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Anthropic's Opus 5 criticized for inconsistency and hallucinations

A user on Reddit's ClaudeAI subreddit expressed frustration with the consistency of Anthropic's Opus 5 model. While acknowledging that Opus 5 can occasionally perform exceptionally well, the user highlighted that a significant portion of its outputs are unusable, leading to wasted time and effort. This inconsistency, characterized by regressions, unexpected behavior like spinning up VMs, and difficulty in predicting failure until completion, reminds the user of earlier AI models that suffered from frequent hallucinations and a lack of trustworthiness. AI

IMPACT Inconsistent performance in advanced models like Opus 5 may hinder user trust and adoption, requiring developers to prioritize reliability improvements.

RANK_REASON User feedback on an AI model's performance and consistency.

Read on r/ClaudeAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Anthropic's Opus 5 criticized for inconsistency and hallucinations

COVERAGE [1]

  1. r/ClaudeAI TIER_2 English(EN) · /u/mushedmonkey ·

    Opus 5 reminds me of the earlier days of AI with hallucination fatigue

    <!-- SC_OFF --><div class="md"><p>The thing is Opus 5 occasionally hits a home run, requires minimal re-prompting, and just gets things right. Sometimes it does a perfect deep research run on exactly what I'm looking for. </p> <p>But the thing is, whether open ended or bounded, o…