ChatGPT o3 Glitching: Users Report Incomplete Replies and Cutoff Outputs

Aine_123 · reddit · 2026-08-12

Multiple users have reported experiencing significant bugs with ChatGPT's o3 model on the web app. The model frequently stops generating responses mid-sentence, and standard options like 'copy' or 'regenerate' fail to appear. Refreshing the conversation causes these incomplete messages to vanish entirely, severely disrupting regular workflows.

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