Slight cleanup to openai

Remove /v1 from base url, removed some slight repetition

pkg/api/provider/openai/openai.go

@@ -185,7 +185,17 @@ func createChatCompletionRequest(
 	return request
 }
 
-func (c *OpenAIClient) sendRequest(req *http.Request) (*http.Response, error) {
+func (c *OpenAIClient) sendRequest(ctx context.Context, r ChatCompletionRequest) (*http.Response, error) {
+	jsonData, err := json.Marshal(r)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "POST", c.BaseURL+"/v1/chat/completions", bytes.NewBuffer(jsonData))
+	if err != nil {
+		return nil, err
+	}
+
 	req.Header.Set("Content-Type", "application/json")
 	req.Header.Set("Authorization", "Bearer "+c.APIKey)
 
@@ -213,17 +223,8 @@ func (c *OpenAIClient) CreateChatCompletion(
 	}
 
 	req := createChatCompletionRequest(params, messages)
-	jsonData, err := json.Marshal(req)
-	if err != nil {
-		return nil, err
-	}
 
-	httpReq, err := http.NewRequestWithContext(ctx, "POST", c.BaseURL+"/chat/completions", bytes.NewBuffer(jsonData))
+	resp, err := c.sendRequest(ctx, req)
-	if err != nil {
-		return nil, err
-	}
-
-	resp, err := c.sendRequest(httpReq)
 	if err != nil {
 		return nil, err
 	}
@@ -273,17 +274,7 @@ func (c *OpenAIClient) CreateChatCompletionStream(
 	req := createChatCompletionRequest(params, messages)
 	req.Stream = true
 
-	jsonData, err := json.Marshal(req)
+	resp, err := c.sendRequest(ctx, req)
-	if err != nil {
-		return nil, err
-	}
-
-	httpReq, err := http.NewRequestWithContext(ctx, "POST", c.BaseURL+"/chat/completions", bytes.NewBuffer(jsonData))
-	if err != nil {
-		return nil, err
-	}
-
-	resp, err := c.sendRequest(httpReq)
 	if err != nil {
 		return nil, err
 	}

pkg/lmcli/lmcli.go

@@ -122,7 +122,7 @@ func (c *Context) GetModelProvider(model string) (string, api.ChatCompletionProv
 						BaseURL: url,
 					}, nil
 				case "openai":
-					url := "https://api.openai.com/v1"
+					url := "https://api.openai.com"
 					if p.BaseURL != nil {
 						url = *p.BaseURL
 					}