o3-mini (High)
LegacyStandardo3-mini with reasoning effort set to high for maximum STEM accuracy.
Predecessor to o4-mini-high. Higher reasoning budget for complex problems.
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o3-mini (High) by OpenAI has a Capability Index of 73.9, making it comparable to the field average. It ranks #45 out of 92 models on the idapt capability leaderboard. o3-mini (High) is somewhat expensive at $1.10/M tokens input and $4.40/M tokens output. Cached input reads are priced at $0.55/M tokens, making repeated context cheaper. The model supports extended reasoning, a 200K context window.
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Compare with
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Mistral Small 4vs o3-mini (High)Frequently Asked Questions about o3-mini (High)▼
When was o3-mini (High) released?
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o3-mini (High) was released on February 12, 2025.
Who created o3-mini (High)?
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o3-mini (High) was created by OpenAI.
How capable is o3-mini (High)?
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o3-mini (High) has a Capability Index of 73.9/100, making it comparable to the field average. It ranks #45 out of 92 models.
How much does o3-mini (High) cost?
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o3-mini (High) costs $1.10/M input tokens and $4.40/M output tokens.
What is o3-mini (High) API pricing?
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The o3-mini (High) API is priced at $1.10 per million input tokens and $4.40 per million output tokens. You can access o3-mini (High) through idapt.app alongside 200+ other AI models in one workspace.
Is o3-mini (High) a reasoning model?
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Yes, o3-mini (High) is a reasoning model. It can think step-by-step through complex problems before providing an answer, often yielding better results on difficult tasks like math, coding, and multi-step logic.
Does o3-mini (High) support image or vision input?
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No, o3-mini (High) does not currently support image or vision input. It is a text-only model.
Does o3-mini (High) support audio?
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No, o3-mini (High) does not support audio input.
What is the context window of o3-mini (High)?
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o3-mini (High) has a context window of 200K tokens, meaning it can process approximately 150,000 words of context at once.
Is o3-mini (High) open source?
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o3-mini (High) is a proprietary model developed by OpenAI. The model weights and training data are not publicly available.
What is o3-mini (High) good at?
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Based on benchmark data, o3-mini (High) excels at: mathematical problem solving. It is OpenAI's capable model suitable for a wide range of tasks.
Where can I use o3-mini (High)?
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You can chat with o3-mini (High) on idapt.app — no separate API key required. idapt is an AI workspace with 200+ models, agents, computers, and tasks. You can also access o3-mini (High) through OpenAI's own API or platform.