OpenAI

o3-mini

Complete specs, pricing, and benchmark data for o3-mini by OpenAI. Last verified 2026-04-20.

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Pricing

Input / 1M tokens

$1.10

Output / 1M tokens

$4.40

Context & Output

Context Window

128K

Max Output

65,536

TTFT

350ms

Speed

25 tok/s

Benchmarks

Arena ELO

1280

Coding ELO

1285

Reasoning ELO

1295

HumanEval

93

MMLU

86

MATH

84

GPQA

87

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Price History (Input $/M tokens)

Strengths
  • +Strong reasoning
  • +Good math skills
  • +Affordable reasoning
Limitations
  • -No streaming
  • -Slow inference

Best For

ReasoningMathGeneral Purpose

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