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Getting the most out of Opus 5.5 in Claude and Claude Code

232 points · 156 comments · saikatsg

  1. rdli · · focus · HN ↗
    It’s a really good model. Over the past few days, I give Opus some general directives to basically speed up our CI, and telling it I care both about billing minutes and wall clock time. I told it to create a plan after analyzing everything in our CI, run the plan by a Fable subagent, and then focus on low-risk, high-reward changes.

    9 hours later, I had 12 PRs ready to be merged, and the net result is CI time has dropped from ~10 minutes to ~4 minutes, and billing minutes have dropped around 60%. Less than an hour of my attention.

    1. Betelbuddy · · focus · HN ↗
      >> It’s a really good model.

      In the meantime, I have cancelled my Anthropic subscription...

      I have a simple test that I have been running iteratively across the SOTA models from several vendors, including one Chinese vendor.

      I start with some code produced by an Anthropic SOTA model...let’s call that Code A. Then I get Code B and Code C for the same task from models by two other vendors.

      Then I ask each model to review and critique the other proposals.

      By the end, both the Anthropic model and I usually run out of arguments... against them and agree that proposals B and C are better.

      Claude then always asks whether it can incorporate the code or ideas from B and C into its own solution...

      1. karp773 · · focus · HN ↗
        It's not even funny any more. Chinese model, Chinese vendor, Chinese, Chinese... Did I say Chinese? Chinese!

        Nobody in his right mind will use a Chinese clone when you have models like Opus 5.5 for peanuts.

        1. verdverm · · focus · HN ↗
          > Nobody in his right mind will...

          let a few valley elites decide how humanity can use this technology

          open and transparent is the way, China is showing how

          1. christophilus · · focus · HN ↗
            I’m rooting for open models, but SOL 6.1 and Opus 5.5 are absolute workhorses on a $100/mo sub. I share your fears, though, and really hope an open model catches up and can somehow compete with the subscription prices of the big 2.
            1. verdverm · · focus · HN ↗
              I'd be remiss if I did not point out subscription plans like OpenCode Go, with generous quotas at $10/40 month (you can have more than one), which is a way better deal than anything you'll find with Big Ai
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