feat(ai): add Mistral Medium 3.5 model (#4009)

packages/ai/scripts/generate-models.ts

@@ -1279,6 +1279,27 @@ async function generateModels() {
 		});
 	}
 
+	// Add missing Mistral Medium 3.5 model until models.dev includes it
+	if (!allModels.some(m => m.provider === "mistral" && m.id === "mistral-medium-3.5")) {
+		allModels.push({
+			id: "mistral-medium-3.5",
+			name: "Mistral Medium 3.5",
+			api: "mistral-conversations",
+			provider: "mistral",
+			baseUrl: "https://api.mistral.ai",
+			reasoning: true,
+			input: ["text", "image"],
+			cost: {
+				input: 1.5,
+				output: 7.5,
+				cacheRead: 0,
+				cacheWrite: 0,
+			},
+			contextWindow: 262144, // 256k tokens
+			maxTokens: 262144,
+		});
+	}
+
 	// Add "auto" alias for openrouter/auto
 	if (!allModels.some(m => m.provider === "openrouter" && m.id === "auto")) {
 		allModels.push({