o3 Mini High

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

Strengths

Balances reasoning depth and speed with lower latency than o1-pro, supporting images and vision tasks alongside complex problem-solving.

Best for

STEM problems, research tasks, and reasoning workloads where extended thinking is needed but you want faster response times than o1-pro.

Limitations

Less suitable for tasks requiring the deepest reasoning or when you need the extended context windows (1M tokens) available in GPT-4.1 models.