diff --git a/__tests__/validate.test.mjs b/__tests__/validate.test.mjs
index 924b010..8963f45 100644
--- a/__tests__/validate.test.mjs
+++ b/__tests__/validate.test.mjs
@@ -298,6 +298,32 @@ describe('provider schema 反例（防 PR #1 重演）', () => {
     assert.equal(validate(data), true, JSON.stringify(validate.errors))
   })
 
+  it('接受 extra.reasoning 能力矩阵，同时保留 extra 其他扩展字段', () => {
+    const data = makeValidProvider()
+    data.models[0].extra = {
+      reasoning: {
+        supportedEfforts: ['low', 'medium', 'high', 'xhigh', 'max'],
+        defaultEffort: 'medium',
+      },
+      providerSpecificFlag: true,
+    }
+    assert.equal(validate(data), true, JSON.stringify(validate.errors))
+  })
+
+  it('拒绝 Ultra 与重复 reasoning effort', () => {
+    const ultra = makeValidProvider()
+    ultra.models[0].extra = {
+      reasoning: { supportedEfforts: ['high', 'ultra'], defaultEffort: 'high' },
+    }
+    assert.equal(validate(ultra), false)
+
+    const duplicate = makeValidProvider()
+    duplicate.models[0].extra = {
+      reasoning: { supportedEfforts: ['high', 'high'], defaultEffort: 'high' },
+    }
+    assert.equal(validate(duplicate), false)
+  })
+
   it('接受 defaultTemperature: 0.7（合法 number）', () => {
     const data = makeValidProvider()
     data.models[0].defaultTemperature = 0.7
diff --git a/compute/providers/openai-codex.json b/compute/providers/openai-codex.json
index 61ee9ec..5b3971f 100644
--- a/compute/providers/openai-codex.json
+++ b/compute/providers/openai-codex.json
@@ -42,6 +42,12 @@
         "tool_use",
         "agent"
       ],
+      "extra": {
+        "reasoning": {
+          "supportedEfforts": ["low", "medium", "high", "xhigh", "max"],
+          "defaultEffort": "low"
+        }
+      },
       "source": "preset"
     },
     {
@@ -62,6 +68,12 @@
         "tool_use",
         "agent"
       ],
+      "extra": {
+        "reasoning": {
+          "supportedEfforts": ["low", "medium", "high", "xhigh", "max"],
+          "defaultEffort": "medium"
+        }
+      },
       "source": "preset"
     },
     {
@@ -82,6 +94,12 @@
         "tool_use",
         "fast"
       ],
+      "extra": {
+        "reasoning": {
+          "supportedEfforts": ["low", "medium", "high", "xhigh", "max"],
+          "defaultEffort": "medium"
+        }
+      },
       "source": "preset"
     },
     {
diff --git a/manifest.json b/manifest.json
index 1abf08c..1197159 100644
--- a/manifest.json
+++ b/manifest.json
@@ -1,6 +1,6 @@
 {
   "version": "1.0.0",
-  "presetDataVersion": 75,
+  "presetDataVersion": 76,
   "updatedAt": "2026-07-19",
   "description": "DesireCore 官方配置中心"
 }
diff --git a/schemas/provider.schema.json b/schemas/provider.schema.json
index 6b898d3..047bbc8 100644
--- a/schemas/provider.schema.json
+++ b/schemas/provider.schema.json
@@ -252,7 +252,31 @@
         },
         "extra": {
           "type": "object",
-          "description": "模型特定配置：如 TTS 模型音色列表、ASR 支持格式等",
+          "description": "模型特定配置：如 TTS 模型音色列表、ASR 支持格式、模型级 reasoning effort 能力等。这里是兼容扩展面：旧客户端会安全保留并忽略未知子字段。",
+          "properties": {
+            "reasoning": {
+              "type": "object",
+              "required": ["supportedEfforts"],
+              "properties": {
+                "supportedEfforts": {
+                  "type": "array",
+                  "minItems": 1,
+                  "uniqueItems": true,
+                  "items": {
+                    "type": "string",
+                    "enum": ["none", "minimal", "low", "medium", "high", "xhigh", "max"]
+                  },
+                  "description": "当前模型与接入面实际接受的 OpenAI reasoning effort。none 在产品层映射为 off；Ultra 是多 Agent 编排模式，禁止写入。"
+                },
+                "defaultEffort": {
+                  "type": "string",
+                  "enum": ["minimal", "low", "medium", "high", "xhigh", "max"],
+                  "description": "当前模型在此接入面的推荐显式默认档位，必须同时存在于 supportedEfforts。"
+                }
+              },
+              "additionalProperties": false
+            }
+          },
           "additionalProperties": true
         },
         "apiModelId": {