diff --git a/__tests__/validate.test.mjs b/__tests__/validate.test.mjs
index 79ca963..c2f8c1a 100644
--- a/__tests__/validate.test.mjs
+++ b/__tests__/validate.test.mjs
@@ -244,6 +244,35 @@ describe('真实数据全量校验', () => {
     assert.ok(specs[0].spec.capabilities.includes('asr'))
   })
 
+  it('Ox Alpha 应提供与 OpenRouter 一致的多模态推理规格', () => {
+    const provider = JSON.parse(readFileSync(join(ROOT, 'compute', 'providers', 'openrouter.json'), 'utf8'))
+    const specFile = JSON.parse(readFileSync(join(ROOT, 'compute', 'model-specs', 'stealth.json'), 'utf8'))
+    const model = provider.models.find((item) => item.modelName === 'stealth/ox-alpha')
+    const modelSpec = specFile.specs.find((item) => item.id === 'ox-alpha')
+
+    assert.ok(model, 'OpenRouter provider 缺少 stealth/ox-alpha')
+    assert.ok(modelSpec, 'model-specs 缺少 ox-alpha')
+
+    for (const item of [model, modelSpec.spec]) {
+      assert.equal(item.contextWindow, 1048576)
+      assert.equal(item.maxOutputTokens, 131072)
+      assert.equal(item.defaultTemperature, 1)
+      assert.equal(item.defaultTopP, 0.95)
+      assert.ok(item.capabilities.includes('reasoning'))
+      assert.ok(item.capabilities.includes('vision'))
+      assert.ok(item.capabilities.includes('video_understanding'))
+    }
+
+    assert.deepEqual(model.extra.reasoning.supportedEfforts, ['low', 'high', 'max'])
+    assert.equal(model.extra.reasoning.defaultEffort, 'max')
+    assert.equal(model.extra.thinking.disableSupported, false)
+    assert.equal(model.inputPrice, 0)
+    assert.equal(model.outputPrice, 0)
+    assert.deepEqual(modelSpec.match.exact, ['stealth/ox-alpha'])
+    assert.equal(modelSpec.spec.supportsReasoning, true)
+    assert.equal(modelSpec.spec.releasedAt, '2026-08-21')
+  })
+
   it('MiMo V2.5 仅非 Pro 型号应声明多模态能力', () => {
     const provider = JSON.parse(readFileSync(join(ROOT, 'compute', 'providers', 'xiaomi.json'), 'utf8'))
     const specFile = JSON.parse(readFileSync(join(ROOT, 'compute', 'model-specs', 'xiaomi.json'), 'utf8'))
diff --git a/compute/model-specs/_index.json b/compute/model-specs/_index.json
index 30e80cc..b29f84a 100644
--- a/compute/model-specs/_index.json
+++ b/compute/model-specs/_index.json
@@ -22,6 +22,7 @@
     "tencent",
     "volcengine",
     "xunfei",
+    "stealth",
     "happyhorse"
   ],
   "routingTiers": [
diff --git a/compute/model-specs/stealth.json b/compute/model-specs/stealth.json
new file mode 100644
index 0000000..d472e68
--- /dev/null
+++ b/compute/model-specs/stealth.json
@@ -0,0 +1,45 @@
+{
+  "description": "Stealth 系列模型规格。参数来源：OpenRouter Models API。",
+  "specs": [
+    {
+      "id": "ox-alpha",
+      "displayName": "Ox Alpha",
+      "family": "ox-alpha",
+      "match": {
+        "exact": [
+          "stealth/ox-alpha"
+        ]
+      },
+      "spec": {
+        "contextWindow": 1048576,
+        "maxOutputTokens": 131072,
+        "capabilities": [
+          "chat",
+          "reasoning",
+          "deep_thinking",
+          "code",
+          "tool_use",
+          "agent",
+          "long_context",
+          "vision",
+          "image_understanding",
+          "video_understanding"
+        ],
+        "serviceType": [
+          "chat",
+          "reasoning",
+          "vision"
+        ],
+        "defaultTemperature": 1,
+        "defaultTopP": 0.95,
+        "supportsReasoning": true,
+        "description": "Ox Alpha 多模态推理模型，面向编程、长程 Agent、复杂推理与生产工作负载",
+        "extra": {
+          "thinkingDefault": true,
+          "thinkingOnly": true
+        },
+        "releasedAt": "2026-08-21"
+      }
+    }
+  ]
+}
diff --git a/compute/providers/openrouter.json b/compute/providers/openrouter.json
index 2f0a5b1..250bf69 100644
--- a/compute/providers/openrouter.json
+++ b/compute/providers/openrouter.json
@@ -9,8 +9,54 @@
   "enabled": false,
   "status": "unconfigured",
   "priceCurrency": "USD",
-  "services": ["chat"],
+  "services": [
+    "chat",
+    "reasoning",
+    "vision"
+  ],
   "models": [
+    {
+      "modelName": "stealth/ox-alpha",
+      "displayName": "Ox Alpha (免费)",
+      "serviceType": [
+        "chat",
+        "reasoning",
+        "vision"
+      ],
+      "description": "通过 OpenRouter 免费使用的 Ox Alpha，面向编程、长程 Agent 与复杂推理，支持文本、图片和视频输入",
+      "contextWindow": 1048576,
+      "maxOutputTokens": 131072,
+      "capabilities": [
+        "chat",
+        "reasoning",
+        "deep_thinking",
+        "code",
+        "tool_use",
+        "agent",
+        "long_context",
+        "vision",
+        "image_understanding",
+        "video_understanding"
+      ],
+      "inputPrice": 0.00,
+      "outputPrice": 0.00,
+      "defaultTemperature": 1,
+      "defaultTopP": 0.95,
+      "extra": {
+        "reasoning": {
+          "supportedEfforts": [
+            "low",
+            "high",
+            "max"
+          ],
+          "defaultEffort": "max"
+        },
+        "thinking": {
+          "default": "enabled",
+          "disableSupported": false
+        }
+      }
+    },
     {
       "modelName": "openrouter/auto",
       "displayName": "OpenRouter Auto",
diff --git a/manifest.json b/manifest.json
index 62d03cd..e50fb1a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,6 @@
 {
   "version": "1.0.0",
-  "presetDataVersion": 90,
-  "updatedAt": "2026-08-10",
+  "presetDataVersion": 91,
+  "updatedAt": "2026-08-21",
   "description": "DesireCore 官方配置中心"
 }