4

0.97#3

0.50#3

FActScore hallucination rate

0.07#4

0.10#4

0.71#36

Graphwalks bfs <128k

0.64#4

Graphwalks parents <128k

0.44#7

0.76#6

Humanity's Last Exam

0.09#19

LongFact-Concepts hallucination rate

0.01#2

LongFact-Objects hallucination rate

0.03#5

0.55#5

0.76#10

0.63#6

OpenAI-MRCR: 2 needle 128k

0.43#7

OpenAI-MRCR: 2 needle 256k

0.35#5

0.55#14

0.41#6

0.62#7

0.35#7

0.67#4

0.66#7

Detailed benchmark comparisons now live in the Compare tool.

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