Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

What:
<img width="644" height="445" alt="image"
src="https://github.com/user-attachments/assets/b1b01f7d-8ee9-448c-a8c7-ae80c16326e4"
/>

Tested towards EU region off AWS. Makes Claude Fabel 5 accessible
through bedrock.
To enable Fable you need to opt in to `provider_data_share` in AWS.
[AWS
Docs](https://docs.aws.amazon.com/bedrock/latest/userguide/model-card-anthropic-claude-fable-5.html)

Release Notes:

- Added Claude Fable 5 to the Amazon Bedrock provider.

---------

Co-authored-by: Neel <neel@zed.dev>