diff --git a/src/pages/llmodels/components/deployment/deploy-modal.tsx b/src/pages/llmodels/components/deployment/deploy-modal.tsx
index 0a2f9255..b9922ba1 100644
--- a/src/pages/llmodels/components/deployment/deploy-modal.tsx
+++ b/src/pages/llmodels/components/deployment/deploy-modal.tsx
@@ -78,7 +78,12 @@ type AddModalProps = {
   deploymentType?: 'modelList' | 'modelFiles';
   clusterList: Global.BaseOption<
     number,
-    { provider: string; state: string | number; is_default: boolean }
+    {
+      provider: string;
+      state: string | number;
+      is_default: boolean;
+      owner_principal_id?: number;
+    }
   >[];
   onOk: (values: FormData) => void;
   onCancel: () => void;
@@ -458,15 +463,24 @@ const AddModal: FC<AddModalProps> = (props) => {
     if (initialValues?.cluster_id) {
       return initialValues.cluster_id;
     }
+    // When a platform admin has targeted an org via the create-scope picker,
+    // seed the cluster from that org's own clusters so the initial selection
+    // matches the (org-filtered) dropdown the form renders.
+    const scopeOrgId = form.current?.getFieldValue?.('organization_id');
+    const scopedList =
+      scopeOrgId == null
+        ? clusterList
+        : clusterList?.filter((item) => item.owner_principal_id === scopeOrgId);
+
     // Find default cluster
-    const defaultCluster = clusterList?.find((item) => item.is_default);
+    const defaultCluster = scopedList?.find((item) => item.is_default);
     if (defaultCluster) {
       return defaultCluster.value;
     }
 
     const cluster_id =
-      clusterList?.find((item) => item.state === ClusterStatusValueMap.Ready)
-        ?.value || clusterList?.[0]?.value;
+      scopedList?.find((item) => item.state === ClusterStatusValueMap.Ready)
+        ?.value || scopedList?.[0]?.value;
 
     return cluster_id;
   };
diff --git a/src/pages/llmodels/components/download/target-form.tsx b/src/pages/llmodels/components/download/target-form.tsx
index dc392282..bc52319e 100644
--- a/src/pages/llmodels/components/download/target-form.tsx
+++ b/src/pages/llmodels/components/download/target-form.tsx
@@ -1,3 +1,4 @@
+import PluginExtraFields from '@/components/plugin-extra-fields';
 import { ModelFileFormData as FormData } from '@/pages/resources/config/types';
 import {
   Input as CInput,
@@ -14,7 +15,8 @@ import React, {
   forwardRef,
   useEffect,
   useImperativeHandle,
-  useMemo
+  useMemo,
+  useRef
 } from 'react';
 import { localPathTipsList, modelSourceMap, sourceOptions } from '../../config';
 import { useGenerateWorkersModelFileOptions } from '../../hooks';
@@ -55,6 +57,20 @@ const TargetForm: React.FC<TargetFormProps> = forwardRef((props, ref) => {
   const intl = useIntl();
   const [form] = Form.useForm();
   const localPath = Form.useWatch('local_path', form);
+  // Owned by the create-scope picker slot (admin "All" view). When set, scope
+  // the worker picker to clusters owned by that org — a model file's owner is
+  // derived from the target worker's cluster, so this keeps them aligned.
+  const scopeOrgId = Form.useWatch('organization_id', form);
+  const prevScopeRef = useRef<number | null | undefined>(undefined);
+
+  const visibleWorkerOptions = useMemo(() => {
+    if (scopeOrgId == null) {
+      return workerOptions;
+    }
+    return (workerOptions || []).filter(
+      (cluster: any) => cluster.owner_principal_id === scopeOrgId
+    );
+  }, [workerOptions, scopeOrgId]);
 
   useEffect(() => {
     const init = async () => {
@@ -68,6 +84,19 @@ const TargetForm: React.FC<TargetFormProps> = forwardRef((props, ref) => {
     init();
   }, [workersList]);
 
+  // On a genuine org change, drop the now-out-of-scope worker selection.
+  useEffect(() => {
+    if (prevScopeRef.current === undefined) {
+      prevScopeRef.current = scopeOrgId;
+      return;
+    }
+    if (prevScopeRef.current === scopeOrgId) {
+      return;
+    }
+    prevScopeRef.current = scopeOrgId;
+    form.setFieldValue('worker_id', undefined);
+  }, [scopeOrgId]);
+
   useImperativeHandle(ref, () => ({
     form
   }));
@@ -183,6 +212,10 @@ const TargetForm: React.FC<TargetFormProps> = forwardRef((props, ref) => {
             ></SealSelect>
           }
         </Form.Item>
+        <PluginExtraFields
+          name="CreateOrgScopeField"
+          context={{ action: 'create' }}
+        />
         {renderFieldsBySource}
         <Form.Item
           name="worker_id"
@@ -212,7 +245,7 @@ const TargetForm: React.FC<TargetFormProps> = forwardRef((props, ref) => {
             }}
             maxTagCount={1}
             label={intl.formatMessage({ id: 'resources.worker' })}
-            options={workerOptions}
+            options={visibleWorkerOptions}
             showCheckedStrategy="SHOW_CHILD"
             optionNode={renderOptionNode}
             getPopupContainer={(triggerNode) => triggerNode.parentNode}
diff --git a/src/pages/llmodels/forms/basic.tsx b/src/pages/llmodels/forms/basic.tsx
index bddb56a4..b76b1e7d 100644
--- a/src/pages/llmodels/forms/basic.tsx
+++ b/src/pages/llmodels/forms/basic.tsx
@@ -1,3 +1,4 @@
+import PluginExtraFields from '@/components/plugin-extra-fields';
 import { modelNameReg, PageAction } from '@/config';
 import { OPENAI_COMPATIBLE } from '@/config/settings';
 import {
@@ -12,7 +13,7 @@ import {
 } from '@gpustack/core-ui';
 import { useIntl } from '@umijs/max';
 import { Form } from 'antd';
-import { useMemo } from 'react';
+import { useEffect, useMemo, useRef } from 'react';
 import styled from 'styled-components';
 import { DeployFormKeyMap, sourceOptions } from '../config';
 import { useFormContext } from '../config/form-context';
@@ -76,6 +77,7 @@ interface BasicFormProps {
       provider: string;
       state: string;
       is_default: boolean;
+      owner_principal_id?: number;
       workers: number;
       ready_workers: number;
       gpus: number;
@@ -109,20 +111,65 @@ const BasicForm: React.FC<BasicFormProps> = (props) => {
     }
   };
 
+  // `organization_id` is owned by the create-scope picker slot; it only
+  // appears when a platform admin is in the "All" view. When set, scope the
+  // cluster dropdown to that org's own clusters — the backend derives the
+  // deployment's owner from the chosen cluster, so this keeps them aligned.
+  const scopeOrgId = Form.useWatch('organization_id', form);
+  const prevScopeRef = useRef<number | null | undefined>(undefined);
+
   const clusterOptions = useMemo(() => {
-    return clusterList?.map((item) => {
-      return {
-        label:
-          item.state === ClusterStatusValueMap.Ready
-            ? item.label
-            : `${item.label} [${ClusterStatusLabelMap[item.state as string]}]`,
-        value: item.value,
-        workers: item.workers,
-        ready_workers: item.ready_workers,
-        gpus: item.gpus
-      };
-    });
-  }, [clusterList]);
+    return clusterList
+      ?.filter((item) =>
+        scopeOrgId == null ? true : item.owner_principal_id === scopeOrgId
+      )
+      .map((item) => {
+        return {
+          label:
+            item.state === ClusterStatusValueMap.Ready
+              ? item.label
+              : `${item.label} [${ClusterStatusLabelMap[item.state as string]}]`,
+          value: item.value,
+          state: item.state,
+          is_default: item.is_default,
+          workers: item.workers,
+          ready_workers: item.ready_workers,
+          gpus: item.gpus
+        };
+      });
+  }, [clusterList, scopeOrgId]);
+
+  // On a genuine org change (not the initial value — the modal's open
+  // handler seeds the first cluster), drop a now-out-of-scope cluster and
+  // re-pick within the new org so GPU/backend options refetch for it.
+  useEffect(() => {
+    if (prevScopeRef.current === undefined) {
+      prevScopeRef.current = scopeOrgId;
+      return;
+    }
+    if (prevScopeRef.current === scopeOrgId) {
+      return;
+    }
+    prevScopeRef.current = scopeOrgId;
+
+    const current = form.getFieldValue('cluster_id');
+    const stillValid = clusterOptions?.some((c) => c.value === current);
+    if (stillValid) {
+      return;
+    }
+    const next =
+      clusterOptions?.find((c) => c.is_default)?.value ??
+      clusterOptions?.find((c) => c.state === ClusterStatusValueMap.Ready)
+        ?.value ??
+      clusterOptions?.[0]?.value ??
+      null;
+    form.setFieldValue('cluster_id', next ?? null);
+    if (next != null) {
+      handleClusterChange?.(next as number);
+    }
+    // The prevScopeRef guard above makes this a no-op unless scopeOrgId
+    // actually changed, so listing the other deps is safe (no extra runs).
+  }, [scopeOrgId, clusterOptions, form, handleClusterChange]);
 
   const clusterOptionRender = (option: any) => {
     const { data } = option;
@@ -181,6 +228,7 @@ const BasicForm: React.FC<BasicFormProps> = (props) => {
           required
         ></CInput.Input>
       </Form.Item>
+      <PluginExtraFields name="CreateOrgScopeField" context={{ action }} />
 
       <Form.Item<FormData>
         name="source"
diff --git a/src/pages/llmodels/hooks/use-form-initial-values.ts b/src/pages/llmodels/hooks/use-form-initial-values.ts
index d3ed75af..d5b97b02 100644
--- a/src/pages/llmodels/hooks/use-form-initial-values.ts
+++ b/src/pages/llmodels/hooks/use-form-initial-values.ts
@@ -145,7 +145,10 @@ export const useGenerateWorkerOptions = () => {
     CascaderOption<{ state: string }>[]
   >([]);
   const [clusterList, setClusterList] = useState<
-    Global.BaseOption<number, { provider: string; state: string | number }>[]
+    Global.BaseOption<
+      number,
+      { provider: string; state: string | number; owner_principal_id?: number }
+    >[]
   >([]);
   const [workersList, setWorkersList] = useState<
     Global.BaseOption<
@@ -165,6 +168,11 @@ export const useGenerateWorkerOptions = () => {
         label: cluster.name,
         value: cluster.id,
         parent: true,
+        // Carried so the download form can scope the worker picker to a
+        // chosen org (admin "All" view). A model file's owner is derived
+        // from the target worker's cluster, so filtering by the cluster's
+        // owner keeps them aligned.
+        owner_principal_id: cluster.owner_principal_id,
         children: workerList
           .filter(
             (worker) =>
@@ -219,6 +227,7 @@ export const useGenerateWorkerOptions = () => {
       provider: item.provider as string,
       state: item.state,
       is_default: item.is_default,
+      owner_principal_id: item.owner_principal_id,
       workers: item.workers,
       ready_workers: item.ready_workers,
       gpus: item.gpus
@@ -245,7 +254,12 @@ export default function useFormInitialValues() {
   const [clusterList, setClusterList] = useState<
     Global.BaseOption<
       number,
-      { provider: string; state: string; is_default: boolean }
+      {
+        provider: string;
+        state: string;
+        is_default: boolean;
+        owner_principal_id?: number;
+      }
     >[]
   >([]);
 
@@ -262,6 +276,11 @@ export default function useFormInitialValues() {
         provider: item.provider as string,
         state: item.state,
         is_default: item.is_default,
+        // Carried so the deploy form can scope the cluster dropdown to a
+        // chosen org (admin "All" view). The created deployment's owner is
+        // derived from the picked cluster, so filtering to owned clusters
+        // keeps owner and cluster aligned.
+        owner_principal_id: item.owner_principal_id,
         workers: item.workers,
         ready_workers: item.ready_workers,
         gpus: item.gpus