Overview

GPT-6.1 Sol arrived a week after GPT-6 Sol. OpenAI positions it close to GPT-6 Astra on agentic coding, computer use and professional work, at a much lower price. It is available in the API as gpt-6.1-sol and in ChatGPT Work and Codex.

Highlights

  • 1.05M-token context window (922K maximum input)
  • Up to 128K output tokens
  • Reasoning effort from low to max
  • Tools: functions, web search, file search, computer use
  • Knowledge cutoff April 30, 2026

Typical uses

Coding agents, computer-use automation and cost-sensitive professional workloads.

Things to consider

  • OpenAI’s system card treats it as Critical for cybersecurity capability under its Preparedness Framework, with matching safeguards.
  • Comparisons with Astra are OpenAI’s own.

Specifications are taken from the provider’s official announcement, documentation or model card. Benchmark results depend on evaluation settings; see how AI benchmarks work.