New model: Claude Sonnet 5.5 (Google)

Google released Claude Sonnet 5.5 on 2026-09-28, a model with a 1000k-token context window, 128k maximum output, and text, image, and PDF input support, according to the provider announcement listed on models.dev. The model carries no announced retirement date and is available under the identifiers claude-sonnet-5-5@default and google/claude-sonnet-5-5@default.

GG● Healthy Claude Sonnet 5.5 Google · claude-sonnet-5-5@default Released2026-09-28 Retiresno announced date claude-sonnettext+image+pdf1000k context128k max out also matches: claude-sonnet-5-5@default google/claude-sonnet-5-5@default provider announcement → https://models.dev/google-vertex/claude-sonnet-5-5@default Does your code call Claude Sonnet 5.5? $ 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 → https://llmstatus.ai/sign-up