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OpenAI

GPT-5 Nano

Tiny GPT-5 lane for routing, extraction, classification, and bulk jobs

Model facts

Context window
4K tokens
Maximum output
128K tokens
Cheapest paid input
$0.025 per 1M tokens
Cheapest paid output
$0.2 per 1M tokens
Open weights
no
Providers
32

Capabilities and modalities

reasoning, tool calling, structured output, attachments, temperature control, text, image, pdf.

Artificial Analysis benchmarks

Compare this model on the full LLM benchmark leaderboard.

ConfigurationAAICodingMathOutput tokens/s
high20.1not measured83.7not measured
medium19.2not measured78.3not measured
minimal7.8not measured27.3not measured

Observed price history

  • 2026-08-24: $0.025 input / $0.2 output per 1M tokens
  • 2026-08-28: $0.045 input / $0.36 output per 1M tokens
  • 2026-09-01: $0.025 input / $0.2 output per 1M tokens

API providers