[v6.0] fix: Amazon Bedrock Converse requests fail for ARN model IDs containing slashes

[lgrammel]

Background

Amazon Bedrock Converse generation failed and streaming returned empty text when ARN model IDs contained /.

Root Cause

The chat model URL builder decoded %2F in ARN model IDs, splitting the model ID across URL path segments and causing Bedrock to return an UnknownOperationException; route-sensitive regression tests confirmed the malformed path.

Summary

Restored full percent-encoding of model IDs when constructing Amazon Bedrock Converse and ConverseStream URLs.

Testing

Updated the existing chat language model tests with route-sensitive generate and stream coverage using inline snapshots, and added a patch changeset.

End-to-end Validation

• pnpm -C packages/amazon-bedrock build && pnpm -C examples/ai-functions exec tsx src/reproduction/issue-17523-bedrock-arn-model-id.ts — live Bedrock generation and streaming succeeded with the inference-profile ARN, returning assistant text and finish reason length.

Related Issues

Fixes #17523

Closes #17524

Backport of #17525

Co-authored-by: PaulBanusIAD 120463976+PaulBanusIAD@users.noreply.github.com

[github-actions]

🚀 Published in:

Package	Version
ai	6.0.232 github npm
@ai-sdk/amazon-bedrock	4.0.138 github npm
@ai-sdk/angular	2.0.233 github npm
@ai-sdk/anthropic	3.0.99 github npm
@ai-sdk/anthropic-aws	1.0.21 github npm
@ai-sdk/google	3.0.97 github npm
@ai-sdk/google-vertex	4.0.166 github npm
@ai-sdk/langchain	2.0.240 github npm
@ai-sdk/llamaindex	2.0.232 github npm
@ai-sdk/react	3.0.234 github npm
@ai-sdk/rsc	2.0.232 github npm
@ai-sdk/svelte	4.0.232 github npm
@ai-sdk/vue	3.0.232 github npm