o1 is OpenAI's original reasoning model, the first to demonstrate chain-of-thought capabilities at scale. While newer models like o3 have surpassed it, o1 remains a solid choice for reasoning tasks at a lower cost point.
Key Features
Pioneer chain-of-thought reasoning model
Strong analytical capabilities
Proven reliability across diverse reasoning tasks
128K token context window
Ideal Use Cases
1.
Mathematical problem solving
2.
Logical analysis and deduction
3.
Coding challenges requiring reasoning
4.
Educational step-by-step explanations
Example Prompts for o1
Technical Specifications
| Context Window | 128K tokens |
| Modality | Text → Text |
| Provider | OpenAI |
| Category | Reasoning |
| Max Output | 32K tokens |
| Status | Production stable |
Frequently Asked Questions
Try o1 now
Start using o1 instantly — 100 free credits, no credit card required. Access 750+ AI models through one platform.