removed restrictions on MaxNumTokens in gpt-4-vision-preview

Author: toshiakit

+llms/+internal/callOpenAIChatAPI.m

@@ -131,7 +131,7 @@
 
 nvpOptions = keys(dict);
 if strcmp(nvp.ModelName,'gpt-4-vision-preview')
-    nvpOptions(ismember(nvpOptions,["MaxNumTokens","StopSequences"])) = [];
+    nvpOptions(ismember(nvpOptions,"StopSequences")) = [];
 end
 
 for opt = nvpOptions.'

examples/ExampleGPT4Vision.mlx

@@ -209,8 +209,8 @@
             %                          reproducible responses
             %                           
             % Currently, GPT-4 Turbo with vision does not support the message.name 
-            % parameter, functions/tools, response_format parameter, stop
-            % sequences, and max_tokens
+            % parameter, functions/tools, response_format parameter, and stop
+            % sequences. It also has a low MaxNumTokens default, which can be overridden.
 
             arguments
                 this                    (1,1) openAIChat
@@ -221,11 +221,6 @@
                 nvp.Seed                {mustBeIntegerOrEmpty(nvp.Seed)} = []
             end
 
-            if nvp.MaxNumTokens ~= Inf && strcmp(this.ModelName,'gpt-4-vision-preview')
-                error("llms:invalidOptionForModel", ...
-                        llms.utils.errorMessageCatalog.getMessage("llms:invalidOptionForModel", "MaxNumTokens", this.ModelName));
-            end
-
             toolChoice = convertToolChoice(this, nvp.ToolChoice);
             if ~isempty(nvp.ToolChoice) && strcmp(this.ModelName,'gpt-4-vision-preview')
                 error("llms:invalidOptionForModel", ...