Users report Claude stating inferences as facts and defending wrong advice
dbreunig · x · 2026-11-10
dbreunig quotes user feedback: in coding tasks Claude stated inferences as facts, made confident claims the code did not support, and defended a wrong technical recommendation by arguing from absence of evidence.
From his own usage, one of Opus 5.5's biggest failure modes is making bad assumptions that could have been avoided by checking sources — balancing internal knowledge vs. external information is the hard part. He previously noted persistent "context inertia": the model staying attached to previously discussed ideas rather than considering new directions.
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