fix(ai): exclude nonexistent GPT-5.6 alias

packages/ai/scripts/generate-models.ts

@@ -193,6 +193,8 @@ const ANT_LING_RING_THINKING_LEVEL_MAP = {
 	xhigh: "xhigh",
 } as const;
 
+const MODELS_DEV_OPENAI_UNSUPPORTED_MODEL_IDS = new Set(["gpt-5.6"]);
+
 const OPENAI_RESPONSES_NONE_REASONING_MODELS = new Set([
 	"gpt-5.1",
 	"gpt-5.2",
@@ -201,7 +203,6 @@ const OPENAI_RESPONSES_NONE_REASONING_MODELS = new Set([
 	"gpt-5.4-mini",
 	"gpt-5.4-nano",
 	"gpt-5.5",
-	"gpt-5.6",
 	"gpt-5.6-sol",
 	"gpt-5.6-terra",
 	"gpt-5.6-luna",
@@ -905,6 +906,8 @@ async function loadModelsDevData(): Promise<Model<any>[]> {
 			for (const [modelId, model] of Object.entries(data.openai.models)) {
 				const m = model as ModelsDevModel;
 				if (m.tool_call !== true) continue;
+				// models.dev lists this alias, but it is not accepted by OpenAI APIs.
+				if (MODELS_DEV_OPENAI_UNSUPPORTED_MODEL_IDS.has(modelId)) continue;
 
 				models.push({
 					id: modelId,
@@ -1713,18 +1716,6 @@ async function generateModels() {
 
 	// Add missing gpt models
 	const missingOpenAiModels: Model<"openai-responses">[] = [
-		{
-			id: "gpt-5.6",
-			name: "GPT-5.6",
-			api: "openai-responses",
-			baseUrl: "https://api.openai.com/v1",
-			provider: "openai",
-			reasoning: true,
-			input: ["text", "image"],
-			cost: { input: 5, output: 30, cacheRead: 0.5, cacheWrite: 0 },
-			contextWindow: 1050000,
-			maxTokens: 128000,
-		},
 		{
 			id: "gpt-5.6-sol",
 			name: "GPT-5.6 Sol",