Thread

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

232 points · 156 comments · saikatsg

rdli · 1791060574 · 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. GroksBarnacles · 1791062324 · focus · HN ↗
  Is "wall-clock" an actual term you used before Claude? I had never heard it before the model used it and I can't stand it.
  1. sdthjbvuiiijbb · 1791062657 · focus · HN ↗
    It's a standard term and has been for ages. It distinguishes end to end time vs eg the amount of CPU time an individual process uses (which excludes time spent waiting for the system or time when the process was otherwise not scheduled on the CPU).

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