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Anthropic's Opus 5.0 criticized for excessive and erroneous commenting

Users are reporting that Anthropic's Opus 5.0 model is exhibiting problematic behavior by adding excessive and incorrect comments, even when instructed not to. This issue has been observed to break syntax in bash scripting, indicating a potential flaw in the model's understanding of basic scripting languages. The problem persists despite the model seemingly recognizing its own errors. AI

IMPACT Potential issues with Opus 5.0's code generation and instruction following could impact user trust and adoption.

RANK_REASON User feedback on a recently released model version.

Read on r/ClaudeAI →

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

Anthropic's Opus 5.0 criticized for excessive and erroneous commenting

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Commentary
User feedback on a recently released model version.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
model release, product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
38 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/ClaudeAI TIER_2 English(EN) · /u/f00dl3 ·

    The absolute insanity of comments in Opus 5.0 is killing me

    <table> <tr><td> <a href="https://www.reddit.com/r/ClaudeAI/comments/1vs7cdt/the_absolute_insanity_of_comments_in_opus_50_is/"> <img alt="The absolute insanity of comments in Opus 5.0 is killing me" src="https://preview.redd.it/teneqp3aa8kh1.png?width=640&amp;crop=smart&amp;auto=…