Except that it hasn’t yet hit the real world, the live release is still 1.13.4, the last Zig version. Anthropic does not operate in the real world.

The canary build has been Rust for over a month, available to anyone. In that time it has been used in production for Claude Code and Prisma Compute.

	▲	sorenbs 8 hours ago \| parent \| next [-]
		We found the Rust based canary version to solve a number of memory leaks that we were struggling with in the Zig based 1.3. One of our engineers wrote up the details here: https://www.prisma.io/blog/bun-rust-rewrite-prisma-compute
	▲	atonse a day ago \| parent \| prev [-]
		Not sure why this purely factual post got downvoted. Upvoted it.