convex-rag with openAI throwing error

9/22/2025, 3:30:37 PM [CONVEX A(knowledgeBase:processDocument)] [ERROR] 'Error processing document:' { [Error: 400 Only the /chat/completions API is supported] status: 400, headers: Headers { 'content-length': '43', 'content-type': 'text/plain;charset=UTF-8', date: 'Mon, 22 Sep 2025 12:30:36 GMT', via: '1.1 Caddy', 'x-convex-usher': '1' }, requestID: null, error: undefined, code: undefined, param: undefined, type: undefined }

9/22/2025, 3:30:37 PM [CONVEX A(knowledgeBase:processDocument)] [ERROR] 'Error processing document:' { [Error: 400 Only the /chat/completions API is supported] status: 400, headers: Headers { 'content-length': '43', 'content-type': 'text/plain;charset=UTF-8', date: 'Mon, 22 Sep 2025 12:30:36 GMT', via: '1.1 Caddy', 'x-convex-usher': '1' }, requestID: null, error: undefined, code: undefined, param: undefined, type: undefined }