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openai/o3-mini-high
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o3 Mini High

OpenAI o3-mini-high is the same model as [o3-mini](/openai/o3-mini) with reasoning_effort set to high. o3-mini is a cost-efficient language model optimized for STEM reasoning tasks, particularly excelling in science, mathematics, and coding. The model features three adjustable reasoning effort levels and supports key developer capabilities including function calling, structured outputs, and streaming, though it does not include vision processing capabilities. The model demonstrates significant improvements over its predecessor, with expert testers preferring its responses 56% of the time and noting a 39% reduction in major errors on complex questions. With medium reasoning effort settings, o3-mini matches the performance of the larger o1 model on challenging reasoning evaluations like AIME and GPQA, while maintaining lower latency and cost.

2/12/2025
200,000 tokens
#135 Text (Math)

Specifications

Modalities

Input
text
file
Output
text

Supported Parameters

max_tokens
response_format
seed
structured_outputs
tool_choice
tools

Max Output Tokens

100,000

Reasoning Configuration

Default
Thinking on (effort: high)
Selectable effort levels
high
Turning thinking off
Not possible (always thinks)

How to control thinking, and what it costs

Frequently asked questions

Is o3 Mini High available on FastMetal?
Not at the moment. GPT-5.6 Sol, from the same lab, is available on the FastMetal API today.
What is the context window of o3 Mini High?
200,000 tokens, shared between the prompt and the response.
How does o3 Mini High rank?
#141 on the public arena's Japanese board (ELO 1,316). Ranks move as the leaderboard is updated.

Leaderboard

Text
OverallELO: 1,363
#189
JapaneseELO: 1,316
#141
ChineseELO: 1,412
#159
KoreanELO: 1,331
#141
EnglishELO: 1,379
#191
frenchELO: 1,371
#173
germanELO: 1,325
#179
spanishELO: 1,347
#186
russianELO: 1,328
#213
CodingELO: 1,435
#161
MathELO: 1,405
#135
Creative WritingELO: 1,311
#204
Instruction FollowingELO: 1,366
#174
Hard PromptsELO: 1,401
#170
Multi-TurnELO: 1,345
#201