Vercel Flags now supports JSON values (opens in new tab)

**Published:** May 7, 2026 | **Authors:** Dominik Ferber, Chris Widmaier --- You can now store JSON values in Vercel Flags, extending the existing support for boolean, string, and number values. This allows you to collapse what used to take several related flags into a single feature flag. For example, to A/B test how a different model performs, you can now define a single `model` flag. This allows you to manage one flag that serves the full object rather than managing `ai_model`, `ai_temp...