diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07937512400..a16632afbfa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -78,6 +78,7 @@ Docs: https://docs.openclaw.ai
 - Gateway/watch mode: restart on bundled-plugin package and manifest metadata changes, rebuild `dist` for extension source and `tsdown.config.ts` changes, and still ignore extension docs. (#47571) thanks @gumadeiras.
 - Gateway/watch mode: recreate bundled plugin runtime metadata after clean or stale `dist` states, so `pnpm gateway:watch` no longer fails on missing `dist/extensions/*/openclaw.plugin.json` manifests after a rebuild. Thanks @gumadeiras.
 - Plugins/context engines: enforce owner-aware context-engine registration on both loader and public SDK paths so plugins cannot spoof privileged ownership, claim the core `legacy` engine id, or overwrite an existing engine id through direct SDK imports. (#47595) Thanks @vincentkoc.
+- Control UI/model picker: normalize cached bare `/model` overrides to provider-qualified selector keys so the dropdown stays aligned with the real catalog entry across model changes and refreshes. (#47581) Thanks @chrishham.
 
 ## 2026.3.13
 
diff --git a/ui/src/ui/app-chat.test.ts b/ui/src/ui/app-chat.test.ts
index 9a3e86d375d..3b341c3a042 100644
--- a/ui/src/ui/app-chat.test.ts
+++ b/ui/src/ui/app-chat.test.ts
@@ -93,7 +93,7 @@ describe("handleSendChat", () => {
           ts: 0,
           path: "",
           count: 0,
-          defaults: { model: "gpt-5", contextTokens: null },
+          defaults: { modelProvider: "openai", model: "gpt-5", contextTokens: null },
           sessions: [],
         };
       }
diff --git a/ui/src/ui/app-render.helpers.ts b/ui/src/ui/app-render.helpers.ts
index 12e239cb50d..02d7c7abe28 100644
--- a/ui/src/ui/app-render.helpers.ts
+++ b/ui/src/ui/app-render.helpers.ts
@@ -518,11 +518,44 @@ function resolveActiveSessionRow(state: AppViewState) {
   return state.sessionsResult?.sessions?.find((row) => row.key === state.sessionKey);
 }
 
+function buildQualifiedModelValue(model: string, provider?: string | null): string {
+  const trimmedModel = model.trim();
+  if (!trimmedModel) {
+    return "";
+  }
+  const trimmedProvider = provider?.trim();
+  return trimmedProvider ? `${trimmedProvider}/${trimmedModel}` : trimmedModel;
+}
+
+function normalizeModelOptionValue(rawValue: string, catalog: ModelCatalogEntry[]): string {
+  const trimmed = rawValue.trim();
+  if (!trimmed || trimmed.includes("/")) {
+    return trimmed;
+  }
+
+  let matchedValue = "";
+  for (const entry of catalog) {
+    if (entry.id.trim().toLowerCase() !== trimmed.toLowerCase()) {
+      continue;
+    }
+    const candidate = buildQualifiedModelValue(entry.id, entry.provider);
+    if (!matchedValue) {
+      matchedValue = candidate;
+      continue;
+    }
+    if (matchedValue.toLowerCase() !== candidate.toLowerCase()) {
+      return trimmed;
+    }
+  }
+
+  return matchedValue || trimmed;
+}
+
 function resolveModelOverrideValue(state: AppViewState): string {
   // Prefer the local cache — it reflects in-flight patches before sessionsResult refreshes.
   const cached = state.chatModelOverrides[state.sessionKey];
   if (typeof cached === "string") {
-    return cached.trim();
+    return normalizeModelOptionValue(cached, state.chatModelCatalog ?? []);
   }
   // cached === null means explicitly cleared to default.
   if (cached === null) {
@@ -532,9 +565,7 @@ function resolveModelOverrideValue(state: AppViewState): string {
   // Include provider prefix so the value matches option keys (provider/model).
   const activeRow = resolveActiveSessionRow(state);
   if (activeRow && typeof activeRow.model === "string" && activeRow.model.trim()) {
-    const provider = activeRow.modelProvider?.trim();
-    const model = activeRow.model.trim();
-    return provider ? `${provider}/${model}` : model;
+    return buildQualifiedModelValue(activeRow.model, activeRow.modelProvider);
   }
   return "";
 }
@@ -545,8 +576,7 @@ function resolveDefaultModelValue(state: AppViewState): string {
   if (typeof model !== "string" || !model.trim()) {
     return "";
   }
-  const provider = defaults?.modelProvider?.trim();
-  return provider ? `${provider}/${model.trim()}` : model.trim();
+  return buildQualifiedModelValue(model, defaults?.modelProvider);
 }
 
 function buildChatModelOptions(
@@ -571,7 +601,7 @@ function buildChatModelOptions(
 
   for (const entry of catalog) {
     const provider = entry.provider?.trim();
-    const value = provider ? `${provider}/${entry.id}` : entry.id;
+    const value = buildQualifiedModelValue(entry.id, provider);
     addOption(value, provider ? `${entry.id} · ${provider}` : entry.id);
   }
 
diff --git a/ui/src/ui/chat/slash-command-executor.node.test.ts b/ui/src/ui/chat/slash-command-executor.node.test.ts
index d08c62b97d9..13e720173dc 100644
--- a/ui/src/ui/chat/slash-command-executor.node.test.ts
+++ b/ui/src/ui/chat/slash-command-executor.node.test.ts
@@ -235,7 +235,7 @@ describe("executeSlashCommand directives", () => {
     const request = vi.fn(async (method: string, _payload?: unknown) => {
       if (method === "sessions.list") {
         return {
-          defaults: { model: "default-model" },
+          defaults: { modelProvider: "openai", model: "default-model" },
           sessions: [
             row("agent:main:main", {
               model: "gpt-4.1-mini",
diff --git a/ui/src/ui/views/chat.browser.test.ts b/ui/src/ui/views/chat.browser.test.ts
index fa7947a328a..c17525bb60b 100644
--- a/ui/src/ui/views/chat.browser.test.ts
+++ b/ui/src/ui/views/chat.browser.test.ts
@@ -31,7 +31,7 @@ function createProps(overrides: Partial<ChatProps> = {}): ChatProps {
       ts: 0,
       path: "",
       count: 1,
-      defaults: { model: "gpt-5", contextTokens: null },
+      defaults: { modelProvider: "openai", model: "gpt-5", contextTokens: null },
       sessions: [
         {
           key: "main",
diff --git a/ui/src/ui/views/chat.test.ts b/ui/src/ui/views/chat.test.ts
index 860727c1927..f8fe7b9f08f 100644
--- a/ui/src/ui/views/chat.test.ts
+++ b/ui/src/ui/views/chat.test.ts
@@ -14,7 +14,7 @@ function createSessions(): SessionsListResult {
     ts: 0,
     path: "",
     count: 0,
-    defaults: { model: null, contextTokens: null },
+    defaults: { modelProvider: null, model: null, contextTokens: null },
     sessions: [],
   };
 }
@@ -27,6 +27,7 @@ function createChatHeaderState(
   } = {},
 ): { state: AppViewState; request: ReturnType<typeof vi.fn> } {
   let currentModel = overrides.model ?? null;
+  let currentModelProvider = currentModel ? "openai" : undefined;
   const omitSessionFromList = overrides.omitSessionFromList ?? false;
   const catalog = overrides.models ?? [
     { id: "gpt-5", name: "GPT-5", provider: "openai" },
@@ -34,7 +35,26 @@ function createChatHeaderState(
   ];
   const request = vi.fn(async (method: string, params: Record<string, unknown>) => {
     if (method === "sessions.patch") {
-      currentModel = (params.model as string | null | undefined) ?? null;
+      const nextModel = (params.model as string | null | undefined) ?? null;
+      if (!nextModel) {
+        currentModel = null;
+        currentModelProvider = undefined;
+      } else {
+        const normalized = nextModel.trim();
+        const slashIndex = normalized.indexOf("/");
+        if (slashIndex > 0) {
+          currentModelProvider = normalized.slice(0, slashIndex);
+          currentModel = normalized.slice(slashIndex + 1);
+        } else {
+          currentModel = normalized;
+          const matchingProviders = catalog
+            .filter((entry) => entry.id === normalized)
+            .map((entry) => entry.provider)
+            .filter(Boolean);
+          currentModelProvider =
+            matchingProviders.length === 1 ? matchingProviders[0] : currentModelProvider;
+        }
+      }
       return { ok: true, key: "main" };
     }
     if (method === "chat.history") {
@@ -45,10 +65,18 @@ function createChatHeaderState(
         ts: 0,
         path: "",
         count: omitSessionFromList ? 0 : 1,
-        defaults: { model: "gpt-5", contextTokens: null },
+        defaults: { modelProvider: "openai", model: "gpt-5", contextTokens: null },
         sessions: omitSessionFromList
           ? []
-          : [{ key: "main", kind: "direct", updatedAt: null, model: currentModel }],
+          : [
+              {
+                key: "main",
+                kind: "direct",
+                updatedAt: null,
+                modelProvider: currentModelProvider,
+                model: currentModel,
+              },
+            ],
       };
     }
     if (method === "models.list") {
@@ -64,10 +92,18 @@ function createChatHeaderState(
       ts: 0,
       path: "",
       count: omitSessionFromList ? 0 : 1,
-      defaults: { model: "gpt-5", contextTokens: null },
+      defaults: { modelProvider: "openai", model: "gpt-5", contextTokens: null },
       sessions: omitSessionFromList
         ? []
-        : [{ key: "main", kind: "direct", updatedAt: null, model: currentModel }],
+        : [
+            {
+              key: "main",
+              kind: "direct",
+              updatedAt: null,
+              modelProvider: currentModelProvider,
+              model: currentModel,
+            },
+          ],
     },
     chatModelOverrides: {},
     chatModelCatalog: catalog,
@@ -565,13 +601,13 @@ describe("chat view", () => {
     expect(modelSelect).not.toBeNull();
     expect(modelSelect?.value).toBe("");
 
-    modelSelect!.value = "gpt-5-mini";
+    modelSelect!.value = "openai/gpt-5-mini";
     modelSelect!.dispatchEvent(new Event("change", { bubbles: true }));
     await flushTasks();
 
     expect(request).toHaveBeenCalledWith("sessions.patch", {
       key: "main",
-      model: "gpt-5-mini",
+      model: "openai/gpt-5-mini",
     });
     expect(request).not.toHaveBeenCalledWith("chat.history", expect.anything());
     expect(state.sessionsResult?.sessions[0]?.model).toBe("gpt-5-mini");
@@ -593,7 +629,7 @@ describe("chat view", () => {
       'select[data-chat-model-select="true"]',
     );
     expect(modelSelect).not.toBeNull();
-    expect(modelSelect?.value).toBe("gpt-5-mini");
+    expect(modelSelect?.value).toBe("openai/gpt-5-mini");
 
     modelSelect!.value = "";
     modelSelect!.dispatchEvent(new Event("change", { bubbles: true }));
@@ -637,7 +673,7 @@ describe("chat view", () => {
     );
     expect(modelSelect).not.toBeNull();
 
-    modelSelect!.value = "gpt-5-mini";
+    modelSelect!.value = "openai/gpt-5-mini";
     modelSelect!.dispatchEvent(new Event("change", { bubbles: true }));
     await flushTasks();
     render(renderChatSessionSelect(state), container);
@@ -645,10 +681,30 @@ describe("chat view", () => {
     const rerendered = container.querySelector<HTMLSelectElement>(
       'select[data-chat-model-select="true"]',
     );
-    expect(rerendered?.value).toBe("gpt-5-mini");
+    expect(rerendered?.value).toBe("openai/gpt-5-mini");
     vi.unstubAllGlobals();
   });
 
+  it("normalizes cached bare /model overrides to the matching catalog option", () => {
+    const { state } = createChatHeaderState();
+    state.chatModelOverrides = { main: "gpt-5-mini" };
+
+    const container = document.createElement("div");
+    render(renderChatSessionSelect(state), container);
+
+    const modelSelect = container.querySelector<HTMLSelectElement>(
+      'select[data-chat-model-select="true"]',
+    );
+    expect(modelSelect).not.toBeNull();
+    expect(modelSelect?.value).toBe("openai/gpt-5-mini");
+
+    const optionValues = Array.from(modelSelect?.querySelectorAll("option") ?? []).map(
+      (option) => option.value,
+    );
+    expect(optionValues).toContain("openai/gpt-5-mini");
+    expect(optionValues).not.toContain("gpt-5-mini");
+  });
+
   it("prefers the session label over displayName in the grouped chat session selector", () => {
     const { state } = createChatHeaderState({ omitSessionFromList: true });
     state.sessionKey = "agent:main:subagent:4f2146de-887b-4176-9abe-91140082959b";
@@ -657,7 +713,7 @@ describe("chat view", () => {
       ts: 0,
       path: "",
       count: 1,
-      defaults: { model: "gpt-5", contextTokens: null },
+      defaults: { modelProvider: "openai", model: "gpt-5", contextTokens: null },
       sessions: [
         {
           key: state.sessionKey,
@@ -707,7 +763,7 @@ describe("chat view", () => {
       ts: 0,
       path: "",
       count: 1,
-      defaults: { model: "gpt-5", contextTokens: null },
+      defaults: { modelProvider: "openai", model: "gpt-5", contextTokens: null },
       sessions: [
         {
           key: state.sessionKey,
@@ -736,7 +792,7 @@ describe("chat view", () => {
       ts: 0,
       path: "",
       count: 2,
-      defaults: { model: "gpt-5", contextTokens: null },
+      defaults: { modelProvider: "openai", model: "gpt-5", contextTokens: null },
       sessions: [
         {
           key: "agent:main:subagent:4f2146de-887b-4176-9abe-91140082959b",
diff --git a/ui/src/ui/views/sessions.test.ts b/ui/src/ui/views/sessions.test.ts
index fe650fef8fb..342af136a75 100644
--- a/ui/src/ui/views/sessions.test.ts
+++ b/ui/src/ui/views/sessions.test.ts
@@ -8,7 +8,7 @@ function buildResult(session: SessionsListResult["sessions"][number]): SessionsL
     ts: Date.now(),
     path: "(multiple)",
     count: 1,
-    defaults: { model: null, contextTokens: null },
+    defaults: { modelProvider: null, model: null, contextTokens: null },
     sessions: [session],
   };
 }