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thinking model not working?
This r/ChatGPT thread addresses user-reported issues with ChatGPT's 'Thinking' mode not functioning as expected, a common frustration among subscribers. Users have noted problems such as the thinking
This r/ChatGPT thread addresses user-reported issues with ChatGPT's "Thinking" mode not functioning as expected, a common frustration among subscribers. Users have noted problems such as the thinking model responding instantly without any reasoning delay, being silently routed to a faster/lighter model despite explicitly selecting a thinking mode, or returning incomplete responses like "Finished thinking" with no actual output. These issues are often tied to ChatGPT's automatic model-routing behavior, where the system — rather than the user — determines which underlying model handles a given prompt.
Related
- Is your ChatGPT App working?
- Image generation failed error
- Doesn't work now :(
- The response not loading
- Is there a systems error when generating images right now?
Source: r/ChatGPT | 2026-04-14