Claude Code Introduces Fallback Model Setting for Enhanced Stability

Core summary

One sentence to understand this update

Claude Code v2.1.166 now includes a `fallbackModel` setting, allowing users to configure up to three alternative models for automatic switching when the primary model is overloaded or unavailable.

Impact & opportunity

What this could mean

Builders can leverage this feature to create more resilient AI applications, ensuring uninterrupted user experience even during primary model service instability.