Strengths
- Achieves state-of-the-art results on coding and scientific benchmarks without custom scaffolds.
- Integrates multiple tools natively within its reasoning process including web search and Python execution.
- Supports complex multi-step reasoning across text, code, math, science, and visual inputs.
- Offers adjustable reasoning effort and full chain-of-thought access for debugging.
- Available to ChatGPT Plus, Team, and Pro users with API access.
Limitations
- o3-pro model has slower response times, potentially taking minutes per request.
- Streaming is not supported for the o3-pro variant.
- No support for fine-tuning or model distillation.
- Enterprise ChatGPT access for o3-mini has been delayed.