From 22f4c2e2703e8653e255b31e55ddc0b824fdb18c Mon Sep 17 00:00:00 2001
From: Dayuan Jiang <34411969+DayuanJiang@users.noreply.github.com>
Date: Fri, 9 Jan 2026 13:21:34 +0900
Subject: [PATCH] fix: update SiliconFlow default endpoint to .cn (#543)

SiliconFlow is transitioning from .com to .cn domain. The .cn endpoint
uses Global Traffic Manager (GTM) for better global access, while .com
is being phased out.
---
 app/api/validate-model/route.ts | 2 +-
 lib/ai-providers.ts             | 4 ++--
 lib/types/model-config.ts       | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/app/api/validate-model/route.ts b/app/api/validate-model/route.ts
index 79e9369..b8b258e 100644
--- a/app/api/validate-model/route.ts
+++ b/app/api/validate-model/route.ts
@@ -202,7 +202,7 @@ export async function POST(req: Request) {
             case "siliconflow": {
                 const sf = createOpenAI({
                     apiKey,
-                    baseURL: baseUrl || "https://api.siliconflow.com/v1",
+                    baseURL: baseUrl || "https://api.siliconflow.cn/v1",
                 })
                 model = sf.chat(modelId)
                 break
diff --git a/lib/ai-providers.ts b/lib/ai-providers.ts
index 3513159..806493d 100644
--- a/lib/ai-providers.ts
+++ b/lib/ai-providers.ts
@@ -464,7 +464,7 @@ function validateProviderCredentials(provider: ProviderName): void {
  * - DEEPSEEK_API_KEY: DeepSeek API key
  * - DEEPSEEK_BASE_URL: DeepSeek endpoint (optional)
  * - SILICONFLOW_API_KEY: SiliconFlow API key
- * - SILICONFLOW_BASE_URL: SiliconFlow endpoint (optional, defaults to https://api.siliconflow.com/v1)
+ * - SILICONFLOW_BASE_URL: SiliconFlow endpoint (optional, defaults to https://api.siliconflow.cn/v1)
  * - SGLANG_API_KEY: SGLang API key
  * - SGLANG_BASE_URL: SGLang endpoint (optional)
  * - MODELSCOPE_API_KEY: ModelScope API key
@@ -721,7 +721,7 @@ export function getAIModel(overrides?: ClientOverrides): ModelConfig {
             const baseURL =
                 overrides?.baseUrl ||
                 process.env.SILICONFLOW_BASE_URL ||
-                "https://api.siliconflow.com/v1"
+                "https://api.siliconflow.cn/v1"
             const siliconflowProvider = createOpenAI({
                 apiKey,
                 baseURL,
diff --git a/lib/types/model-config.ts b/lib/types/model-config.ts
index 1699953..9e38368 100644
--- a/lib/types/model-config.ts
+++ b/lib/types/model-config.ts
@@ -80,7 +80,7 @@ export const PROVIDER_INFO: Record<
     deepseek: { label: "DeepSeek" },
     siliconflow: {
         label: "SiliconFlow",
-        defaultBaseUrl: "https://api.siliconflow.com/v1",
+        defaultBaseUrl: "https://api.siliconflow.cn/v1",
     },
     sglang: {
         label: "SGLang",