o3 Deep Research
OpenAI · Multimodal · Released Oct 2025
o3 Deep Research is OpenAI's extended reasoning model designed for comprehensive research and analysis tasks with a 200k token context window.
- Strengths
- The model excels at deep analytical work, multi-step reasoning, and synthesizing information across long documents, leveraging extended thinking capabilities for thorough problem-solving.
- Best for
- Research-heavy workloads, literature reviews, complex analysis, and tasks requiring sustained reasoning over large document sets.
- Limitations
- The 200k context window is smaller than the 400k available in newer general-purpose models like GPT-5.1, and it is specialized for reasoning tasks rather than general-purpose use.
Input / 1M
$10.00
Output / 1M
$40.00
Cached input / 1M
$2.50
Context window
200K
Price history
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 11 Jun 2026 | $10.00 | $40.00 | $2.50 | Imported from OpenRouter | openrouter.ai |