Models / GPT-5.6 Sol

GPT-5.6 Sol

OpenAI · gpt-5.6-sol Best value

Overview

Flagship GPT-5.6 model for coding and agentic work.

GPT-5.6 Sol is the flagship of OpenAI's GPT-5.6 series and the strongest general-purpose choice for command-line work, multi-step coding and tool-driven agents. Reasoning effort scales from none to max, so the same model serves both low-latency chat and deep analysis. It handles text, images and files across a 1.05-million-token context window.

Capabilities
Adjustable reasoning Tool calling Structured outputs Vision Document input Streaming Prompt caching Seed support

Call this model

curl https://open-gray.com/api/v1/chat/completions \
  -H "Authorization: Bearer sk-og-v1-..." \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.6-sol",
    "messages": [
      { "role": "user", "content": "Summarise our Q3 revenue drivers." }
    ]
  }'
Pass "stream": true for server-sent events.

Worked example

A request with a 20,000-token prompt and a 2,000-token answer on GPT-5.6 Sol:

Input 20,000 tokens10.00 cr
Output 2,000 tokens6.00 cr
Total charged16.00 cr / $0.16