ChatGPT 5.5 Thinking behaving very differently suddenly
Users are reporting that ChatGPT 5.5 is exhibiting different behavior, with a noticeable decrease in its thinking trace and source browsing. This change appears to coincide with a shift in the system's internal logging from "thought for X seconds" to "worked for X seconds." The observed changes suggest that the model may be exerting less effort in its responses compared to previous days. AI
IMPACT User observations suggest potential changes in model performance or resource utilization, warranting further investigation.