Fable 5 reportedly turned a 200K-line cleanup into a short task
A 200,000-line project still worked, but its structure had grown old and heavy. The ORM should have been removed, and Redis and MQ were leftovers from an earlier stage when the system had been overbuilt. The core logic mainly needed , but extra design layers made the code harder to maintain.
The same cleanup was expected to take 4 to 5 days with Opus 4.8 or GPT 5.5. The work would include splitting the