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Engineering video

0:47 · 21 October 2026

opus 5.5 for everything

Key concepts in this video:

1. Model Router and Agent Limitations

Using Opus 5.5 for everything currently, with future work including a model router to choose between cheap and strong models. Additionally, agents currently struggle by putting too many issue-name comments in code, over-optimizing for specific constraints, and failing to handle broader post-mortem architectural changes.

Hear it at 0:00 →

Transcript

And now, as future work, I noticed a couple of things, having a model router. So we can choose between a cheap model versus a strong model. Right now, I'm using Opus 5.5 for everything, and I think this will work and you know, and tropical to the IPO and they finally start charging us the real price of inference. having docs and a change log agent. Right now, agents put too many comments in the code.