OpenAI

o4-mini

Name: o4-mini
Author: OpenAI

Complete specs, pricing, and benchmark data for o4-mini by OpenAI. Last verified 2026-04-20.

JSON ModeFunctionsStreaming

Pricing

Input / 1M tokens

$1.10

Output / 1M tokens

$4.40

Context & Output

Context Window

128K

Max Output

32,768

TTFT

180ms

Speed

105 tok/s

Benchmarks

Arena ELO

1260

Coding ELO

1270

Reasoning ELO

1275

HumanEval

MMLU

MATH

GPQA

Start building with o4-mini

Price History (Input $/M tokens)

Strengths

Limitations

General PurposeReasoningCoding

Your ad here