The o1 and o3 series models are specifically designed to tackle reasoning and problem-solving tasks with increased focus and capability. These models spend more time processing and understanding the user's request, making them exceptionally strong in areas like science, coding, math and similar fields. For example, o1 can be used by healthcare researchers to annotate cell sequencing data, by physicists to generate complicated mathematical formulas needed for quantum optics, and by developers in all fields to build and execute multi-step workflows.

• o1 added advanced image analysis capabilities with the new version. Enhance your prompts and context with images for additional insights.
• o3-mini follows o1 mini but adds the features supported by o1 like function calling and tools.
• Complex Code Generation: Capable of generating algorithms and handling advanced coding tasks to support developers.
• Advanced Problem Solving: Ideal for comprehensive brainstorming sessions and addressing multifaceted challenges.
• Complex Document Comparison: Perfect for analyzing contracts, case files, or legal documents to identify subtle differences.
• Instruction Following and Workflow Management: Particularly effective for managing workflows requiring shorter contexts.

• Supports both System message and the new Developer message to improve upgrade experience.
• Reasoning effort as in high, medium, and low. It controls whether the model thinks "less" or "more" in terms of applying cognitive reasoning.
• Structured outputs and functions/tools.
• Context window: 200K, Max Completion Tokens: 100K

• o3-mini: Now includes the o1 features with significant cost-efficiencies for scenarios requiring high performance.
• o1: The most capable model in the o1 series, offering enhanced reasoning abilities. Now generally available.
• o1-mini: A faster and more cost-efficient option in the o1 series, ideal for coding tasks requiring speed and lower resource consumption.

o1 model does not include all the features available in other models.