[X]score: 0.28
AI-Assisted 3K-Line C Codegen: Fast to Ship, Slow to Trust
June 1, 2026
A developer used Claude Opus to implement a new HVM runtime approach in one day — 3K lines of C running 10x faster than HVM4 — but spent an equal day auditing AI-generated code and found semantic bugs, including incorrect branch variable bindings in pattern matching. The productivity gain was real but front-loaded; verification cost matched generation cost.
HOW THIS AFFECTS YOU
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builderYou can ship AI-generated code fast, but budget equivalent time for auditing — semantic correctness bugs won't surface from tests alone.