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feat: update Bedrock Mantle endpoint and GPT-5.4 model ID (#20109)

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## Summary

Amazon Bedrock Mantle's OpenAI-compatible endpoint now lives under
`/openai/v1`, and the GPT-5.4 Mantle model ID no longer uses the `-cmb`
suffix. This updates Codex's built-in Bedrock provider configuration so
generated providers and the static Bedrock catalog use the current
endpoint and model ID.

## Changes

- Update the Bedrock Mantle base URL from
`https://bedrock-mantle.{region}.api.aws/v1` to
`https://bedrock-mantle.{region}.api.aws/openai/v1`.
- Update the Amazon Bedrock default base URL in
`codex-model-provider-info`.
- Change the Bedrock GPT-5.4 catalog slug from `openai.gpt-5.4-cmb` to
`openai.gpt-5.4`.
- Align provider and catalog tests with the new URL and model ID.

## Test Plan

- Manual smoke test:

  ```shell
  target/debug/codex \
      -m openai.gpt-5.4 \
      -c 'model_provider="amazon-bedrock"' \
      -c 'model_providers.amazon-bedrock.aws.region="us-west-2"'
  ```
This commit is contained in:
Celia Chen
2026-04-29 01:37:21 +00:00
committed by GitHub
parent 8c47e36504
commit 80fb0704ee
6 changed files with 9 additions and 8 deletions
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codex-rs/model-provider-info/src/lib.rs
+2 -1
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@@ -36,7 +36,8 @@ const OPENAI_PROVIDER_NAME: &str = "OpenAI";
pub const OPENAI_PROVIDER_ID: &str = "openai";
const AMAZON_BEDROCK_PROVIDER_NAME: &str = "Amazon Bedrock";
pub const AMAZON_BEDROCK_PROVIDER_ID: &str = "amazon-bedrock";
pub const AMAZON_BEDROCK_DEFAULT_BASE_URL: &str = "https://bedrock-mantle.us-east-1.api.aws/v1";
pub const AMAZON_BEDROCK_DEFAULT_BASE_URL: &str =
"https://bedrock-mantle.us-east-1.api.aws/openai/v1";
const CHAT_WIRE_API_REMOVED_ERROR: &str = "`wire_api = \"chat\"` is no longer supported.\nHow to fix: set `wire_api = \"responses\"` in your provider config.\nMore info: https://github.com/openai/codex/discussions/7782";
pub const LEGACY_OLLAMA_CHAT_PROVIDER_ID: &str = "ollama-chat";
pub const OLLAMA_CHAT_PROVIDER_REMOVED_ERROR: &str = "`ollama-chat` is no longer supported.\nHow to fix: replace `ollama-chat` with `ollama` in `model_provider`, `oss_provider`, or `--local-provider`.\nMore info: https://github.com/openai/codex/discussions/7782";
codex-rs/model-provider-info/src/model_provider_info_tests.rs
+1 -1
View File
@@ -245,7 +245,7 @@ fn test_create_amazon_bedrock_provider() {
ModelProviderInfo::create_amazon_bedrock_provider(/*aws*/ None),
ModelProviderInfo {
name: "Amazon Bedrock".to_string(),
base_url: Some("https://bedrock-mantle.us-east-1.api.aws/v1".to_string()),
base_url: Some("https://bedrock-mantle.us-east-1.api.aws/openai/v1".to_string()),
env_key: None,
env_key_instructions: None,
experimental_bearer_token: None,