diff --git a/AgentCompany-New/src/main/services/provider-adapters.ts b/AgentCompany-New/src/main/services/provider-adapters.ts
index e073396b..fa5b3c05 100644
--- a/AgentCompany-New/src/main/services/provider-adapters.ts
+++ b/AgentCompany-New/src/main/services/provider-adapters.ts
@@ -357,10 +357,7 @@ export const providerAdapters: ProviderAdapterRegistry = {
     refresh: refreshUnsupported("Custom OpenAI-compatible endpoint"),
     revoke: revokeLocalProfile((profile) => { requireOpenAiCompatProfile(profile); }),
     parseAuthProfile: parseOpenAiCompatProfile,
-    listModels: (ctx) => {
-      const profile = requireOpenAiCompatProfile(ctx.authProfile);
-      return fetchOpenAiModels(`${profile.baseUrl}/models`, { authorization: `Bearer ${profile.apiKey}` });
-    },
+    listModels: () => listStaticModels("custom-openai"),
     getRateLimitState: providerRateLimitUnknown,
     streamResponse: streamUnsupported("Custom OpenAI-compatible endpoint"),
     cancelResponse: cancelUnsupported("Custom OpenAI-compatible endpoint"),
@@ -378,13 +375,7 @@ export const providerAdapters: ProviderAdapterRegistry = {
     refresh: refreshUnsupported("Custom Anthropic-compatible endpoint"),
     revoke: revokeLocalProfile((profile) => { requireAnthropicCompatProfile(profile); }),
     parseAuthProfile: parseAnthropicCompatProfile,
-    listModels: (ctx) => {
-      const profile = requireAnthropicCompatProfile(ctx.authProfile);
-      return fetchAnthropicModels(`${profile.baseUrl}/v1/models`, {
-        "x-api-key": profile.apiKey,
-        "anthropic-version": ANTHROPIC_VERSION,
-      });
-    },
+    listModels: () => listStaticModels("custom-anthropic"),
     getRateLimitState: providerRateLimitUnknown,
     streamResponse: streamUnsupported("Custom Anthropic-compatible endpoint"),
     cancelResponse: cancelUnsupported("Custom Anthropic-compatible endpoint"),
diff --git a/AgentCompany-New/src/renderer/src/app/Onboarding.tsx b/AgentCompany-New/src/renderer/src/app/Onboarding.tsx
index 7d1b61ba..412ef310 100644
--- a/AgentCompany-New/src/renderer/src/app/Onboarding.tsx
+++ b/AgentCompany-New/src/renderer/src/app/Onboarding.tsx
@@ -417,7 +417,7 @@ function ProviderCredentialFields({
 }
 
 function modelPlaceholder(live: boolean, isOAuthLike: boolean, loading: boolean): string {
-  if (!live) return "Type the model id (e.g. gpt-5.5)";
+  if (!live) return "Enter the model id";
   if (loading || isOAuthLike) return "Loading…";
   return "Click “Get models”, or type a model id";
 }
diff --git a/AgentCompany-New/src/shared/provider-catalog.ts b/AgentCompany-New/src/shared/provider-catalog.ts
index 29b339e2..dfa6d613 100644
--- a/AgentCompany-New/src/shared/provider-catalog.ts
+++ b/AgentCompany-New/src/shared/provider-catalog.ts
@@ -150,8 +150,10 @@ const RAW_CATALOG: Omit<ProviderCatalogEntry, "models" | "supportsLiveModels">[]
   },
 ];
 
-// Providers with no enumerable models endpoint: the Codex subscription and the
-// browser-token / cloud connectors. Their model id is entered as free text.
+// Providers with no enumerable models endpoint: the Codex subscription, the
+// browser-token / cloud connectors, and user-configured custom endpoints whose
+// model id is entered by hand. The UI offers a fixed dropdown (when a curated
+// list exists) or a free-text model id instead of a live fetch.
 const CURATED_MODEL_PROVIDERS = new Set([
   "github-copilot",
   "google-antigravity",
@@ -159,6 +161,8 @@ const CURATED_MODEL_PROVIDERS = new Set([
   "azure-openai",
   "aws-bedrock",
   "vertex-ai",
+  "custom-openai",
+  "custom-anthropic",
 ]);
 
 export const PROVIDER_CATALOG: ProviderCatalogEntry[] = RAW_CATALOG.map((entry) => ({
diff --git a/AgentCompany-New/tests/contract/provider-contracts.test.ts b/AgentCompany-New/tests/contract/provider-contracts.test.ts
index a38a69cd..782b1086 100644
--- a/AgentCompany-New/tests/contract/provider-contracts.test.ts
+++ b/AgentCompany-New/tests/contract/provider-contracts.test.ts
@@ -91,6 +91,7 @@ describe("provider contracts", () => {
   // catalog; the rest fetch live (covered offline by provider-models-fetch.test).
   const CURATED_MODEL_PROVIDERS = new Set([
     "github-copilot", "google-antigravity", "gpt-account", "azure-openai", "aws-bedrock", "vertex-ai",
+    "custom-openai", "custom-anthropic",
   ]);
 
   test("exposes model listing and rate limit adapter contracts", async () => {