Fable exit spurs Claude Code model rediscovery

While highly autonomous models like Fable generate initial excitement, developers often find that the reliability, speed, and lower latency of standard models like Sonnet and Opus are better suited for daily terminal tasks.

• –Autonomous overhead vs. execution speed: Highly agentic models like Fable often plan and delegate too aggressively, adding latency and cost that make them less practical for quick, iterative changes.
• –The role of Claude Code: As a CLI tool, Claude Code excels at tight edit-test loops where developers need fast response times, making Sonnet's speed a huge advantage over heavier agentic models.
• –Opus for complex refactoring: Opus remains the go-to model for deep reasoning and multi-file coordination when Sonnet falls short.
• –The routing opportunity: The experience highlights the value of model triage, allowing developers to switch between agentic planners (like Fable) and execution specialists (like Sonnet/Opus) based on task complexity.