diff --git a/src/renderer/locales/de/messages.po b/src/renderer/locales/de/messages.po
index 0aaaa5e8c..83a29f72e 100644
--- a/src/renderer/locales/de/messages.po
+++ b/src/renderer/locales/de/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Gitignorierte Dateien zum Kopieren aus dem Hauptprojekt in jeden neuen Arbeitsbaum. Muster im Gitignore-Stil, eines pro Zeile (z. B. <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (optionale Beschriftung)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (optionale Beschriftung)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/en/messages.po b/src/renderer/locales/en/messages.po
index 8e61d83d8..ef7351a90 100644
--- a/src/renderer/locales/en/messages.po
+++ b/src/renderer/locales/en/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Gitignored files to copy from the main project into each new worktree. Gitignore-style patterns, one per line (e.g., <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (optional label)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (optional label)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/es/messages.po b/src/renderer/locales/es/messages.po
index 90275dbcb..3680b9159 100644
--- a/src/renderer/locales/es/messages.po
+++ b/src/renderer/locales/es/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Archivos ignorados por Git para copiar del proyecto principal a cada nuevo worktree. Patrones estilo gitignore, uno por línea (p. ej., <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (etiqueta opcional)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (etiqueta opcional)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/fr/messages.po b/src/renderer/locales/fr/messages.po
index ccd43ac7f..8ca296a05 100644
--- a/src/renderer/locales/fr/messages.po
+++ b/src/renderer/locales/fr/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Fichiers Gitignorés à copier du projet principal dans chaque nouvel arbre de travail. Modèles de style Gitignore, un par ligne (par exemple, <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (libellé optionnel)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (libellé optionnel)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/ja/messages.po b/src/renderer/locales/ja/messages.po
index a839d9a4f..32c8c1f24 100644
--- a/src/renderer/locales/ja/messages.po
+++ b/src/renderer/locales/ja/messages.po
@@ -5576,8 +5576,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "メイン プロジェクトから各新しいワークツリーにコピーする、Gitignored ファイル。 Gitignore スタイルのパターン、1 行に 1 つ (例: <0>.env.*</0>)。"
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2（任意のラベル）"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3（任意のラベル）"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/ko/messages.po b/src/renderer/locales/ko/messages.po
index c36c20024..05897fd79 100644
--- a/src/renderer/locales/ko/messages.po
+++ b/src/renderer/locales/ko/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "기본 프로젝트에서 각각의 새 작업 트리로 복사할 Gitignored 파일입니다. Gitignore 스타일 패턴, 한 줄에 하나씩(예: <0>.env.*</0>)"
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (선택 레이블)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (선택 레이블)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/pl/messages.po b/src/renderer/locales/pl/messages.po
index 230b25abf..6955929d5 100644
--- a/src/renderer/locales/pl/messages.po
+++ b/src/renderer/locales/pl/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Pliki ignorowane przez Git do skopiowania z głównego projektu do każdego nowego drzewa roboczego. Wzorce w stylu Gitignore, po jednym w wierszu (np. <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (etykieta opcjonalna)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (etykieta opcjonalna)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/pt-BR/messages.po b/src/renderer/locales/pt-BR/messages.po
index 3841aff4c..8a4f8e363 100644
--- a/src/renderer/locales/pt-BR/messages.po
+++ b/src/renderer/locales/pt-BR/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Arquivos gitignorados para copiar do projeto principal para cada nova árvore de trabalho. Padrões estilo Gitignore, um por linha (por exemplo, <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (rótulo opcional)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (rótulo opcional)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/ru/messages.po b/src/renderer/locales/ru/messages.po
index e16b3255e..d6e4c7443 100644
--- a/src/renderer/locales/ru/messages.po
+++ b/src/renderer/locales/ru/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Игнорируемые Git файлы для копирования из основного проекта в каждый новый worktree. Шаблоны в стиле gitignore, по одному на строку (напр., <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (необязательная метка)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (необязательная метка)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/tr/messages.po b/src/renderer/locales/tr/messages.po
index 3f70d1b5a..5164307b8 100644
--- a/src/renderer/locales/tr/messages.po
+++ b/src/renderer/locales/tr/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Ana projeden her yeni çalışma ağacına kopyalanacak Git yok sayılan dosyalar. Gitignore tarzı desenler, her satıra bir tane (ör. <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (isteğe bağlı etiket)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (isteğe bağlı etiket)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/uk/messages.po b/src/renderer/locales/uk/messages.po
index a70fc6f49..e6e3d2c28 100644
--- a/src/renderer/locales/uk/messages.po
+++ b/src/renderer/locales/uk/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Ігноровані Git файли для копіювання з основного проєкту до кожного нового worktree. Шаблони у стилі gitignore, по одному на рядок (напр., <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (необов'язкова мітка)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (необов'язкова мітка)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/vi/messages.po b/src/renderer/locales/vi/messages.po
index 2d145e51a..60b03ec12 100644
--- a/src/renderer/locales/vi/messages.po
+++ b/src/renderer/locales/vi/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Các tệp được Gitignored để sao chép từ dự án chính vào từng cây làm việc mới. Các mẫu kiểu Gitignore, mỗi mẫu một dòng (ví dụ: <0>.env.*</0>)."
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2 (nhãn tùy chọn)"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3 (nhãn tùy chọn)"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/locales/zh-CN/messages.po b/src/renderer/locales/zh-CN/messages.po
index aaacd5085..bad2c3e12 100644
--- a/src/renderer/locales/zh-CN/messages.po
+++ b/src/renderer/locales/zh-CN/messages.po
@@ -5577,8 +5577,8 @@ msgid "Gitignored files to copy from the main project into each new worktree. Gi
 msgstr "Gitignored 文件从主项目复制到每个新工作树中。 Gitignore 风格的模式，每行一个（例如 <0>.env.*</0>）。"
 
 #: src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
-msgid "GLM 5.2 (optional label)"
-msgstr "GLM 5.2（可选标签）"
+msgid "GLM 5.3 (optional label)"
+msgstr "GLM 5.3（可选标签）"
 
 #: src/renderer/views/SettingsOverlay/parts/cursorRuntimeInstall.ts
 msgid "global"
diff --git a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.test.tsx b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.test.tsx
index 4af72d0fe..9d4662faf 100644
--- a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.test.tsx
+++ b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.test.tsx
@@ -357,14 +357,17 @@ describe("ClaudeProfileProviderSettings", () => {
     expect(screen.getByDisplayValue("https://api.z.ai/api/anthropic")).toBeInTheDocument();
     expect(screen.getByDisplayValue("ANTHROPIC_AUTH_TOKEN")).toBeInTheDocument();
     expect(screen.getByDisplayValue("CLAUDE_CODE_AUTO_COMPACT_WINDOW")).toBeInTheDocument();
-    // The preset's GLM 5.2 picker model id keeps its [1m] suffix verbatim.
-    expect(screen.getByLabelText("Model id")).toHaveValue("glm-5.2[1m]");
+    // The preset's GLM 5.3 picker model ids keep their [1m] suffix verbatim.
+    expect(
+      screen.getAllByLabelText("Model id").map((input) => input.getAttribute("value")),
+    ).toEqual(["glm-5.3[1m]", "glm-5.3-flash[1m]"]);
     expect(settingsState.setHiddenModels).toHaveBeenCalledWith("claude:glm", [
       "claude-opus-4-8",
       "claude-opus-4-7",
       "claude-opus-4-6",
       "sonnet",
       "haiku",
+      "glm-5.2[1m]",
     ]);
   });
 
diff --git a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
index cb00f7d44..8dcf13c88 100644
--- a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
+++ b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettings.tsx
@@ -535,14 +535,14 @@ function ClaudeProfileEditor(props: {
               <Input
                 aria-label={t`Model id`}
                 className="min-w-48 flex-[1_1_12rem] font-mono text-xs"
-                placeholder="glm-5.2[1m]"
+                placeholder="glm-5.3[1m]"
                 value={row.id}
                 onChange={(event) => updateModelRow(row.rowId, { id: event.target.value })}
               />
               <Input
                 aria-label={t`Model label`}
                 className="min-w-48 flex-[1_1_12rem] text-xs"
-                placeholder={t`GLM 5.2 (optional label)`}
+                placeholder={t`GLM 5.3 (optional label)`}
                 value={row.label}
                 onChange={(event) => updateModelRow(row.rowId, { label: event.target.value })}
               />
diff --git a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.test.ts b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.test.ts
index 8dea43cd2..7da88fee5 100644
--- a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.test.ts
+++ b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.test.ts
@@ -94,9 +94,9 @@ describe("ClaudeProfileSettingsModel", () => {
         applyPresetEnvRows(ZAI_PRESET_ROWS, [], nextRowId).map((row) => [row.key, row.value]),
       );
       expect(byKey.ANTHROPIC_BASE_URL).toBe("https://api.z.ai/api/anthropic");
-      expect(byKey.ANTHROPIC_DEFAULT_OPUS_MODEL).toBe("glm-5.2[1m]");
-      expect(byKey.ANTHROPIC_DEFAULT_SONNET_MODEL).toBe("glm-5.2[1m]");
-      expect(byKey.ANTHROPIC_DEFAULT_HAIKU_MODEL).toBe("glm-4.5-air");
+      expect(byKey.ANTHROPIC_DEFAULT_OPUS_MODEL).toBe("glm-5.3[1m]");
+      expect(byKey.ANTHROPIC_DEFAULT_SONNET_MODEL).toBe("glm-5.3-flash[1m]");
+      expect(byKey.ANTHROPIC_DEFAULT_HAIKU_MODEL).toBe("glm-5.3-flash[1m]");
       expect(byKey.CLAUDE_CODE_AUTO_COMPACT_WINDOW).toBe("1000000");
     });
 
@@ -212,7 +212,7 @@ describe("ClaudeProfileSettingsModel", () => {
         applyPresetEnvRows(ZAI_PRESET_ROWS, existing, nextRowId).map((r) => [r.key, r]),
       );
 
-      expect(byKey.get("ANTHROPIC_DEFAULT_OPUS_MODEL")?.value).toBe("glm-5.2[1m]");
+      expect(byKey.get("ANTHROPIC_DEFAULT_OPUS_MODEL")?.value).toBe("glm-5.3[1m]");
       expect(byKey.get("ANTHROPIC_AUTH_TOKEN")?.value).toBe("lc-safe:v1:sealed");
       expect(byKey.get("MY_CUSTOM")?.value).toBe("keep");
     });
diff --git a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.ts b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.ts
index 7878bcd25..7547a2237 100644
--- a/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.ts
+++ b/src/renderer/views/SettingsOverlay/parts/ClaudeProfileSettingsModel.ts
@@ -21,16 +21,19 @@ export type PresetEnvRow = { key: string; value: string; sensitive: boolean };
 
 /**
  * Canonical z.ai (GLM) environment, per https://docs.z.ai/devpack/tool/claude.
- * `glm-5.2[1m]` is z.ai's real model name for the 1M-context GLM 5.2 — the `[1m]`
+ * `glm-5.3[1m]` is z.ai's real model name for the 1M-context GLM 5.3 — the `[1m]`
  * is part of the id, not Poracode's context selector, so it is sent verbatim.
+ * `glm-5.3-flash[1m]` is the cheaper tier; z.ai lists Flash as its default
+ * mapping for the Sonnet/Haiku slots (its manual-config example keeps the full
+ * model on Sonnet) — we follow the default mapping.
  * `CLAUDE_CODE_AUTO_COMPACT_WINDOW` is required for the 1M context to be usable.
  */
 export const ZAI_PRESET_ROWS: ReadonlyArray<PresetEnvRow> = [
   { key: "ANTHROPIC_BASE_URL", value: "https://api.z.ai/api/anthropic", sensitive: false },
   { key: "ANTHROPIC_AUTH_TOKEN", value: "", sensitive: true },
-  { key: "ANTHROPIC_DEFAULT_OPUS_MODEL", value: "glm-5.2[1m]", sensitive: false },
-  { key: "ANTHROPIC_DEFAULT_SONNET_MODEL", value: "glm-5.2[1m]", sensitive: false },
-  { key: "ANTHROPIC_DEFAULT_HAIKU_MODEL", value: "glm-4.5-air", sensitive: false },
+  { key: "ANTHROPIC_DEFAULT_OPUS_MODEL", value: "glm-5.3[1m]", sensitive: false },
+  { key: "ANTHROPIC_DEFAULT_SONNET_MODEL", value: "glm-5.3-flash[1m]", sensitive: false },
+  { key: "ANTHROPIC_DEFAULT_HAIKU_MODEL", value: "glm-5.3-flash[1m]", sensitive: false },
   { key: "API_TIMEOUT_MS", value: "3000000", sensitive: false },
   { key: "CLAUDE_CODE_AUTO_COMPACT_WINDOW", value: "1000000", sensitive: false },
 ];
@@ -154,11 +157,17 @@ export const PROFILE_PRESETS: readonly ProfilePreset[] = [
     id: "zai",
     label: msg`z.ai`,
     envRows: ZAI_PRESET_ROWS,
-    // glm-5.2[1m] is z.ai's 1M-context GLM 5.2 (the `[1m]` is part of the id).
-    models: [{ id: "glm-5.2[1m]", label: "GLM 5.2" }],
-    efforts: ["high", "max", "ultracode"],
+    // glm-5.3[1m] is z.ai's 1M-context GLM 5.3 (the `[1m]` is part of the id).
+    models: [
+      { id: "glm-5.3[1m]", label: "GLM 5.3" },
+      { id: "glm-5.3-flash[1m]", label: "GLM 5.3 Flash" },
+    ],
+    efforts: ["low", "high", "max", "ultracode"],
     defaultEffort: "high",
-    modelEfforts: { "glm-5.2[1m]": ["high", "max", "ultracode"] },
+    modelEfforts: {
+      "glm-5.3[1m]": ["low", "high", "max", "ultracode"],
+      "glm-5.3-flash[1m]": ["low", "high", "max", "ultracode"],
+    },
   },
   {
     id: "deepseek",