Anthropic spun up 16 Opus 4

Arpit Bhayani

Arpit Bhayani

Feb 06, 2026 • 1 min read


Anthropic spun up 16 Opus 4.6 agents to build a Rust-based C compiler from scratch - and the compiler they produced was able to compile the Linux kernel 🤯

All 16 agents worked in parallel on a shared codebase without active human intervention. No compiler engineers were involved, and the entire effort cost just $20,000 in API usage. That’s it!

The “agent team” produced a 100,000-line compiler capable of building Linux 6.9. Absolutely insane.

We are living in incredibly exciting times.

Arpit Bhayani

Principal Engineer II at Razorpay - building Agent Studio, Ex-staff engg at GCP Memorystore & Dataproc, Creator of DiceDB, ex-Amazon Fast Data, ex-Director of Engg. SRE and Data Engineering at Unacademy. I spark engineering curiosity through my no-fluff engineering videos on YouTube and my courses