[Feature]: Support OpenAI frontier models (gpt-5.5 / gpt-5.4) on bedrock-mantle via the /openai/v1/responses path
![[Feature]: Support OpenAI frontier models (gpt-5.5 / gpt-5.4) on bedrock-mantle via the /openai/v1/responses path](https://www.chat-gpts.plus/wp-content/uploads/2026/06/29463-acec6349-768x403.jpg)
用户在 LiteLLM 中调用 AWS Bedrock Mantle 上托管的 OpenAI 前沿模型( openai.gpt-5.5 、 openai.gpt-5.4 )时,触发如下错误。这些模型仅在 us-east-2 区域可用,且仅支持 Responses API( /openai/v1/re
![[Bug]: `redis-semantic` cache never produces semantic hits, `_get_cache_key_filter_expression` uses full request hash as RediSearch pre-filt](https://www.chat-gpts.plus/wp-content/uploads/2026/06/29086-12748e58-768x403.jpg)







