Add new models and update token properties

Updated README.md to list new models (`o1-preview` and `o1-mini`) and revised configuration examples to use `MaxCompletionTokens`. Updated appsettings.json to reflect the new `MaxCompletionTokens` property in configuration examples. Added constants for new models in OpenAIChatGptModels.cs with descriptions and token support details.

README.md

@@ -36,6 +36,7 @@ builder.Services.AddChatGpt(options =>
     options.DefaultParameters = new ChatGptParameters
     {
         MaxTokens = 800,
+        //MaxCompletionTokens = 800,  // o1 series models support this property instead of MaxTokens
         Temperature = 0.7
     };
 });
@@ -85,6 +86,8 @@ Currently available models are:
 - gpt-4-turbo
 - gpt-4o
 - gpt-4o-mini
+- o1-preview
+- o1-mini
 
 They have fixed names, available in the [OpenAIChatGptModels.cs file](https://github.com/marcominerva/ChatGptNet/blob/master/src/ChatGptNet/Models/OpenAIChatGptModels.cs).
 
@@ -163,6 +166,7 @@ The configuration can be automatically read from [IConfiguration](https://learn.
     //    "Temperature": 0.8,
     //    "TopP": 1,
     //    "MaxTokens": 500,
+    //    "MaxCompletionTokens": null,  // o1 series models support this property instead of MaxTokens
     //    "PresencePenalty": 0,
     //    "FrequencyPenalty": 0,
     //    "ResponseFormat": { "Type": "text" }, // Allowed values for Type: text (default) or json_object

samples/ChatGptConsole/appsettings.json

@@ -17,7 +17,7 @@
         //    "Temperature": 0.8,
         //    "TopP": 1,
         //    "MaxTokens": 500,
-        //    "MaxCompletionTokens": null,  // o1 series models supports this property instead of MaxTokens
+        //    "MaxCompletionTokens": null,  // o1 series models support this property instead of MaxTokens
         //    "PresencePenalty": 0,
         //    "FrequencyPenalty": 0,
         //    "ResponseFormat": { "Type": "text" }, // Allowed values for Type: text (default) or json_object

samples/ChatGptFunctionCallingConsole/appsettings.json

@@ -17,7 +17,7 @@
         //    "Temperature": 0.8,
         //    "TopP": 1,
         //    "MaxTokens": 500,
-        //    "MaxCompletionTokens": null,  // o1 series models supports this property instead of MaxTokens
+        //    "MaxCompletionTokens": null,  // o1 series models support this property instead of MaxTokens
         //    "PresencePenalty": 0,
         //    "FrequencyPenalty": 0,
         //    "ResponseFormat": { "Type": "text" }, // Allowed values for Type: text (default) or json_object

samples/ChatGptStreamConsole/appsettings.json

@@ -17,6 +17,7 @@
         //    "Temperature": 0.8,
         //    "TopP": 1,
         //    "MaxTokens": 500,
+        //    "MaxCompletionTokens": null,  // o1 series models support this property instead of MaxTokens
         //    "PresencePenalty": 0,
         //    "FrequencyPenalty": 0,
         //    "ResponseFormat": { "Type": "text" }, // Allowed values for Type: text (default) or json_object

src/ChatGptNet/Models/OpenAIChatGptModels.cs

@@ -69,4 +69,22 @@ public static class OpenAIChatGptModels
     /// See <see href="https://platform.openai.com/docs/models/gpt-4o-mini">GPT-4</see> for more information.
     /// </remarks>
     public const string Gpt4_o_mini = "gpt-4o-mini";
+
+    /// <summary>
+    /// Reasoning model designed to solve hard problems across domains.
+    /// </summary>
+    /// <remarks>
+    /// This model supports 128.000 tokens and returns a maximum of 32.768 outpout tokens.
+    /// See <see href="https://platform.openai.com/docs/models#o1">o1-preview and o1-mini</see> for more information.
+    /// </remarks>
+    public const string O1_preview = "o1-preview";
+
+    /// <summary>
+    /// Faster and cheaper reasoning model particularly good at coding, math, and science.
+    /// </summary>
+    /// <remarks>
+    /// This model supports 128.000 tokens and returns a maximum of 32.768 outpout tokens.
+    /// See <see href="https://platform.openai.com/docs/models#o1">o1-preview and o1-mini</see> for more information.
+    /// </remarks>
+    public const string O1_mini = "o1-mini";
 }