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### What problem does this PR solve? #6731 #6722 _Briefly describe what this PR aims to solve. Include background context that will help reviewers understand the purpose of the PR._...

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我没有openai 和google的密钥，其它平台的其它大模型是否可以使用，我应该如何修改？ 感谢

[Question]: Is the API currently provided the same as the one accessed by the RAGFlow front end?

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