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Dashboard Benchmarks Models ECI Data About

GPT-5 nano

The smallest version of OpenAI’s latest flagship frontier model, benchmarked using high reasoning effort.

Release date
2025-08-07
Developer
OpenAI
Accessibility
Non-open weights
140
Epoch Capabilities Index
RANK:
ECI is a composite metric based on over 45 benchmarks. Learn more.
Reasoning
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