diff --git a/src/agents/model-catalog.test.ts b/src/agents/model-catalog.test.ts
index 4e476386116..532d7dbcb30 100644
--- a/src/agents/model-catalog.test.ts
+++ b/src/agents/model-catalog.test.ts
@@ -162,4 +162,94 @@ describe("loadModelCatalog", () => {
       }),
     );
   });
+
+  it("normalizes configured provider aliases in merged catalog entries", async () => {
+    const cfg = {
+      models: {
+        providers: {
+          "z-ai": {
+            baseUrl: "https://api.z.ai/api/paas/v4/",
+            api: "openai-completions",
+            models: [
+              {
+                id: "glm-5:free",
+                name: "GLM-5 (Free)",
+                reasoning: true,
+                input: ["text"],
+                contextWindow: 202800,
+                maxTokens: 131072,
+                cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+              },
+            ],
+          },
+        },
+      },
+    } satisfies OpenClawConfig;
+
+    __setModelCatalogImportForTest(
+      async () =>
+        ({
+          AuthStorage: class {},
+          ModelRegistry: class {
+            getAll() {
+              return [];
+            }
+          },
+        }) as unknown as PiSdkModule,
+    );
+
+    const result = await loadModelCatalog({ config: cfg });
+    expect(result).toContainEqual(
+      expect.objectContaining({
+        provider: "zai",
+        id: "glm-5:free",
+      }),
+    );
+  });
+
+  it("dedupes discovered and configured entries using normalized provider aliases", async () => {
+    const cfg = {
+      models: {
+        providers: {
+          "z-ai": {
+            baseUrl: "https://api.z.ai/api/paas/v4/",
+            api: "openai-completions",
+            models: [
+              {
+                id: "glm-5:free",
+                name: "GLM-5 (Free)",
+                reasoning: true,
+                input: ["text"],
+                contextWindow: 202800,
+                maxTokens: 131072,
+                cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
+              },
+            ],
+          },
+        },
+      },
+    } satisfies OpenClawConfig;
+
+    __setModelCatalogImportForTest(
+      async () =>
+        ({
+          AuthStorage: class {},
+          ModelRegistry: class {
+            getAll() {
+              return [
+                {
+                  id: "glm-5:free",
+                  name: "GLM-5 (Free)",
+                  provider: "zai",
+                },
+              ];
+            }
+          },
+        }) as unknown as PiSdkModule,
+    );
+
+    const result = await loadModelCatalog({ config: cfg });
+    const matches = result.filter((entry) => entry.provider === "zai" && entry.id === "glm-5:free");
+    expect(matches).toHaveLength(1);
+  });
 });
diff --git a/src/agents/model-catalog.ts b/src/agents/model-catalog.ts
index dcf18e4528b..c3252d26fe7 100644
--- a/src/agents/model-catalog.ts
+++ b/src/agents/model-catalog.ts
@@ -2,6 +2,7 @@ import path from "node:path";
 import { type OpenClawConfig, loadConfig } from "../config/config.js";
 import { createSubsystemLogger } from "../logging/subsystem.js";
 import { resolveOpenClawAgentDir } from "./agent-paths.js";
+import { normalizeProviderId } from "./model-selection.js";
 import { ensureOpenClawModelsJson } from "./models-config.js";
 
 const log = createSubsystemLogger("model-catalog");
@@ -99,6 +100,25 @@ function normalizeInput(modalities: unknown): Array<"text" | "image"> | undefine
   return hasImage ? ["text", "image"] : ["text"];
 }
 
+function normalizeCatalogProvider(value: unknown): string {
+  if (typeof value !== "string") {
+    return "";
+  }
+  const trimmed = value.trim();
+  if (!trimmed) {
+    return "";
+  }
+  return normalizeProviderId(trimmed);
+}
+
+function modelCatalogMergeKey(entry: Pick<ModelCatalogEntry, "provider" | "id">): string {
+  const provider = normalizeCatalogProvider(entry.provider);
+  const id = String(entry.id ?? "")
+    .trim()
+    .toLowerCase();
+  return `${provider}/${id}`;
+}
+
 function readConfiguredModelsFromConfig(cfg: OpenClawConfig): ModelCatalogEntry[] {
   const providers = cfg.models?.providers;
   if (!providers) {
@@ -106,7 +126,7 @@ function readConfiguredModelsFromConfig(cfg: OpenClawConfig): ModelCatalogEntry[
   }
   const entries: ModelCatalogEntry[] = [];
   for (const [providerIdRaw, providerValue] of Object.entries(providers)) {
-    const provider = String(providerIdRaw ?? "").trim();
+    const provider = normalizeCatalogProvider(providerIdRaw);
     if (!provider || !providerValue) {
       continue;
     }
@@ -140,12 +160,10 @@ function mergeMissingCatalogEntries(
   discoveredModels: ModelCatalogEntry[],
   configuredModels: ModelCatalogEntry[],
 ): ModelCatalogEntry[] {
-  const seen = new Set(
-    discoveredModels.map((entry) => `${entry.provider.toLowerCase()}/${entry.id.toLowerCase()}`),
-  );
+  const seen = new Set(discoveredModels.map((entry) => modelCatalogMergeKey(entry)));
   const merged = [...discoveredModels];
   for (const entry of configuredModels) {
-    const key = `${entry.provider.toLowerCase()}/${entry.id.toLowerCase()}`;
+    const key = modelCatalogMergeKey(entry);
     if (seen.has(key)) {
       continue;
     }
@@ -205,7 +223,7 @@ export async function loadModelCatalog(params?: {
         if (!id) {
           continue;
         }
-        const provider = String(entry?.provider ?? "").trim();
+        const provider = normalizeCatalogProvider(entry?.provider);
         if (!provider) {
           continue;
         }