diff --git a/apps/web/tests/expected/deepseek-messages-settings/cards.expected.md b/apps/web/tests/expected/deepseek-messages-settings/cards.expected.md
index 97ec53d80b..abd17a0782 100644
--- a/apps/web/tests/expected/deepseek-messages-settings/cards.expected.md
+++ b/apps/web/tests/expected/deepseek-messages-settings/cards.expected.md
@@ -30,7 +30,7 @@
             - text: deepseek-flash
           - textbox "显示名称 1":
             - /placeholder: 显示名称
-            - text: DeepSeek-V4.1-Flash-1017
+            - text: DeepSeek-V4.1-Flash
           - button "模型选项 1"
           - button "删除模型 1"
           - textbox "模型 ID 2":
diff --git a/apps/web/tests/expected/onboarding-deepseek-config/default-models.expected.md b/apps/web/tests/expected/onboarding-deepseek-config/default-models.expected.md
index c9bf074eab..cff2fd1b37 100644
--- a/apps/web/tests/expected/onboarding-deepseek-config/default-models.expected.md
+++ b/apps/web/tests/expected/onboarding-deepseek-config/default-models.expected.md
@@ -30,7 +30,7 @@
             - text: deepseek-flash
           - textbox "显示名称 1":
             - /placeholder: 显示名称
-            - text: DeepSeek-V4.1-Flash-1017
+            - text: DeepSeek-V4.1-Flash
           - button "模型选项 1" [expanded]
           - button "删除模型 1"
           - text: 上下文窗口
diff --git a/apps/web/tests/onboarding-deepseek-config.e2e.ts b/apps/web/tests/onboarding-deepseek-config.e2e.ts
index aa580b5f85..f6978205c1 100644
--- a/apps/web/tests/onboarding-deepseek-config.e2e.ts
+++ b/apps/web/tests/onboarding-deepseek-config.e2e.ts
@@ -213,7 +213,7 @@ describe.skipIf(MODE === 'record')('web e2e: first-run DeepSeek credential setup
     await deepSeek.locator('xpath=ancestor::li').getByRole('button', { name: '编辑' }).click()
     await settings.getByText('自定义设置').click()
     expect(await settings.getByLabel('模型 ID 1').inputValue()).toBe('deepseek-flash')
-    expect(await settings.getByLabel('显示名称 1').inputValue()).toBe('DeepSeek-V4.1-Flash-1017')
+    expect(await settings.getByLabel('显示名称 1').inputValue()).toBe('DeepSeek-V4.1-Flash')
     expect(await settings.getByLabel('模型 ID 2').inputValue()).toBe('deepseek-v4-pro')
     expect(await settings.getByRole('button', { name: /删除模型/ }).count()).toBe(2)
     await settings.getByRole('button', { name: '模型选项 1' }).click()
diff --git a/packages/bundle/web-app/README.i18n.yaml b/packages/bundle/web-app/README.i18n.yaml
index c8ff54a601..1d8e07a01e 100644
--- a/packages/bundle/web-app/README.i18n.yaml
+++ b/packages/bundle/web-app/README.i18n.yaml
@@ -18,8 +18,8 @@
   en: 3bd37b85139d2fa7
   zh: ba86c807eb83866e
 /deepseek-ai-dsh-web-app/use-this-package/starting-the-web-gui:
-  en: a1cf03cc8ad908c5
-  zh: c06b89454172a47d
+  en: e3cac911f080d8ef
+  zh: 60749e9f5c39c1bc
 /deepseek-ai-dsh-web-app/use-this-package/configuration:
   en: b1787804544f2587
   zh: ce09d2c248ffd999
diff --git a/packages/bundle/web-app/README.md b/packages/bundle/web-app/README.md
index 23c4936ffc..2305d402cd 100644
--- a/packages/bundle/web-app/README.md
+++ b/packages/bundle/web-app/README.md
@@ -40,7 +40,7 @@ dsh --profile web --no-open --port 8080
 
 After startup you see a `dsh web:` line whose root URL carries a fresh process token. Unless `--no-open` or an SSH session suppresses it, the default browser opens that URL, receives a signed cookie, and redirects to the same directory without the token. You know it worked when the page loads and you can chat with the agent. Two failures to expect: if the frontend is not built, startup stops with a build hint (`pnpm run build` in a checkout); if the browser cannot be opened, a credential-free diagnostic prints to stderr while the server keeps running — open the printed startup URL yourself.
 
-**Settings → Models** displays **DeepSeek**, using `DEEPSEEK_API_KEY`. The default is `deepseek-official` / `deepseek-flash` (DeepSeek-V4.1-Flash-1017). The [DeepSeek plugin](../../llm/llm-deepseek/README.md#endpoint-and-wire-format) uses the Messages API.
+**Settings → Models** displays **DeepSeek**, using `DEEPSEEK_API_KEY`. The default is `deepseek-official` / `deepseek-flash` (DeepSeek-V4.1-Flash). The [DeepSeek plugin](../../llm/llm-deepseek/README.md#endpoint-and-wire-format) uses the Messages API.
 
 Saved model selections override the composition default. The settings card accepts a Messages-compatible API address and a credential reference.
 
diff --git a/packages/bundle/web-app/README.zh.md b/packages/bundle/web-app/README.zh.md
index 3598103591..8d08ede8af 100644
--- a/packages/bundle/web-app/README.zh.md
+++ b/packages/bundle/web-app/README.zh.md
@@ -40,7 +40,7 @@ dsh --profile web --no-open --port 8080
 
 启动后你会看到 `dsh web:` 行，其根 URL 携带新的进程 token。除非 `--no-open` 或 SSH 会话抑制，否则默认浏览器会打开该 URL、取得签名 cookie，再重定向到不含认证参数的同一目录。页面加载且你可以与 agent 对话，就说明成功了。两种可预期的失败：前端未构建时，启动会以构建提示停止（checkout 中运行 `pnpm run build`）；浏览器无法打开时，stderr 会打印不含凭据的诊断，但服务器会继续运行——请自行打开已打印的启动 URL。
 
-**设置 → 模型**显示 **DeepSeek**，使用 `DEEPSEEK_API_KEY`。默认模型为 `deepseek-official` / `deepseek-flash`（DeepSeek-V4.1-Flash-1017）。[DeepSeek 插件](../../llm/llm-deepseek/README.zh.md#endpoint-and-wire-format)使用 Messages API。
+**设置 → 模型**显示 **DeepSeek**，使用 `DEEPSEEK_API_KEY`。默认模型为 `deepseek-official` / `deepseek-flash`（DeepSeek-V4.1-Flash）。[DeepSeek 插件](../../llm/llm-deepseek/README.zh.md#endpoint-and-wire-format)使用 Messages API。
 
 已保存的模型选择覆盖组合默认值。设置卡接受兼容 Messages 的 API 地址与凭据引用。
 
diff --git a/packages/llm/llm-deepseek-account/tests/resolve-catalog.spec.ts b/packages/llm/llm-deepseek-account/tests/resolve-catalog.spec.ts
index e1c7ebc6a8..4306193146 100644
--- a/packages/llm/llm-deepseek-account/tests/resolve-catalog.spec.ts
+++ b/packages/llm/llm-deepseek-account/tests/resolve-catalog.spec.ts
@@ -28,7 +28,7 @@ describe('without a listing', () => {
   it('offers the bundled catalog', () => {
     const catalog = resolve(undefined)
     expect(catalog.offered.map(model => [model.id, model.name, model.contextWindow])).toEqual([
-      ['deepseek-flash', 'DeepSeek-V4.1-Flash-1017', 1_000_000], ['deepseek-v4-pro', 'DeepSeek-V4-Pro', 1_000_000],
+      ['deepseek-flash', 'DeepSeek-V4.1-Flash', 1_000_000], ['deepseek-v4-pro', 'DeepSeek-V4-Pro', 1_000_000],
     ])
     expect(catalog.resolution).toEqual(catalog.offered)
     expect(catalog.refusals.size).toBe(0)
diff --git a/packages/llm/llm-deepseek/src/models.ts b/packages/llm/llm-deepseek/src/models.ts
index 1b2d8ab241..15d0c78253 100644
--- a/packages/llm/llm-deepseek/src/models.ts
+++ b/packages/llm/llm-deepseek/src/models.ts
@@ -6,7 +6,7 @@ import type { DeepSeekCatalogModel } from './types.ts'
 export const DEFAULT_MODELS: DeepSeekCatalogModel[] = [
   {
     id: 'deepseek-flash',
-    name: 'DeepSeek-V4.1-Flash-1017',
+    name: 'DeepSeek-V4.1-Flash',
     contextWindow: DEFAULT_CONTEXT_WINDOW,
     inputModalities: ['text', 'image'],
     systemPromptUpdate: 'in-history',
diff --git a/packages/llm/llm-deepseek/tests/adapter.spec.ts b/packages/llm/llm-deepseek/tests/adapter.spec.ts
index bd1905aaa0..c6a1948ec0 100644
--- a/packages/llm/llm-deepseek/tests/adapter.spec.ts
+++ b/packages/llm/llm-deepseek/tests/adapter.spec.ts
@@ -141,7 +141,7 @@ describe('direct Messages HTTP', () => {
     expect(llm.providerInfo('deepseek-official')).toEqual({ id: 'deepseek-official', name: 'DeepSeek' })
     expect(await llm.listModels('deepseek-official')).toEqual([])
     expect(await llm.resolveModel('deepseek-official', 'deepseek-flash')).toMatchObject({
-      name: 'DeepSeek-V4.1-Flash-1017', inputModalities: ['text', 'image'], systemPromptUpdate: 'in-history',
+      name: 'DeepSeek-V4.1-Flash', inputModalities: ['text', 'image'], systemPromptUpdate: 'in-history',
     })
     expect(await llm.resolveModel('deepseek-official', MODEL)).toMatchObject({ id: MODEL })
     expect(llm.imageRequestPricing('deepseek-official', MODEL)).toBeDefined()
diff --git a/packages/llm/llm-deepseek/tests/runtime.spec.ts b/packages/llm/llm-deepseek/tests/runtime.spec.ts
index 96c296e637..54cec3fe36 100644
--- a/packages/llm/llm-deepseek/tests/runtime.spec.ts
+++ b/packages/llm/llm-deepseek/tests/runtime.spec.ts
@@ -1794,7 +1794,7 @@ describe('plugin registration and config', () => {
     await ctx.plugin(LlmDeepSeek, { baseURL: 'http://127.0.0.1:1' })
     expect(ctx.llm.listProviders()).toEqual([{ id: 'deepseek-official', name: 'DeepSeek' }])
     await expect(ctx.llm.listModels('deepseek-official')).resolves.toEqual([
-      { provider: 'deepseek-official', id: 'deepseek-flash', name: 'DeepSeek-V4.1-Flash-1017', inputModalities: ['text', 'image'] },
+      { provider: 'deepseek-official', id: 'deepseek-flash', name: 'DeepSeek-V4.1-Flash', inputModalities: ['text', 'image'] },
       {
         provider: 'deepseek-official',
         id: 'deepseek-v4-pro',
@@ -1807,7 +1807,7 @@ describe('plugin registration and config', () => {
       .resolves.toMatchObject({
         provider: 'deepseek-official',
         id: 'deepseek-flash',
-        name: 'DeepSeek-V4.1-Flash-1017',
+        name: 'DeepSeek-V4.1-Flash',
         inputModalities: ['text', 'image'],
         systemPromptUpdate: 'in-history',
         context: { contextWindow: 1_000_000 },
@@ -1922,7 +1922,7 @@ describe('plugin registration and config', () => {
     await ctx.plugin(LlmRuntime)
     LlmDeepSeek.apply(ctx, LlmDeepSeek.Config({ baseURL: 'http://127.0.0.1:1' }))
     await expect(ctx.llm.listModels('deepseek-official')).resolves.toEqual([
-      { provider: 'deepseek-official', id: 'deepseek-flash', name: 'DeepSeek-V4.1-Flash-1017', inputModalities: ['text', 'image'] },
+      { provider: 'deepseek-official', id: 'deepseek-flash', name: 'DeepSeek-V4.1-Flash', inputModalities: ['text', 'image'] },
       {
         provider: 'deepseek-official',
         id: 'deepseek-v4-pro',
@@ -2314,7 +2314,7 @@ describe('plugin registration and config', () => {
     const adapter = adapterOf()
     expect(adapter).toBeInstanceOf(DeepSeekAdapter)
     await expect(adapter.listModels('deepseek-official')).resolves.toEqual([])
-    await expect(adapter.resolveModel('deepseek-official', 'deepseek-flash')).resolves.toMatchObject({ name: 'DeepSeek-V4.1-Flash-1017' })
+    await expect(adapter.resolveModel('deepseek-official', 'deepseek-flash')).resolves.toMatchObject({ name: 'DeepSeek-V4.1-Flash' })
   })
 
   it('resolves connection facts and the credential exactly once per stream call', async () => {