diff --git a/.gitignore b/.gitignore
index 2a8df80bc..5686213a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -226,3 +226,4 @@ _ref_preview/
 
 # Claude Code session artifacts in subdirectories (not root .claude/)
 Generation/**/.claude/
+.keys/
diff --git a/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterConfig.cs b/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterConfig.cs
index 953c3c674..75435de9f 100644
--- a/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterConfig.cs
+++ b/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterConfig.cs
@@ -31,6 +31,10 @@ public class DatasetUpdaterConfig
 
 	public string Model { get; set; } = "gpt-5.4-mini";
 
+	public string? BaseUrl { get; set; }
+
+	public int? MaxOutputTokens { get; set; }
+
 	public int MaxTokensPerMinute { get; set; } = 70000;
 
 	public DivisionMode DivisionMode { get; set; }
@@ -469,6 +473,8 @@ private async Task DoChatGPTCall(CancellationToken ct, List<Dictionary<string, o
 				var dataPrompt = new Prompt()
 				{
 					ApiKey = openAIKey,
+					BaseUrl = BaseUrl,
+					MaxOutputTokens = MaxOutputTokens,
 					Model = Model,
 					SystemPrompt = systemPrompt,
 					DialogPrompts = DialogPrompts,
diff --git a/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterRootConfig.cs b/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterRootConfig.cs
index eeb70afae..4b43e2584 100644
--- a/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterRootConfig.cs
+++ b/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/DatasetUpdaterRootConfig.cs
@@ -509,11 +509,13 @@ public async Task Apply(AssetConverterConfig config)
 					AssistantAnswerPath = PromptsRootPath + "PromptVirtuesTranslateEnAssistant.txt"
 				}
 			},
-			// FR → EN translation empty-only — eco tier. Fallback: gpt-4.1-mini
-			Model = "gpt-5.4-mini",
+			// FR → EN via OpenAI gpt-5.5 (best quality per benchmark)
+			Model = "gpt-5.5",
+			OpenAIKeyPath = @".keys\openai-key.txt",
+			MaxOutputTokens = 4096,
 			MaxTokensPerMinute = 70000,
 			DivisionMode = DivisionMode.SequentialChunks,
-			ChunkSize = 8,
+			ChunkSize = 4,
 			UseFunctionCalling = true,
 			NbMessageCalls = 1,
 			SkipChunkNb = 0,
@@ -794,11 +796,13 @@ public async Task Apply(AssetConverterConfig config)
 					AssistantAnswerPath = PromptsRootPath + "PromptScenariiTranslateEnAssistant.txt"
 				}
 			},
-			// FR → EN translation empty-only — eco tier. Fallback: gpt-4.1-mini
-			Model = "gpt-5.4-mini",
+			// FR → EN via OpenAI gpt-5.5 (best quality per benchmark)
+			Model = "gpt-5.5",
+			OpenAIKeyPath = @".keys\openai-key.txt",
+			MaxOutputTokens = 4096,
 			MaxTokensPerMinute = 70000,
 			DivisionMode = DivisionMode.SequentialChunks,
-			ChunkSize = 8,
+			ChunkSize = 4,
 			UseFunctionCalling = true,
 			NbMessageCalls = 1,
 			SkipChunkNb = 0,
diff --git a/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/Prompt.cs b/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/Prompt.cs
index 03d9e99c0..1ed418428 100644
--- a/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/Prompt.cs
+++ b/Generation/Converters/Argumentum.AssetConverter/DatasetUpdater/Prompt.cs
@@ -18,6 +18,10 @@ public class Prompt
 
     public string ApiKey { get; set; } = "";
 
+    public string? BaseUrl { get; set; }
+
+    public int? MaxOutputTokens { get; set; }
+
     public string SystemPrompt { get; set; } = "";
 
     public List<PromptExample> DialogPrompts { get; set; } = new();
@@ -32,7 +36,15 @@ public ChatClient ChatClient
         {
             if (_chatClient == null)
             {
-                _openAIClient = new OpenAI.OpenAIClient(ApiKey);
+                if (!string.IsNullOrEmpty(BaseUrl))
+                {
+                    var options = new OpenAI.OpenAIClientOptions { Endpoint = new Uri(BaseUrl) };
+                    _openAIClient = new OpenAI.OpenAIClient(new System.ClientModel.ApiKeyCredential(ApiKey), options);
+                }
+                else
+                {
+                    _openAIClient = new OpenAI.OpenAIClient(ApiKey);
+                }
                 _chatClient = _openAIClient.GetChatClient(Model);
             }
             return _chatClient;
@@ -77,6 +89,11 @@ public async Task<string> Send(CancellationToken cancellationToken, Action<strin
 
         var options = new ChatCompletionOptions();
 
+        if (MaxOutputTokens.HasValue)
+        {
+            options.MaxOutputTokenCount = MaxOutputTokens.Value;
+        }
+
         if (Functions != null && Functions.Count > 0)
         {
             foreach (var func in Functions)