Model

OpenAI o3-mini (High)

CLOSED

OpenAI · o3 family · released Jan 31, 2025

Highest reasoning-effort setting: best accuracy of the o3-mini family, higher latency/cost per query.

ReasoningCodingVisionFunction callingTool useAgentic

1653.0

Elo · rank #93

Parameters

Undisclosed

Active params

—

Context

200K tokens

Architecture

Dense transformer reasoning model (size undisclosed)

License

Proprietary

Languages

—

API price (in/out)

$1.1 / $4.4

Modalities

text

Benchmark results

Bar shows position within the tracked field; marker = field best

AIMEMath87.3%#56

best: GPT-5.2 · 100.0%

CodeforcesCoding2130#13

best: DeepSeek-V4-Pro (Think Max) · 3206

DROPReasoning80.6#24

best: Hunyuan-T1 · 93.1

GDPval-AAAgents468#39

best: Claude Fable 5 · 1932

GPQA DiamondReasoning79.7%#82

best: GPT-5.6 · 94.6%

Humanity's Last ExamReasoning12.0%#79

best: Claude Sonnet 5 · 57.4%

HumanEvalCoding97.6%#2

best: Claude Opus 4.5 · 99.4%

IFBenchReasoning67.0%#28

best: MiniMax M3 · 83.0%

LiveCodeBenchCoding67.4%#75

best: DeepSeek-V4-Pro (Think Max) · 93.5%

MATH-500Math97.9%#10

best: GPT-5 · 99.4%

MGSMMath92.0%#4

best: OpenAI o4-mini · 93.7%

MMLUKnowledge86.9%#37

best: OpenAI o3 · 92.9%

SimpleQAKnowledge13.8%#28

best: GPT-4.5 · 62.5%

SWE-bench VerifiedCoding49.3%#90

best: Claude Fable 5 · 95.0%

Terminal-Bench 2.0Coding4.0%#62

best: GPT-5.6 · 88.8%

Run it locally

Closed weights — available via API only. No local deployment.

Input / M tok

$1.1

Output / M tok

$4.4

o3 family

Elo progression across releases

OpenAI o3-mini (High)Jan 20251653.0 OpenAI o3-mini (Low)Jan 20251334.3 OpenAI o3-mini (Medium)Jan 20251485.5 OpenAI o3Apr 20251926.8 OpenAI o3-proJun 20252103.6

Resources

DOCSdevelopers.openai.com/api/docs/models/o3-mini APIAvailable via OpenAI API

API price $1.1/$4.4 · each benchmark row carries its own source badge (see methodology)