Platform.

o3-pro Model

The o3-pro model represents OpenAI's most powerful reasoning model, delivering superior accuracy for complex problem-solving through extended compute time. Built on reinforcement learning principles, it thinks before responding to tackle the most challenging tasks in mathematics, coding, and scientific research.

Product Highlights

• Extended Reasoning: Uses significantly more compute than standard o3 for deeper analysis and consistently better answers
• 200K Context Window: Process up to 200,000 tokens of context for comprehensive document understanding
• Multimodal Input: Accept both text and image inputs for versatile problem-solving scenarios
• Responses API Integration: Purpose-built for the Responses API with multi-turn interaction capabilities
• Background Mode Support: Designed for long-running tasks with built-in background processing options

Use Cases

• Complex Mathematical Proofs: Solve advanced mathematics and formal logic problems requiring step-by-step verification
• Scientific Research Analysis: Process extensive research papers, synthesize findings, and identify novel connections
• Code Architecture Design: Design complex software systems with thorough consideration of edge cases and scalability
• Strategic Business Planning: Analyze multi-faceted business scenarios with deep causal reasoning

Target Audience

Ideal for enterprise research teams, AI-native startups, and technical professionals who prioritize answer quality over response speed. Best suited for organizations solving high-stakes problems where accuracy is paramount.