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GPT-5.6 Sol reasoning model ships

July 9, 2026Release NotesView original ↗
1 featureThis release1 featureNew capabilitiesAI-tallied from the release notes

Beginning rollout of GPT-5.6 Sol in ChatGPT, the flagship reasoning model for complex work across coding, research, science, cybersecurity, computer use, and design.

Key improvements:

  • Smarter problem-solving in STEM and coding
  • Enhanced instruction-following and formatting accuracy
  • "Fuzzy" improvements

Available to eligible paid ChatGPT plans. Free, Go, and logged-out users are not included. Availability may vary during rollout.

Fetched July 10, 2026

GPT-5.6 Sol reasoning model ships — Release Notes — releases.sh