Unverified50% confidenceFactExact time
A progress update from Opus 5.5 may end the current turn while the actual work has not yet been completed.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/7/2026
First Seen
Valid until: 1/5/2027
Sources
Related Entities
Related Claims
UnverifiedA Reddit developer reported that Opus 5.5 performed excellently in the first 5 to 6 days after release, making no errors in complex tasks, but noticeably degraded afterward.67% similarUnverifiedUnofficial workarounds are likely to become ineffective after the next minor system version update.67% similarUnverifiedBased on the poster's hands-on experience, Opus 5.5 no longer encounters the loop of "pretending to complete" tasks.63% similarUnverifiedIgnoring minor version updates may lead to cumulative compatibility issues when performing a subsequent major version upgrade.61% similarUnverifiedThe breaking changes and feature removals involved in upgrading to 5.0.0 require existing projects to conduct regression testing before upgrading.60% similar
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