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pingdotgg Says Claude Opus 5.5 Ported TypeScript 7 To Rust In 10 Hours

Oct 09, 2026
GitHub
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Summary

pingdotgg ships ts-rust, an experimental Rust port of the TypeScript 7 compiler, installable as the npm package tsc-rs. The developer says Claude Opus 5.5 produced a working version in 10 hours for roughly $24,047 in tokens, after more than $400,000 spent on OpenAI models that stalled near 84 percent compatibility. Windows is not supported yet.

Key Points

  • pingdotgg says Opus 5.5 started the Rust port from scratch rather than reusing the Codex models' code.
  • All 181,711 ported Go tests pass against the pinned microsoft/TypeScript revision 673a5f17d713.
  • pingdotgg says tsc-rs type checks 60 open-source projects in roughly half of Go's time.

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