AIBullisharXiv – CS AI · 14h ago7/10
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From Translation to Superset: Benchmark-Driven Evolution of a Production AI Agent from Rust to Python
Researchers demonstrate a methodology for translating a large production Rust codebase (648K LOC) into Python using LLM assistance, guided by benchmark performance as an objective function. The Python port of Codex CLI, an AI coding agent, achieves near-parity performance on real-world tasks while reducing code size by 15.9x and enabling 30 new features absent from the original Rust implementation.