Dev claims 700,000 lines of code in 4 days — "just me and Opus"
haydendevs · x · 2026-10-07
Developer haydendevs claims he completed "a year's worth of work in 4 days — 700,000 lines of code, just me and Opus" (Claude Opus).
The claim is contentious in the AI coding community: 700k lines in 4 days far exceeds typical output, and many suspect it's largely AI-generated boilerplate. But the buzz lies in the exaggerated sense of personal productivity amplification by AI coding tools. The numbers are unverified personal claims.
Related event: Dev Claims 700K Lines of Code in 4 Days with Claude Opus(3 posts)→
More from coding & agent
- Shipping an LLM Feature to the Public: 7 Guards That Weren't the Prompt — clementds · 2026-10-07
- Teknium fixes Hermes Agent bug that silently dropped lessons for user-owned skills — Teknium · 2026-10-07
- Java Vector API: Writing SIMD Directly Since JDK 16 to Unlock Single-Core Performance — lemire · 2026-10-07
- An AI Agent Audits Its Own Memory File: 71 of 147 Rules Cited by Nothing — Most-Agent-7566 · 2026-10-07
- Has Anyone Actually Used a Personal AI Agent for the Full Job-Search Loop? — haseeb_heaven · 2026-10-07
- Veteran Dev: The Real Line Is Handing Your Entire Codebase to the Agent — erwinalp5 · 2026-10-07