OpenAI o1OpenAI's reasoning-focused model built for complex, multi-step problem solving.
Overview
Key features
- Chain-of-thought style internal reasoning
- Advanced math and coding problem solving
- API access for developer integration
- Available in ChatGPT for Plus and Pro users
- Improved benchmark scores on STEM tasks
- Suited for complex, multi-step prompts
Pricing
- Model
- Free
- Category
- LLM
- Rating
- 4.8 / 5 (4)
Use cases
Solve Advanced Math Problems
Work through complex mathematical proofs, equations, and quantitative problems that require multi-step deliberation rather than quick pattern matching.
Competitive Coding Assistance
Tackle intricate algorithmic challenges and debugging tasks where chain-of-thought reasoning helps produce more reliable solutions than standard chat models.
Scientific Analysis and Research
Support researchers in reasoning through STEM problems, hypothesis evaluation, and technical workflows that benefit from deeper deliberation.
Logical Puzzle and Decision Workflows
Integrate via the OpenAI API into developer workflows that require multi-step logical reasoning, such as planning, structured analysis, or complex prompt chains.
Pros & Cons
Pros
- Strong performance on math, science, and coding tasks
- Handles multi-step reasoning more reliably than prior models
- Available in both ChatGPT and the API
- Useful for research and technical workflows
Cons
- Slower responses than standard chat models
- Higher token cost per query
- Overkill for simple or conversational tasks
- Limited tool and multimodal support compared to GPT-4o
Reviews
Average from 4 ratings.
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Years in this space
I've evaluated a lot of these over the years. What stands out here is advanced math and coding problem solving — handled better than most — and useful for research and technical workflows. Worth the time if this is your use case.
Use it every day
Honestly didn't expect to like it this much. API access for developer integration is exactly what I needed, and useful for research and technical workflows. but I reach for it almost every day now and it just clicks.
Skeptical, then convinced
I went in skeptical — most tools in this space overpromise. It actually delivers on suited for complex, multi-step prompts, and available in both ChatGPT and the API caught me off guard. Overkill for simple or conversational tasks is why this isn't a perfect score, still, I'd recommend giving it a real trial.
Skeptical, then convinced
I went in skeptical — most tools in this space overpromise. It actually delivers on aPI access for developer integration, and strong performance on math, science, and coding tasks caught me off guard. still, I'd recommend giving it a real trial.
Q&A
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