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LLMs ported a TypeScript compiler and checker to Rust, with uneven compatibility

github.com 8 min read Editor score 7/10

The project reports more than $420,000 in token spending and 1.3 million Rust lines from earlier model runs before a later model produced a working v0; it claims full compatibility on tested real-world projects. The effort offers a striking, if early, data point on long-running LLM coding workflows.

What

- ts-rust is an LLM-built Rust port of the TypeScript compiler, checker, and language server.

How

- OpenAI models produced over 1.3 million Rust lines but reached about 84% compatibility; Opus 5.5 built a working v0 from scratch.

Why it matters

- Its stated targets—faster type checking and high-performance WASM—matter for compiler performance and deployment choices.

Read on github.com → Hacker News · 74 comments

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