Readme

OpenAI o1 is the most powerful language model available in ChatGPT as of 2025, designed to solve the most complex and high-stakes problems in research, engineering, and beyond. Optimized for depth, accuracy, and reliability, o1 represents a new tier of research-grade intelligence — with o1 pro mode pushing the boundaries even further through higher compute and more deliberative reasoning.

Core Strengths

• Research-grade intelligence with cutting-edge performance
• Built for high-stakes tasks in law, medicine, data science, and engineering
• o1 pro mode enables deeper, more reliable thinking with extra compute
• Powers ChatGPT’s Pro experience for professionals and researchers
• Outperforms previous models (GPT-4o, GPT-4-turbo) on hard problems
• Evaluated using stricter reliability metrics (4/4 accuracy)

Model Performance

Competition Math (AIME 2024): 
- o1-preview: 50 
- o1: 78 
- o1 pro mode: 86 
Competition Code (Codeforces): 
- o1-preview: 62 
- o1: 89 
- o1 pro mode: 90 
PhD-Level Science (GPQA Diamond): 
- o1-preview: 74 
- o1: 76 
- o1 pro mode: 79 

Competition Math (AIME 2024): 
- o1-preview: 37 
- o1: 67 
- o1 pro mode: 80 
Competition Code (Codeforces): 
- o1-preview: 26 
- o1: 64 
- o1 pro mode: 75 
PhD-Level Science (GPQA Diamond): 
- o1-preview: 58 
- o1: 67 
- o1 pro mode: 74 

Use Cases

• Research-grade analysis in data science, law, and medicine
• Debugging and deep investigation in advanced software engineering
• Complex reasoning in math, science, and multimodal tasks
• Writing and validating technical content with 4/4 reliability
• High-compute applications that benefit from extra deliberation time