feat: add OpenAI GPT-5.5 and GPT-5.4 via Bedrock Mantle#2
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- Add gpt-5.5 and gpt-5.4 to configmap model_list - Use bedrock/mantle/ prefix with SigV4 auth (IRSA, no API key needed) - Endpoint: bedrock-mantle.us-east-2.api.aws/openai/v1/responses - Models only support Responses API (not /chat/completions) - Requires litellm >= 1.83.14 (Docker image has Python 3.12) - Update docs/models.md with Bedrock Mantle section Tested: both models respond correctly via SigV4-signed requests. Ref: https://aws.amazon.com/blogs/aws/get-started-with-openai-gpt-5-5-gpt-5-4-models-and-codex-on-amazon-bedrock/
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Summary
Add OpenAI GPT-5.5 and GPT-5.4 models via Amazon Bedrock Mantle endpoint (GA 2026-06-01).
Changes
kubernetes/configmap.yaml: Add gpt-5.5 and gpt-5.4 to model_listdocs/models.md: Add Bedrock Mantle section with usage notesTechnical Details
https://bedrock-mantle.us-east-2.api.aws/openai/v1/responsesBEDROCK_MANTLE_API_KEY(bearer token) or AWS SigV4Testing
Verified both models respond correctly:
Ref