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OpenAI updates GPT-5.6 Sol in Chat while leaving Work and Codex unchanged
OpenAI says Plus and Pro users gain an updated Sol version and reasoning-effort slider in ChatGPT Chat, explicitly separating the rollout from Work and Codex.
Overview
OpenAI announced an updated GPT-5.6 Sol version for the ChatGPT Chat experience, with access for Plus and Pro users and a reasoning-effort slider. The company explicitly says the versions powering Work and Codex are unchanged, so the announcement does not support inferring a model update in those products.
Why it matters
Separating model versions by product surface helps users understand why behavior may change in Chat without changing Work or Codex.
The announcement does not establish rollout completeness, regional availability, detailed model changes, or independent performance results.
Key facts
Latest update
No public update is available.
Full timeline
No public timeline entries are available.
Sources
Open questions
- How broadly has the Chat update rolled out across regions and account configurations?
- What model or behavior changes distinguish the updated Sol version?
- Will Work or Codex receive a related update later?
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Roundup appearances
No roundup appearances are available.