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Livenerf: Has Opus 5.5 been nerfed yet?

922 points · 392 comments · bryan0

  1. nico · · focus · HN ↗
    Anecdata: I've been running a long-lived claude code session with Opus 4.6 for the last few days. Yesterday, almost right after the Sonnet 5.5 announcement, codex starting asking for permission to run things a lot more often

    The quality of the output/work seems the same, but the speed at which it gets stuff done is a lot slower, because it's asking for permission so much more

    I don't have any numbers/stats, just my impression. However, I imagine that if Anthropic could make the models ask for permission more often, it could be an interesting way to throttle access, without degrading quality of the output

    1. Computer0 · · focus · HN ↗
      I think most people are on 'auto' mode nowadays.
    2. pkaye · · focus · HN ↗
      I just use auto mode but there is also some config settings for more fine grain control. The model could even help you customize them.
    3. [deleted] · · focus · HN ↗

      [deleted]

    4. jacquesm · · focus · HN ↗
      ChatGPT tends to modulate the speed at which you can type. If it is a bug they probably should have fixed this months ago, so I'm guessing it is intentional.
      1. layla5alive · · focus · HN ↗
        Yes across all devices (mobile, PC, etc.). If it's a performance issue then it's one of those "happy accidents" that is a bug in their favor. Either they don't care about quality or they really like money more than quality, but no reason it can't be both.
      2. dannyw · · focus · HN ↗
        Super long chats are slow and sluggish too at least on chatgpt/claude.ai; even on a semi beefy machine.

        I’m sure it’s lowkey intentional, probably encourages users to spin up new chats; hence less context.

    5. mlh496 · · focus · HN ↗
      I noticed this, too. I suspect their classifiers which prohibit certain tasks or require user permission for others is the reason for this.
    6. fendy3002 · · focus · HN ↗
      subagent perhaps? afaik subagent by default uses sonnet and perhaps the 5.5 uses different permission definition
    7. ricardobeat · · focus · HN ↗
      This is the case since Opus 5, the latest models (from all providers) favor using shell tools instead of the View/Edit tools available in the harness, and “accept edits” doesn’t let those calls through. Auto mode is the best option.
    8. dagss · · focus · HN ↗
      Running agents in MicroVMs and skipping permissions is the most impactful change I have done in my habits for a while.

      Have a look into Docker sbx for instance.

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