o3 (batch)

OpenAI's frontier reasoning model that applies extended chain-of-thought processing across broad problem domains.

Strengths

Handles complex reasoning tasks in math, science, coding, and visual analysis through structured problem-solving, with strong performance on technical writing and instruction-following.

Best for

Problems requiring multi-step reasoning in technical domains where accuracy over latency matters, including research, analysis, and complex code generation.

Limitations

Slower than standard models due to chain-of-thought processing; for time-sensitive applications or simple classification tasks, a faster non-reasoning model is more suitable — o3-pro is available for problems demanding higher computational budgets.