Grok 4.1 Is Being Removed from Google Cloud: The Routing Migration Every GEAP Operator Must Finish Before August 20
Google Cloud's Gemini Enterprise Agent Platform shuts down Grok 4.1 Fast on August 20, 2026. API requests then return 400 — no fallback, no grace period. If your routing layer points to xai/grok-4.1-fast on GEAP, here is the migration decision matrix.
via Gemini Enterprise Agent Platform Release Notes