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OpenAI

o1

O-series reasoning model for hard analysis, math, coding, and planning

Model facts

Context window
2K tokens
Maximum output
1K tokens
Cheapest paid input
$14 per 1M tokens
Cheapest paid output
$54 per 1M tokens
Open weights
no
Providers
14

Capabilities and modalities

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

Artificial Analysis benchmarks

Compare this model on the full LLM benchmark leaderboard.

ConfigurationAAICodingMathOutput tokens/s
default23.939.7not measurednot measured

Observed price history

  • 2026-08-24: $7.5 input / $30 output per 1M tokens
  • 2026-08-28: $14 input / $54 output per 1M tokens

API providers