GPT-6 Sol
GPT-6 Sol is the GPT-6 workhorse tier for complex coding and agent workflows, released alongside Luna. It combines a long context with image understanding and reasoning effort from none to max. Responses provides its built-in tools, while Chat Completions function calling requires reasoning to be disabled. GPT-6.1 Sol is a subsequent distinct weight update.
2026-09-22
Unreleased
Undisclosed proprietary architecture
Proprietary
Specifications
- Parameters
- Unreleased
- Architecture
- Undisclosed proprietary architecture
- License
- Proprietary
- Context Window
- 1,050,000 tokens
- Max Output
- 128,000 tokens
- Training Data Cutoff
- Apr 20, 2026
- Type
- multimodal
- Modalities
- textimage
Benchmark Scores
Advanced Specifications
- Model Family
- GPT-6
- API Access
- Available
- Chat Interface
- Not Available
- Variants
- gpt-6-sol
Capabilities & Limitations
- Capabilities
- reasoningagentic codingcomputer usevisiontool use
- Known Limitations
- Can produce incorrect factual claims or code; important results require independent verification.Chat Completions function calling requires reasoning_effort none; use Responses for tools with reasoning.
- Notable Use Cases
- professional codingagent workerslong-context analysis
- Function Calling Support
- Yes
- Tool Use Support
- Yes