AI Coding Weekly

Bun AOT runs Claude Code at 267 MB with 67 subagents

Jarred Sumner spent four hours running Claude Code on a Bun AOT build and watched it sit at 267 MB of RAM with 67 active subagents. He had predicted 2-3x less memory the day before.

The big disagreement

Thariq asks if Opus 5.5 got dumber, Theo laughs along, nobody shows a test

Thariq asked whether it is just him or Opus 5.5 is dumber, in a reply thread where Lydia Hallie says she will miss working with him and is looking forward to his Claude Code feedback. Theo's entire contribution was "Lmao". No benchmark, no codebase, no before and after from either of them.

Thariq
@trq212
X
wait is it just me or is Opus 5.5 dumber
Oct 24, 2026 · View on X

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Receipts

Jarred Sumner runs Claude Code on a Bun AOT build, 267 MB with 67 subagents

Jarred Sumner says he has been working on Bun AOT inside a Claude Code build compiled with Bun AOT for about four hours. Activity Monitor showed 267 MB of RAM with 67 active subagents, 66 shells, remote control and a big session transcript.

Jarred Sumner
@jarredsumner
X
Instead of you rewriting in Rust, we rewrote JavaScript's compiler to emit native code ahead of time
Oct 23, 2026 · View on X

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Coding with AI, read daily so you do not have to. The experiments, the receipts and the arguments from engineers shipping real software. Not a changelog.