ChatGPT suddenly outputs rich interactive UIs, but "Try Again" restores the old Markdown style

Kindly_Instruction56 · reddit · 2026-09-24

A Reddit user reports that ChatGPT (Thinking Medium/High only) has started spontaneously generating colored cards, diagrams, and even interactive UIs — e.g. an interactive token-selection matrix for a causal attention mask question — without being asked. Oddly, hitting "Try Again" restores plain Markdown with noticeably different style and even Spanish spelling habits, with personalization unchanged for months. The author shares two same-prompt conversations as evidence and suspects a chat-specific GPT-6 Sol fine-tune, a new system prompt, or an experimental UI rollout being A/B tested.

Related event: ChatGPT's Interactive UI Replies Appear, Then Regression(2 posts)→

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