O3 Mini

Overview

O3 Mini brings o-series reasoning to a smaller, more economical model. It is tuned for STEM problem solving, coding assistance, and structured outputs while retaining tool use and long-context handling. O3 Mini is a practical option when you need reliable reasoning but must stay within tighter latency or cost constraints.

Capabilities

• Reasoning-focused architecture for multi-step STEM tasks
• Structured output support for predictable schemas
• Tool and function calling for automation workflows
• Long-context inputs for large documents and codebases

Strengths

• Strong reasoning accuracy for its size and cost
• Reliable for coding, math, and data extraction
• Well suited for scaled agent workflows
• Predictable outputs with structured responses

Limitations and Considerations

• Less capable than full O3 on the hardest tasks
• Deep reasoning can still be slower than general chat models
• Best results require well-scoped prompts

Best Use Cases

O3 Mini is perfect for:

• Educational platforms teaching STEM subjects
• Code assistance and generation
• Mathematical tutoring systems
• Scientific data analysis
• Budget-conscious reasoning applications