GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Specifications
- Provider
- OpenAI
- Type
- Vendor / proprietary
- Modality
- text+image+file->text
- Context window
- 1050K
- Knowledge cutoff
- 2026-02-16
- Released
- July 9, 2026
Capabilities
Input: fileInput: imageInput: textOutput: textConfigurable reasoning effort
Strengths
include_reasoningmax_completion_tokensmax_tokensreasoningreasoning_effortresponse_formatseedstructured_outputstool_choicetools
