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GPT-5 nano (high)

New in 2026

Developed by OpenAI

API Pricing (per 1M tokens)

Input$0.05
Output$0.40

Intelligence Benchmarks

MMLU Pro78.0%
GPQA67.6%
Intelligence Index26.7
LivebenchN/A

Technical Specifications

Context Window400K Tokens
Vision SupportYes
Tokens per Second124
Time to First Token (s)136.94
Modalities
textimagefile->text