Vercel
7/23/2026

Evaluation metrics for Vercel Flags
Short summary
Vercel Flags now ships a live evaluation view on each flag's detail page, charting evaluations per minute with flag version markers so teams can correlate evaluation shifts with config changes. Evaluations can be grouped and filtered by variant, reason, environment, SDK key, client, and reporting project. Upgrade to @vercel/flags-core 1.6.0+ to enable metrics automatically with no extra configuration.
- •Live evaluation charts per flag with version markers for config-change correlation
- •Filter by variant, reason, environment, SDK key, client, and reporting project
- •Requires @vercel/flags-core 1.6.0+; metrics appear automatically
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