**feat(registry): add Gemini 3 Pro Preview model definition**

internal/registry/model_definitions.go

@@ -114,7 +114,7 @@ func GeminiModels() []*ModelInfo {
 			InputTokenLimit:            1048576,
 			OutputTokenLimit:           65536,
 			SupportedGenerationMethods: []string{"generateContent", "countTokens", "createCachedContent", "batchGenerateContent"},
-			Thinking:                   &ThinkingSupport{Min: 512, Max: 24576, ZeroAllowed: true, DynamicAllowed: true},
+			Thinking:                   &ThinkingSupport{Min: 0, Max: 24576, ZeroAllowed: true, DynamicAllowed: true},
 		},
 	}
 }
@@ -156,20 +156,35 @@ func GetGeminiCLIModels() []*ModelInfo {
 			Thinking:                   &ThinkingSupport{Min: 128, Max: 32768, ZeroAllowed: false, DynamicAllowed: true},
 		},
 		{
-			ID:                         "gemini-3-pro-preview-11-2025",
+			ID:                         "gemini-2.5-flash-lite",
 			Object:                     "model",
 			Created:                    time.Now().Unix(),
 			OwnedBy:                    "google",
 			Type:                       "gemini",
-			Name:                       "models/gemini-3-pro-preview-11-2025",
-			Version:                    "3",
-			DisplayName:                "Gemini 3 Pro Preview 11-2025",
-			Description:                "Latest preview of Gemini Pro",
+			Name:                       "models/gemini-2.5-flash-lite",
+			Version:                    "2.5",
+			DisplayName:                "Gemini 2.5 Flash Lite",
+			Description:                "Our smallest and most cost effective model, built for at scale usage.",
 			InputTokenLimit:            1048576,
 			OutputTokenLimit:           65536,
 			SupportedGenerationMethods: []string{"generateContent", "countTokens", "createCachedContent", "batchGenerateContent"},
-			Thinking:                   &ThinkingSupport{Min: 128, Max: 32768, ZeroAllowed: false, DynamicAllowed: true},
+			Thinking:                   &ThinkingSupport{Min: 0, Max: 24576, ZeroAllowed: true, DynamicAllowed: true},
 		},
+		// {
+		// 	ID:                         "gemini-3-pro-preview-11-2025",
+		// 	Object:                     "model",
+		// 	Created:                    time.Now().Unix(),
+		// 	OwnedBy:                    "google",
+		// 	Type:                       "gemini",
+		// 	Name:                       "models/gemini-3-pro-preview-11-2025",
+		// 	Version:                    "3",
+		// 	DisplayName:                "Gemini 3 Pro Preview 11-2025",
+		// 	Description:                "Latest preview of Gemini Pro",
+		// 	InputTokenLimit:            1048576,
+		// 	OutputTokenLimit:           65536,
+		// 	SupportedGenerationMethods: []string{"generateContent", "countTokens", "createCachedContent", "batchGenerateContent"},
+		// 	Thinking:                   &ThinkingSupport{Min: 128, Max: 32768, ZeroAllowed: false, DynamicAllowed: true},
+		// },
 	}
 }
 
@@ -179,6 +194,21 @@ func GetAIStudioModels() []*ModelInfo {
 
 	return append(base,
 		[]*ModelInfo{
+			{
+				ID:                         "gemini-3-pro-preview",
+				Object:                     "model",
+				Created:                    time.Now().Unix(),
+				OwnedBy:                    "google",
+				Type:                       "gemini",
+				Name:                       "models/gemini-3-pro-preview",
+				Version:                    "3.0",
+				DisplayName:                "Gemini 3 Pro Preview",
+				Description:                "Gemini 3 Pro Preview",
+				InputTokenLimit:            1048576,
+				OutputTokenLimit:           65536,
+				SupportedGenerationMethods: []string{"generateContent", "countTokens", "createCachedContent", "batchGenerateContent"},
+				Thinking:                   &ThinkingSupport{Min: 128, Max: 32768, ZeroAllowed: false, DynamicAllowed: true},
+			},
 			{
 				ID:                         "gemini-pro-latest",
 				Object:                     "model",