diff --git a/README.md b/README.md
index 0e8a4b8..b6585fc 100644
--- a/README.md
+++ b/README.md
@@ -493,22 +493,19 @@ type ChatCompletionRequest struct {
     // If true, returns the log probabilities of each output token returned in the content of message.
     // This option is currently not available on the gpt-4-vision-preview model.
     LogProbs bool `json:"logprobs,omitempty"`
-    // TopLogProbs is an integer between 0 and 5 specifying the number of most likely tokens to return at each
-    // token position, each with an associated log probability.
-    // logprobs must be set to true if this parameter is used.
-    TopLogProbs int    `json:"top_logprobs,omitempty"`
-    User        string `json:"user,omitempty"`
-    // Deprecated: use Tools instead.
-    Functions []FunctionDefinition `json:"functions,omitempty"`
-    // Deprecated: use ToolChoice instead.
-    FunctionCall any    `json:"function_call,omitempty"`
-    Tools        []Tool `json:"tools,omitempty"`
-    // This can be either a string or an ToolChoice object.
-    ToolChoice any `json:"tool_choice,omitempty"`
-    // Options for streaming response. Only set this when you set stream: true.
-    StreamOptions *StreamOptions `json:"stream_options,omitempty"`
-    // Disable the default behavior of parallel tool calls by setting it: false.
-    ParallelToolCalls any `json:"parallel_tool_calls,omitempty"`
+    // TopLogProbs is an integer between 0 and 5 specifying the number of most 
+    // likely tokens to return at each // token position, each with an 
+    // associated log probability. LogProbs must be set to true if this 
+    // parameter is used.
+    TopLogProbs int    `json:"top_logprobs,omitempty"` // TopLogProbs is the top log probs of the chat completion message.
+    User        string `json:"user,omitempty"`        // User is the user of the chat completion message.
+    Tools        []Tool `json:"tools,omitempty"`       // Tools is the tools of the chat completion message.
+    ToolChoice any `json:"tool_choice,omitempty"` // ToolChoice is the tool choice of the chat completion message.
+    StreamOptions *StreamOptions `json:"stream_options,omitempty"` // StreamOptions is the stream options of the chat completion message. Only set this when you set stream: true.
+    // ParallelToolCalls is the parallel tool calls of the chat completion message.
+    //
+    // bool
+    ParallelToolCalls any `json:"parallel_tool_calls,omitempty"` 
 }
 ```
 
diff --git a/chat.go b/chat.go
index 217d866..b29329d 100644
--- a/chat.go
+++ b/chat.go
@@ -210,13 +210,8 @@ type ChatCompletionRequest struct {
 	// logprobs must be set to true if this parameter is used.
 	TopLogProbs int    `json:"top_logprobs,omitempty"`
 	User        string `json:"user,omitempty"`
-	// Deprecated: use Tools instead.
-	Functions []FunctionDefinition `json:"functions,omitempty"`
-	// Deprecated: use ToolChoice instead.
-	FunctionCall any    `json:"function_call,omitempty"`
-	Tools        []Tool `json:"tools,omitempty"`
-	// This can be either a string or an ToolChoice object.
-	ToolChoice any `json:"tool_choice,omitempty"`
+	Tools       []Tool `json:"tools,omitempty"`       // Tools is the tools of the chat completion message.
+	ToolChoice  any    `json:"tool_choice,omitempty"` // ToolChoice is the tool choice of the chat completion message.
 	// Options for streaming response. Only set this when you set stream: true.
 	StreamOptions *StreamOptions `json:"stream_options,omitempty"`
 	// Disable the default behavior of parallel tool calls by setting it: false.