o3 Mini High

o3 Mini High is OpenAI's cost-effective reasoning model with extended chain-of-thought processing, multimodal input support, and a 200k token context window.

Strengths

Handles complex reasoning tasks and visual input while maintaining lower computational overhead than the full o3 lineup.

Best for

Problems requiring structured reasoning and planning with image analysis, where the o4-mini High is the newer standard but o3 Mini High remains available.

Limitations

Smaller and slower than o3 Pro, and has been superseded by o4-mini High for new projects.