New model: Claude Fable 5.1 (Google)

Google released Claude Fable 5.1 on 2026-09-01, a multimodal model supporting text, image, and PDF inputs with a 1000k context window and 128k max output. The model is available via Google's Vertex AI platform under the identifier claude-fable-5-1@default, with no retirement date announced.

GG● Healthy Claude Fable 5.1 Google · claude-fable-5-1@default Released2026-09-01 Retiresno announced date claude-fabletext+image+pdf1000k context128k max out also matches: claude-fable-5-1@default google/claude-fable-5-1@default provider announcement → https://models.dev/google-vertex/claude-fable-5-1@default Does your code call Claude Fable 5.1? $ 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