diff --git a/src/WebStarter/appsettings.json b/src/WebStarter/appsettings.json
index 3e4bf12c9..7405ec21b 100644
--- a/src/WebStarter/appsettings.json
+++ b/src/WebStarter/appsettings.json
@@ -662,6 +662,42 @@
     {
       "Provider": "minimax",
       "Models": [
+        {
+          "Id": "MiniMax-M3.1-Flash",
+          "Name": "MiniMax-M3.1-Flash",
+          "Version": "MiniMax-M3.1-Flash",
+          "ApiKey": "",
+          "Endpoint": "https://api.minimax.io/v1",
+          "ContextWindow": 1000000,
+          "Type": "chat",
+          "MultiModal": true,
+          "Capabilities": [
+            "Chat",
+            "ImageReading"
+          ],
+          "InputModalities": [
+            "text",
+            "image",
+            "video"
+          ],
+          "Reasoning": {
+            "Parameters": {
+              "ThinkingType": {
+                "Default": "adaptive",
+                "Options": [ "adaptive" ]
+              },
+              "EffortLevel": {
+                "Default": "max",
+                "Options": [ "low", "medium", "high", "xhigh", "max" ]
+              }
+            }
+          },
+          "Cost": {
+            "TextInputCost": 0.00015,
+            "CachedTextInputCost": 0.000015,
+            "TextOutputCost": 0.0006
+          }
+        },
         {
           "Id": "MiniMax-M3",
           "Name": "MiniMax-M3",
@@ -776,6 +812,42 @@
     {
       "Provider": "minimax-cn",
       "Models": [
+        {
+          "Id": "MiniMax-M3.1-Flash",
+          "Name": "MiniMax-M3.1-Flash",
+          "Version": "MiniMax-M3.1-Flash",
+          "ApiKey": "",
+          "Endpoint": "https://api.minimaxi.com/v1",
+          "ContextWindow": 1000000,
+          "Type": "chat",
+          "MultiModal": true,
+          "Capabilities": [
+            "Chat",
+            "ImageReading"
+          ],
+          "InputModalities": [
+            "text",
+            "image",
+            "video"
+          ],
+          "Reasoning": {
+            "Parameters": {
+              "ThinkingType": {
+                "Default": "adaptive",
+                "Options": [ "adaptive" ]
+              },
+              "EffortLevel": {
+                "Default": "max",
+                "Options": [ "low", "medium", "high", "xhigh", "max" ]
+              }
+            }
+          },
+          "Cost": {
+            "TextInputCost": 0.00015,
+            "CachedTextInputCost": 0.000015,
+            "TextOutputCost": 0.0006
+          }
+        },
         {
           "Id": "MiniMax-M3",
           "Name": "MiniMax-M3",
@@ -890,6 +962,42 @@
     {
       "Provider": "minimax-anthropic",
       "Models": [
+        {
+          "Id": "MiniMax-M3.1-Flash",
+          "Name": "MiniMax-M3.1-Flash",
+          "Version": "MiniMax-M3.1-Flash",
+          "ApiKey": "",
+          "Endpoint": "https://api.minimax.io/anthropic",
+          "ContextWindow": 1000000,
+          "Type": "chat",
+          "MultiModal": true,
+          "Capabilities": [
+            "Chat",
+            "ImageReading"
+          ],
+          "InputModalities": [
+            "text",
+            "image",
+            "video"
+          ],
+          "Reasoning": {
+            "Parameters": {
+              "ThinkingType": {
+                "Default": "adaptive",
+                "Options": [ "adaptive" ]
+              },
+              "EffortLevel": {
+                "Default": "max",
+                "Options": [ "low", "medium", "high", "xhigh", "max" ]
+              }
+            }
+          },
+          "Cost": {
+            "TextInputCost": 0.00015,
+            "CachedTextInputCost": 0.000015,
+            "TextOutputCost": 0.0006
+          }
+        },
         {
           "Id": "MiniMax-M3",
           "Name": "MiniMax-M3",
@@ -1004,6 +1112,42 @@
     {
       "Provider": "minimax-anthropic-cn",
       "Models": [
+        {
+          "Id": "MiniMax-M3.1-Flash",
+          "Name": "MiniMax-M3.1-Flash",
+          "Version": "MiniMax-M3.1-Flash",
+          "ApiKey": "",
+          "Endpoint": "https://api.minimaxi.com/anthropic",
+          "ContextWindow": 1000000,
+          "Type": "chat",
+          "MultiModal": true,
+          "Capabilities": [
+            "Chat",
+            "ImageReading"
+          ],
+          "InputModalities": [
+            "text",
+            "image",
+            "video"
+          ],
+          "Reasoning": {
+            "Parameters": {
+              "ThinkingType": {
+                "Default": "adaptive",
+                "Options": [ "adaptive" ]
+              },
+              "EffortLevel": {
+                "Default": "max",
+                "Options": [ "low", "medium", "high", "xhigh", "max" ]
+              }
+            }
+          },
+          "Cost": {
+            "TextInputCost": 0.00015,
+            "CachedTextInputCost": 0.000015,
+            "TextOutputCost": 0.0006
+          }
+        },
         {
           "Id": "MiniMax-M3",
           "Name": "MiniMax-M3",
diff --git a/tests/BotSharp.LLM.Tests/MiniMaxProviderTests.cs b/tests/BotSharp.LLM.Tests/MiniMaxProviderTests.cs
index 716dfcb1c..fcbb3bd4d 100644
--- a/tests/BotSharp.LLM.Tests/MiniMaxProviderTests.cs
+++ b/tests/BotSharp.LLM.Tests/MiniMaxProviderTests.cs
@@ -52,9 +52,21 @@ public void WebStarterSettingsCoverModelsEndpointsAndCapabilities()
         foreach (var expected in ExpectedEndpoints)
         {
             var provider = providers.Single(x => x.Provider == expected.Key);
-            provider.Models.Select(x => x.Id).ShouldBe(["MiniMax-M3", "MiniMax-M2.7"]);
+            provider.Models.Select(x => x.Id).ShouldBe(["MiniMax-M3.1-Flash", "MiniMax-M3", "MiniMax-M2.7"]);
             provider.Models.ShouldAllBe(x => x.Endpoint == expected.Value);
 
+            var flash = provider.Models.Single(x => x.Id == "MiniMax-M3.1-Flash");
+            flash.ContextWindow.ShouldBe(1_000_000);
+            flash.MultiModal.ShouldBeTrue();
+            flash.InputModalities.ShouldBe(["text", "image", "video"]);
+            flash.Reasoning!.Parameters!["ThinkingType"].Default.ShouldBe("adaptive");
+            flash.Reasoning.Parameters["EffortLevel"].Default.ShouldBe("max");
+            flash.Reasoning.Parameters["EffortLevel"].Options.ShouldBe(["low", "medium", "high", "xhigh", "max"]);
+            flash.Cost.TextInputCost.ShouldBe(0.00015f);
+            flash.Cost.CachedTextInputCost.ShouldBe(0.000015f);
+            flash.Cost.TextOutputCost.ShouldBe(0.0006f);
+            flash.Cost.TextTokenCostTiers.ShouldBeNull();
+
             var m3 = provider.Models.Single(x => x.Id == "MiniMax-M3");
             m3.ContextWindow.ShouldBe(1_000_000);
             m3.MultiModal.ShouldBeTrue();