Users are reporting issues with chat history after Anthropic removed the Sonnet 4.5 model and updated its application. Several users have noted that their conversations appear to be missing, reordered, or have incorrect timestamps. This behavior is causing distress, as users rely on these chat histories for important information. AI
IMPACT Potential user trust issues for Anthropic if chat history integrity is not restored.
RANK_REASON User-reported issue with a product, not a core model release or significant company event.
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