model
o3
OpenAI's O3 model excels at complex multi-step reasoning tasks but is slower, making it ideal for accuracy-critical applications.
7.9Overall
Utility8
Onboarding7
Craft8
Niche fit7
Longevity9
Five dimensions scored independently; overall is a weighted average. Scores are only comparable within this same rubric.
Good for
Researchers and developers needing high-accuracy complex reasoning
Not for
Developers requiring real-time performance
Project description
OpenAI's reasoning model. Chain-of-thought for math, coding, science. Significantly better at complex multi-step problems. Slower but more accurate than GPT-5.4 on hard tasks.
Alternatives
GPT-4Claude 3Gemini 1.5