Vapi scraps Build/Scale for four-tier Success Packages from $0 to custom

Build/Scale two-tier pricing replaced by a four-tier Success Package model: No Success Package ($0), Core ($29/mo), Pro (10% of hosting fee, $999/mo min), Premier (custom); new $20/org/month add-on added.

Entry-level concurrent call limit cut from 10 (Build, included) to 4 (No Success Package); regaining 10 concurrent calls now requires the paid Core plan at $29/month.

Zero Data Retention (ZDR), previously a $1,000/month add-on on both Build and Scale, is now included free with the Core ($29/mo) and Pro plans under the new Success Package tiers.