OpenAIReasoningLIVE INDEX

o3 Mini High

Name: o3 Mini High
Brand: OpenAI
Price: 1.100000 USD

text+file->text

Cheaper reasoning model in the o3 generation. Strong on STEM, lower latency than full o3.

o3 Mini High is a reasoning AI model from OpenAI. It costs $1.100 per million input tokens and $4.400 per million output tokens (blended $2.090/M), with a 200,000-token context window.

Profile inherited from upstream o3-mini ↗ — this is a hosted variant of the same open-weights model.

Released Jan 2025Modalities textOfficial model page ↗Provider pricing ↗API docs ↗Pricing source ↗Compare with another model →Estimate monthly cost →

INPUT

$1.100/M

per million input tokens

OUTPUT

$4.400/M

per million output tokens

BLENDED 70/30

$2.090/M

unchanged since 3 May

default reference rate · how it is calculated →

CONTEXT

200,000

tokens

What it is good at

Cheap reasoning
STEM-tuned
Lower latency than o3

Typical use cases

Reasoning at scale
STEM tutoring
Cost-sensitive code review

Benchmarks

vs. best public score

Scores inherited from o3-mini — this is a hosted variant of the same open-weights model, so the underlying benchmark scores are identical.

MMLU86%

Multitask academic knowledge across 57 subjects.

GPQA Diamond79%

Graduate-level science questions, "Google-proof".

MATH95%

High-school competition math problems.

HumanEval92%

Python function synthesis from docstrings.

SWE-bench Verified49%

Real GitHub issues solved end-to-end.

LMArena Elo1305 Elo

Crowd-sourced head-to-head preference Elo rating.

Hand-curated from each provider's published reports and public leaderboards. Methodology varies across sources, treat as directional rather than authoritative.