Grok 4.1 Fast deprecated

XAI's Grok 4.1 Fast model, listed as xai/grok-4.1-fast-non-reasoning on Google Vertex, has been marked deprecated with no announced retirement date, according to a provider announcement on models.dev. The model was released on 2025-11-19 and supports text and image input with a 128k context window and 30k maximum output. The deprecation notice directs developers to a tool that scans repositories for models on a deprecation clock.

GG◑ Deprecating Grok 4.1 Fast Google · xai/grok-4.1-fast-non-reasoning Released2025-11-19 Retiresno announced date groktext+image128k context30k max out also matches: xai/grok-4.1-fast-non-reasoning google/xai/grok-4.1-fast-non-reasoning provider announcement → https://models.dev/google-vertex/xai/grok-4.1-fast-non-reasoning Does your code call Grok 4.1 Fast? $ curl -fsSL https://llmstatus.ai/install.sh | bash Then mm status in any repo — it finds every model you use and flags the ones on a clock. No account, nothing uploaded. Get alerted before it retires → /sign-up