Users Find ChatGPT Quietly Routing GPT-5.6 Sol to 5.5-mini

Multiple users report that selecting GPT-5.6 Sol in ChatGPT actually routes conversations to GPT-5.5-mini; reproducible tests show medium-to-extreme effort tasks now fall back to 5.5-mini, an undisclosed routing change sparking transparency concerns.

2026-08-23 ~ 2026-08-23 · 2 related posts

• User finds ChatGPT routing changed: Medium/High effort tasks now default to 5.5 mini — coylter · 2026-08-23
• ChatGPT routing users to 5.5-mini despite selecting GPT-5.6 Sol — devil_ozz · 2026-08-23