diff --git a/src/commands/model-picker.test.ts b/src/commands/model-picker.test.ts
index f4bbd52b9c7..704fc5d793a 100644
--- a/src/commands/model-picker.test.ts
+++ b/src/commands/model-picker.test.ts
@@ -34,6 +34,21 @@ vi.mock("../agents/model-auth.js", () => ({
   hasUsableCustomProviderApiKey,
 }));
 
+const resolveOwningPluginIdsForProvider = vi.hoisted(() =>
+  vi.fn(({ provider }: { provider: string }) => {
+    if (provider === "byteplus" || provider === "byteplus-plan") {
+      return ["byteplus"];
+    }
+    if (provider === "volcengine" || provider === "volcengine-plan") {
+      return ["volcengine"];
+    }
+    return undefined;
+  }),
+);
+vi.mock("../plugins/providers.js", () => ({
+  resolveOwningPluginIdsForProvider,
+}));
+
 const providerModelPickerContributionRuntime = vi.hoisted(() => ({
   enabled: false,
   resolve: vi.fn(() => []),
@@ -85,6 +100,15 @@ function createSelectAllMultiselect() {
 beforeEach(() => {
   vi.clearAllMocks();
   providerModelPickerContributionRuntime.enabled = false;
+  resolveOwningPluginIdsForProvider.mockImplementation(({ provider }: { provider: string }) => {
+    if (provider === "byteplus" || provider === "byteplus-plan") {
+      return ["byteplus"];
+    }
+    if (provider === "volcengine" || provider === "volcengine-plan") {
+      return ["volcengine"];
+    }
+    return undefined;
+  });
 });
 
 describe("promptDefaultModel", () => {
@@ -167,6 +191,12 @@ describe("promptDefaultModel", () => {
     expect(optionValues[1]).toBe("byteplus-plan/ark-code-latest");
     expect(select.mock.calls[0]?.[0]?.initialValue).toBe("byteplus-plan/ark-code-latest");
     expect(result.model).toBe("byteplus-plan/ark-code-latest");
+    expect(resolveOwningPluginIdsForProvider).toHaveBeenCalledWith(
+      expect.objectContaining({ provider: "byteplus" }),
+    );
+    expect(resolveOwningPluginIdsForProvider).toHaveBeenCalledWith(
+      expect.objectContaining({ provider: "byteplus-plan" }),
+    );
   });
 
   it("supports configuring vLLM during setup", async () => {
diff --git a/src/commands/openai-model-default.test.ts b/src/commands/openai-model-default.test.ts
index 612bf52f81e..970efd954ef 100644
--- a/src/commands/openai-model-default.test.ts
+++ b/src/commands/openai-model-default.test.ts
@@ -1,9 +1,9 @@
 import { describe, expect, it, vi } from "vitest";
-import type { OpenClawConfig } from "../config/config.js";
 import {
   applyOpencodeZenModelDefault,
   OPENCODE_ZEN_DEFAULT_MODEL,
-} from "../plugins/provider-model-defaults.js";
+} from "../../extensions/opencode/api.js";
+import type { OpenClawConfig } from "../config/config.js";
 import type { WizardPrompter } from "../wizard/prompts.js";
 import { applyDefaultModelChoice } from "./auth-choice.default-model.js";
 
diff --git a/src/flows/model-picker.ts b/src/flows/model-picker.ts
index 03c55d93249..cd0ab1f85d3 100644
--- a/src/flows/model-picker.ts
+++ b/src/flows/model-picker.ts
@@ -13,6 +13,7 @@ import { formatTokenK } from "../commands/models/shared.js";
 import type { OpenClawConfig } from "../config/config.js";
 import { resolveAgentModelPrimaryValue } from "../config/model-input.js";
 import { applyPrimaryModel } from "../plugins/provider-model-primary.js";
+import { resolveOwningPluginIdsForProvider } from "../plugins/providers.js";
 import type { ProviderPlugin } from "../plugins/types.js";
 import type { RuntimeEnv } from "../runtime.js";
 import { createLazyRuntimeSurface } from "../shared/lazy-runtime.js";
@@ -172,14 +173,43 @@ function addModelSelectOption(params: {
   params.seen.add(key);
 }
 
-function matchesPreferredProvider(entryProvider: string, preferredProvider: string): boolean {
-  if (preferredProvider === "volcengine") {
-    return entryProvider === "volcengine" || entryProvider === "volcengine-plan";
-  }
-  if (preferredProvider === "byteplus") {
-    return entryProvider === "byteplus" || entryProvider === "byteplus-plan";
-  }
-  return entryProvider === preferredProvider;
+function createPreferredProviderMatcher(params: {
+  preferredProvider: string;
+  cfg: OpenClawConfig;
+  workspaceDir?: string;
+  env?: NodeJS.ProcessEnv;
+}): (entryProvider: string) => boolean {
+  const normalizedPreferredProvider = normalizeProviderId(params.preferredProvider);
+  const preferredOwnerPluginIds = resolveOwningPluginIdsForProvider({
+    provider: normalizedPreferredProvider,
+    config: params.cfg,
+    workspaceDir: params.workspaceDir,
+    env: params.env,
+  });
+  const preferredOwnerPluginIdSet = preferredOwnerPluginIds
+    ? new Set(preferredOwnerPluginIds)
+    : undefined;
+  const entryProviderCache = new Map<string, boolean>();
+  return (entryProvider: string) => {
+    const normalizedEntryProvider = normalizeProviderId(entryProvider);
+    if (normalizedEntryProvider === normalizedPreferredProvider) {
+      return true;
+    }
+    const cached = entryProviderCache.get(normalizedEntryProvider);
+    if (cached !== undefined) {
+      return cached;
+    }
+    const value =
+      !!preferredOwnerPluginIdSet &&
+      !!resolveOwningPluginIdsForProvider({
+        provider: normalizedEntryProvider,
+        config: params.cfg,
+        workspaceDir: params.workspaceDir,
+        env: params.env,
+      })?.some((pluginId) => preferredOwnerPluginIdSet.has(pluginId));
+    entryProviderCache.set(normalizedEntryProvider, value);
+    return value;
+  };
 }
 
 async function promptManualModel(params: {
@@ -226,6 +256,9 @@ async function maybeFilterModelsByProvider(params: {
   }>;
   preferredProvider?: string;
   prompter: WizardPrompter;
+  cfg: OpenClawConfig;
+  workspaceDir?: string;
+  env?: NodeJS.ProcessEnv;
 }): Promise<typeof params.models> {
   const providerIds = Array.from(new Set(params.models.map((entry) => entry.provider))).toSorted(
     (a, b) => a.localeCompare(b),
@@ -236,6 +269,14 @@ async function maybeFilterModelsByProvider(params: {
     providerIds.length > 1 &&
     params.models.length > PROVIDER_FILTER_THRESHOLD;
   let next = params.models;
+  const matchesPreferredProvider = params.preferredProvider
+    ? createPreferredProviderMatcher({
+        preferredProvider: params.preferredProvider,
+        cfg: params.cfg,
+        workspaceDir: params.workspaceDir,
+        env: params.env,
+      })
+    : undefined;
   if (shouldPromptProvider) {
     const selection = await params.prompter.select({
       message: "Filter models by provider",
@@ -246,9 +287,7 @@ async function maybeFilterModelsByProvider(params: {
     }
   }
   if (hasPreferredProvider && params.preferredProvider) {
-    const filtered = next.filter((entry) =>
-      matchesPreferredProvider(entry.provider, params.preferredProvider!),
-    );
+    const filtered = next.filter((entry) => matchesPreferredProvider?.(entry.provider));
     if (filtered.length > 0) {
       next = filtered;
     }
@@ -418,9 +457,20 @@ export async function promptDefaultModel(
     models,
     preferredProvider,
     prompter: params.prompter,
+    cfg,
+    workspaceDir: params.workspaceDir,
+    env: params.env,
   });
+  const matchesPreferredProvider = preferredProvider
+    ? createPreferredProviderMatcher({
+        preferredProvider,
+        cfg,
+        workspaceDir: params.workspaceDir,
+        env: params.env,
+      })
+    : undefined;
   const hasPreferredProvider = preferredProvider
-    ? filteredModels.some((entry) => matchesPreferredProvider(entry.provider, preferredProvider))
+    ? filteredModels.some((entry) => matchesPreferredProvider?.(entry.provider))
     : false;
   const hasAuth = createProviderAuthChecker({ cfg, agentDir: params.agentDir });
 
@@ -465,7 +515,7 @@ export async function promptDefaultModel(
     allowKeep &&
     hasPreferredProvider &&
     preferredProvider &&
-    !matchesPreferredProvider(resolved.provider, preferredProvider)
+    !matchesPreferredProvider?.(resolved.provider)
   ) {
     const firstModel = filteredModels[0];
     if (firstModel) {
@@ -570,6 +620,12 @@ export async function promptModelAllowlist(params: {
     defaultProvider: DEFAULT_PROVIDER,
   });
   const hasAuth = createProviderAuthChecker({ cfg, agentDir: params.agentDir });
+  const matchesPreferredProvider = preferredProvider
+    ? createPreferredProviderMatcher({
+        preferredProvider,
+        cfg,
+      })
+    : undefined;
 
   const options: WizardSelectOption[] = [];
   const seen = new Set<string>();
@@ -577,11 +633,8 @@ export async function promptModelAllowlist(params: {
     ? catalog.filter((entry) => allowedKeySet.has(modelKey(entry.provider, entry.id)))
     : catalog;
   const filteredCatalog =
-    preferredProvider &&
-    allowedCatalog.some((entry) => matchesPreferredProvider(entry.provider, preferredProvider))
-      ? allowedCatalog.filter((entry) =>
-          matchesPreferredProvider(entry.provider, preferredProvider),
-        )
+    preferredProvider && allowedCatalog.some((entry) => matchesPreferredProvider?.(entry.provider))
+      ? allowedCatalog.filter((entry) => matchesPreferredProvider?.(entry.provider))
       : allowedCatalog;
 
   for (const entry of filteredCatalog) {
diff --git a/src/plugins/provider-model-defaults.ts b/src/plugins/provider-model-defaults.ts
index 9ce577fce10..d4b8464ae78 100644
--- a/src/plugins/provider-model-defaults.ts
+++ b/src/plugins/provider-model-defaults.ts
@@ -1,6 +1,10 @@
 import type { OpenClawConfig } from "../config/config.js";
 import { ensureModelAllowlistEntry } from "./provider-model-allowlist.js";
 import { applyAgentDefaultPrimaryModel } from "./provider-model-primary.js";
+export {
+  applyOpencodeZenModelDefault,
+  OPENCODE_ZEN_DEFAULT_MODEL,
+} from "../../extensions/opencode/api.js";
 
 export const OPENAI_DEFAULT_MODEL = "openai/gpt-5.4";
 export const OPENAI_CODEX_DEFAULT_MODEL = "openai-codex/gpt-5.4";
@@ -12,12 +16,6 @@ export const OPENAI_DEFAULT_EMBEDDING_MODEL = "text-embedding-3-small";
 export const GOOGLE_GEMINI_DEFAULT_MODEL = "google/gemini-3.1-pro-preview";
 export const OLLAMA_DEFAULT_BASE_URL = "http://127.0.0.1:11434";
 export const OPENCODE_GO_DEFAULT_MODEL_REF = "opencode-go/kimi-k2.5";
-export const OPENCODE_ZEN_DEFAULT_MODEL = "opencode/claude-opus-4-6";
-
-const LEGACY_OPENCODE_ZEN_DEFAULT_MODELS = new Set([
-  "opencode/claude-opus-4-5",
-  "opencode-zen/claude-opus-4-5",
-]);
 
 export function applyGoogleGeminiModelDefault(cfg: OpenClawConfig): {
   next: OpenClawConfig;
@@ -75,14 +73,3 @@ export function applyOpencodeGoModelDefault(cfg: OpenClawConfig): {
 } {
   return applyAgentDefaultPrimaryModel({ cfg, model: OPENCODE_GO_DEFAULT_MODEL_REF });
 }
-
-export function applyOpencodeZenModelDefault(cfg: OpenClawConfig): {
-  next: OpenClawConfig;
-  changed: boolean;
-} {
-  return applyAgentDefaultPrimaryModel({
-    cfg,
-    model: OPENCODE_ZEN_DEFAULT_MODEL,
-    legacyModels: LEGACY_OPENCODE_ZEN_DEFAULT_MODELS,
-  });
-}