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GPT-5 nano (medium)
New in 2026
Developed by
OpenAI
API Pricing (per 1M tokens)
Input
$0.05
Output
$0.40
Intelligence Benchmarks
MMLU Pro
77.2%
GPQA
67.0%
Intelligence Index
25.7
Livebench
N/A
Technical Specifications
Context Window
400K Tokens
Vision Support
Yes
Tokens per Second
132
Time to First Token (s)
46.58
Modalities
text
image
file->text