OpenAI

o3-mini

Complete specs, pricing, and benchmark data for o3-mini by OpenAI. Last verified 2026-04-03.

JSON ModeFunctionsStreamingCode Exec
Pricing

Input / 1M tokens

$1.10

Output / 1M tokens

$4.40

Cached Input / 1M

$0.550

Context & Output

Context Window

200K

Max Output

100,000

TTFT

1500ms

Speed

55 tok/s

Benchmarks

Arena ELO

1310

Coding ELO

1340

Reasoning ELO

1350

HumanEval

92.8

MMLU

87.3

MATH

90.2

GPQA

70.5

Price History (Input $/M tokens)

Strengths
  • +Strong mathematical reasoning
  • +Good coding performance
  • +Affordable reasoning model
  • +Large output window
Limitations
  • -Higher latency than non-reasoning models
  • -No vision support
  • -Superseded by o4-mini

Best For

ReasoningMathCodingScience

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