Models·OpenAI

GPT-5 Nano (batch)

openai/gpt-5-nano:batch

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

$0.025Input, per million tokens
$0.20Output, per million tokens
400KContext window
128KLongest answer

400K tokens of context — about 300,000 words, on a scale that ends at 2M.

What it can do

  • Reasoning
  • Vision
  • Tool use
  • Takes text
  • Takes image
  • Takes file
  • Gives text

Released 7 Aug 2025 · checked 3 Oct 2026.

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