o3
by OpenAI
Most advanced reasoning model with complete tool integration and visual perception capabilities. Achieves state-of-the-art performance on complex benchmarks including 71.7% on SWE-bench Verified and comprehensive support for multi-step problem solving.
- State-of-the-art reasoning achieving 71.7% SWE-bench Verified and 87.7% GPQA Diamond
- Complete tool integration with web search, file analysis, Python execution, and image generation
- Visual reasoning capabilities with advanced chain-of-thought processing for images and documents
- Multi-step problem solving excelling in mathematics, coding, science, and complex analysis
- Versatile application support ideal for technical writing and solving complex multi-step problems
Web Search
Search the web for current info.
JSON Mode
Output responses in valid JSON format.
Image Generator
Generate images from text prompts.
Model Information
Supported Formats
GPT 5.6 SolGPT-5.6 Sol is OpenAI's flagship model in the GPT-5.6 family, released July 9, 2026, for the most complex professional work spanning software engineering, long-horizon research, agentic tool use, and careful result refinement.
GPT 5.6 TerraGPT-5.6 Terra balances capability and cost efficiency for everyday production workloads in the GPT-5.6 family, released July 9, 2026.
GPT 5.6 LunaGPT-5.6 Luna is the fastest, most cost-optimized model in the GPT-5.6 family, released July 9, 2026, built for high-volume and latency-sensitive workloads.