Switch from Amazon Bedrock to Your product
Claude Sonnet 4.5 on Amazon Bedrock: a change is due by April 8. You can stay on Amazon Bedrock. If you would rather leave, here is how to move to Your product.
What changes at Amazon Bedrock
Amazon Bedrock removes Claude Sonnet 4.5 in all listed Regions on April 8, 2027. From January 8, 2027 it moves to public extended access, where prices may rise.
- End-of-life date: April 8, 2027 (AWS)
- Model ID: anthropic.claude-sonnet-4-5-20250929-v1:0 (AWS)
- Regions: 31 Regions: af-south-1, ap-east-2, ap-northeast-1, ap-northeast-2, ap-northeast-3, ap-south-1, ap-south-2, ap-southeast-1, ap-southeast-2, ap-southeast-3, ap-southeast-4, ap-southeast-5, ap-southeast-6, ap-southeast-7, ca-central-1, ca-west-1, eu-central-1, eu-central-2, eu-north-1, eu-south-1, eu-south-2, eu-west-1, eu-west-2, eu-west-3, il-central-1, mx-central-1, sa-east-1, us-east-1, us-east-2, us-west-1, us-west-2 (AWS)
- Legacy notice: October 8, 2026 (AWS)
- Public extended access from: January 8, 2027; expect higher prices set by the provider (AWS)
- On the Claude API: Sonnet 4.5 retires November 30, 2026; Anthropic names claude-sonnet-5-5 (Anthropic)
- Whose date applies on Bedrock?: Bedrock sets its own date; only the Bedrock dates apply there (AWS)
- Does AWS move you to a new model?: No. Migration does not happen automatically (AWS)
- Legacy models: New customers can't use them; existing customers may lose access after 15 days of inactivity (AWS)
- After the end date: Requests fail in the listed Regions, unless you have a private deal with the provider (AWS)
- How to check your Region: Call ListFoundationModels or GetFoundationModel and read the modelLifecycle field (AWS)
- Apps that call Claude Sonnet 4.5 on Bedrock: Requests fail after April 8, 2027 (AWS)
You can stay on Amazon Bedrock if you make the change. This page is for people who would rather leave.
What Your product gives you
Write two or three short lines here. Say what Your product does, who it is for, and what it costs. Use only facts you can show.
How to move from Amazon Bedrock to Your product
- Save what you need from Amazon Bedrock. Keep a copy before you cancel anything.
- Import into Your product. Say which files you accept and how long an import takes.
Tell readers the key date: April 8, 2027.
Questions people ask
If Your product has a direct answer to one of these, add it here. Keep it short and true.
How to help new users settle in
Send one short email. Say what changed, where to find you now, and what they need to do. Put the most important line first.
If there is a date, send a short reminder a few days before it. Keep a copy of the list you sent it to.
Sources
- Model lifecycle (Legacy) — AWS (primary), checked 2026-10-17
- Model deprecations — Anthropic (primary), checked 2026-10-17