“Built for the toughest questions, designed to think more and explain better.”The Essentials: o3 Deep Research is OpenAI’s specialized model for complex reasoning and exploration. Unlike quick-response models, o3 is built to take its time—thinking step by step and delivering structured, well-supported answers that go far beyond the surface. Why It Stands Out:
- Trained for deep reasoning and exploration, perfect for hard or high-stakes questions.,
- Produces responses with clear structures, references, and multiple perspectives.,
- Excels in complex, nuanced prompts where context and accuracy are critical.,
- Transparent about uncertainty, showing where evidence is strong and where it’s limited.,
Where It Shines:
- Research & learning → breaks down advanced topics in science, philosophy, law, and history.
- Critical thinking → explores alternative viewpoints and helps see problems from new angles.
- Complex writing → builds essays, reports, and detailed explanations with clarity.
- Problem-solving → follows reasoning step by step, making the thought process visible.
Numbers That Matter:
- GPQA Diamond (graduate-level science) → 71.5%, among the strongest reasoning models.
- ARC-AGI (general intelligence test) → far above GPT-4, showing real advances in step-by-step reasoning.
- Far less prone to hallucinations in multi-step logic and fact-heavy prompts.
Important Note
o3 Deep Research is a high-computation, high-cost model. Each session may take minutes to process and generate results. To avoid unexpected costs, it’s best to use this model only when truly necessary — for the hardest, most strategic questions where depth matters more than speed or price.