diff --git a/open-sse/config/providers/registry/zai/index.ts b/open-sse/config/providers/registry/zai/index.ts
index d02aa02029..e126aee21f 100644
--- a/open-sse/config/providers/registry/zai/index.ts
+++ b/open-sse/config/providers/registry/zai/index.ts
@@ -11,9 +11,18 @@ export const zaiProvider: RegistryEntry = {
   authType: "apikey",
   authHeader: "x-api-key",
   headers: getAnthropicCompatHeaders(),
+  // Real upstream model IDs only. The effort tiers (glm-5.2-high / glm-5.2-max)
+  // are intentionally NOT listed here: they are OmniRoute aliases resolved by the
+  // GlmExecutor (parseGlm52Effort → base "glm-5.2" + effort field). This provider
+  // uses the DefaultExecutor, which sends the model ID verbatim, so the aliases
+  // would reach z.ai's Anthropic endpoint as unknown IDs. Use the `glm` provider
+  // for effort tiers. Vision models are likewise omitted (handled elsewhere).
   models: [
+    { id: "glm-5.2", name: "GLM 5.2" },
     { id: "glm-5.1", name: "GLM 5.1" },
     { id: "glm-5", name: "GLM 5" },
     { id: "glm-5-turbo", name: "GLM 5 Turbo" },
+    { id: "glm-4.7-flash", name: "GLM 4.7 Flash" },
+    { id: "glm-4.7", name: "GLM 4.7" },
   ],
 };
diff --git a/tests/unit/zai-catalog-glm52.test.ts b/tests/unit/zai-catalog-glm52.test.ts
new file mode 100644
index 0000000000..41e8196c0b
--- /dev/null
+++ b/tests/unit/zai-catalog-glm52.test.ts
@@ -0,0 +1,55 @@
+import test from "node:test";
+import assert from "node:assert/strict";
+
+// Regression guard for the `zai` provider catalog (Anthropic-direct transport).
+//
+// GLM-5.2 shipped in v3.8.26 across the glm/glm-cn/glmt providers (via
+// GLM_SHARED_MODELS) but the curated `zai` provider subset was not updated and
+// still advertised only the GLM-5 line. This test pins the refreshed catalog and,
+// crucially, documents WHY the effort-tier aliases must NOT appear here.
+//
+// The `zai` provider uses the DefaultExecutor, which sends the requested model ID
+// verbatim. The effort tiers `glm-5.2-high` / `glm-5.2-max` are OmniRoute aliases
+// that only the GlmExecutor knows how to resolve (parseGlm52Effort → base model
+// "glm-5.2" + `effort` field + effort-2025-11-24 beta header). Listing them under
+// `zai` would send unknown model IDs to z.ai's Anthropic endpoint, so they belong
+// to the `glm` provider only.
+
+const { getRegistryEntry } = await import("../../open-sse/config/providerRegistry.ts");
+
+function modelIds(provider: string): string[] {
+  const entry = getRegistryEntry(provider);
+  assert.ok(entry, `provider "${provider}" should be registered`);
+  return (entry.models ?? []).map((m) => m.id);
+}
+
+test("zai provider advertises GLM-5.2 and GLM-4.7 base models", () => {
+  const ids = modelIds("zai");
+  for (const expected of ["glm-5.2", "glm-4.7", "glm-4.7-flash"]) {
+    assert.ok(ids.includes(expected), `zai should advertise ${expected}; got ${ids.join(", ")}`);
+  }
+});
+
+test("zai provider keeps the existing GLM-5 line", () => {
+  const ids = modelIds("zai");
+  for (const kept of ["glm-5.1", "glm-5", "glm-5-turbo"]) {
+    assert.ok(ids.includes(kept), `zai should still advertise ${kept}`);
+  }
+});
+
+test("zai provider does NOT advertise effort-tier aliases (DefaultExecutor cannot resolve them)", () => {
+  const ids = modelIds("zai");
+  for (const alias of ["glm-5.2-high", "glm-5.2-max"]) {
+    assert.ok(
+      !ids.includes(alias),
+      `zai must not list ${alias}: it is a GlmExecutor-only alias and would reach z.ai as an unknown model ID`
+    );
+  }
+});
+
+test("effort-tier aliases remain on the glm provider, where GlmExecutor resolves them", () => {
+  const ids = modelIds("glm");
+  for (const alias of ["glm-5.2", "glm-5.2-high", "glm-5.2-max"]) {
+    assert.ok(ids.includes(alias), `glm provider should expose ${alias}`);
+  }
+});