New model: Claude Sonnet 5.5 (US) (Amazon)

Anthropic's Claude Sonnet 5.5 became available on Amazon Bedrock under the model ID us.anthropic.claude-sonnet-5-5 on 2026-09-28, with no retirement date announced. The model accepts text, image and PDF input, supports a 1,000k-token context window and 128k maximum output, and is priced at $2.20 per 1M input tokens and $11 per 1M output tokens. The listing points developers to a provider announcement and to a tool that scans repositories for models with retirement dates.

AM● Healthy Claude Sonnet 5.5 US Amazon · us.anthropic.claude-sonnet-5-5 Released2026-09-28 Retiresno announced date claude-sonnettext+image+pdf1000k context128k max out$2.20 / $11 per 1M also matches: us.anthropic.claude-sonnet-5-5 amazon/us.anthropic.claude-sonnet-5-5 provider announcement → https://models.dev/amazon-bedrock/us.anthropic.claude-sonnet-5-5 Does your code call Claude Sonnet 5.5 US ? $ 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