Gemini Carbon's Low thinking mode spills pages of internal monologue straight to user

rickasaurus · x · 2026-11-15

A user asked Gemini Carbon a math question with the Thinking level accidentally left on Low. After six screenfuls of math, the model realized it had closed its </thought> tag almost immediately (effort level 0.05) and had been streaming its internal monologue directly to the user for pages — then visibly panicked in the output, noting it couldn't delete already-emitted tokens and trying to finish the math "in its head" without thinking out loud in prose. A rare, hilarious look at how very low thinking budgets can break a model's thought/output separation in real time.

Related event: Gemini Leaks Internal Monologue Into User-Facing Output(2 posts)→

Original post →

More from Fun

Fun channel →