diff --git a/frontend/src/api/admin/ops.ts b/frontend/src/api/admin/ops.ts
index 64f6a6d0..ac58eff4 100644
--- a/frontend/src/api/admin/ops.ts
+++ b/frontend/src/api/admin/ops.ts
@@ -969,6 +969,13 @@ export interface OpsErrorLog {
   client_ip?: string | null
   request_path?: string
   stream?: boolean
+
+  // Error observability context (endpoint + model mapping)
+  inbound_endpoint?: string
+  upstream_endpoint?: string
+  requested_model?: string
+  upstream_model?: string
+  request_type?: number | null
 }
 
 export interface OpsErrorDetail extends OpsErrorLog {
diff --git a/frontend/src/i18n/locales/en.ts b/frontend/src/i18n/locales/en.ts
index e5a370c8..b5bba9a2 100644
--- a/frontend/src/i18n/locales/en.ts
+++ b/frontend/src/i18n/locales/en.ts
@@ -3486,7 +3486,12 @@ export default {
         typeRequest: 'Request',
         typeAuth: 'Auth',
         typeRouting: 'Routing',
-        typeInternal: 'Internal'
+        typeInternal: 'Internal',
+        endpoint: 'Endpoint',
+        requestType: 'Type',
+        requestTypeSync: 'Sync',
+        requestTypeStream: 'Stream',
+        requestTypeWs: 'WS'
       },
       // Error Details Modal
       errorDetails: {
@@ -3572,6 +3577,16 @@ export default {
         latency: 'Request Duration',
         businessLimited: 'Business Limited',
         requestPath: 'Request Path',
+        inboundEndpoint: 'Inbound Endpoint',
+        upstreamEndpoint: 'Upstream Endpoint',
+        requestedModel: 'Requested Model',
+        upstreamModel: 'Upstream Model',
+        requestType: 'Request Type',
+        requestTypeUnknown: 'Unknown',
+        requestTypeSync: 'Sync',
+        requestTypeStream: 'Stream',
+        requestTypeWs: 'WebSocket',
+        modelMapping: 'Model Mapping',
         timings: 'Timings',
         auth: 'Auth',
         routing: 'Routing',
diff --git a/frontend/src/i18n/locales/zh.ts b/frontend/src/i18n/locales/zh.ts
index ac6632be..05c69426 100644
--- a/frontend/src/i18n/locales/zh.ts
+++ b/frontend/src/i18n/locales/zh.ts
@@ -3651,7 +3651,12 @@ export default {
         typeRequest: '请求',
         typeAuth: '认证',
         typeRouting: '路由',
-        typeInternal: '内部'
+        typeInternal: '内部',
+        endpoint: '端点',
+        requestType: '类型',
+        requestTypeSync: '同步',
+        requestTypeStream: '流式',
+        requestTypeWs: 'WS'
       },
       // Error Details Modal
       errorDetails: {
@@ -3737,6 +3742,16 @@ export default {
         latency: '请求时长',
         businessLimited: '业务限制',
         requestPath: '请求路径',
+        inboundEndpoint: '入站端点',
+        upstreamEndpoint: '上游端点',
+        requestedModel: '请求模型',
+        upstreamModel: '上游模型',
+        requestType: '请求类型',
+        requestTypeUnknown: '未知',
+        requestTypeSync: '同步',
+        requestTypeStream: '流式',
+        requestTypeWs: 'WebSocket',
+        modelMapping: '模型映射',
         timings: '时序信息',
         auth: '认证',
         routing: '路由',
diff --git a/frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue b/frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue
index a7edff96..4bcd0c41 100644
--- a/frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue
+++ b/frontend/src/views/admin/ops/components/OpsErrorDetailModal.vue
@@ -59,7 +59,28 @@
         <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
           <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.model') }}</div>
           <div class="mt-1 text-sm font-medium text-gray-900 dark:text-white">
-            {{ detail.model || '—' }}
+            <template v-if="detail.requested_model && detail.upstream_model && detail.requested_model !== detail.upstream_model">
+              <span class="font-mono">{{ detail.requested_model }}</span>
+              <span class="mx-1 text-gray-400">→</span>
+              <span class="font-mono text-primary-600 dark:text-primary-400">{{ detail.upstream_model }}</span>
+            </template>
+            <template v-else>
+              {{ detail.requested_model || detail.model || '—' }}
+            </template>
+          </div>
+        </div>
+
+        <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
+          <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.inboundEndpoint') }}</div>
+          <div class="mt-1 break-all font-mono text-sm font-medium text-gray-900 dark:text-white">
+            {{ detail.inbound_endpoint || '—' }}
+          </div>
+        </div>
+
+        <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
+          <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.upstreamEndpoint') }}</div>
+          <div class="mt-1 break-all font-mono text-sm font-medium text-gray-900 dark:text-white">
+            {{ detail.upstream_endpoint || '—' }}
           </div>
         </div>
 
@@ -72,6 +93,13 @@
           </div>
         </div>
 
+        <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
+          <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.requestType') }}</div>
+          <div class="mt-1 text-sm font-medium text-gray-900 dark:text-white">
+            {{ formatRequestTypeLabel(detail.request_type) }}
+          </div>
+        </div>
+
         <div class="rounded-xl bg-gray-50 p-4 dark:bg-dark-900">
           <div class="text-xs font-bold uppercase tracking-wider text-gray-400">{{ t('admin.ops.errorDetail.message') }}</div>
           <div class="mt-1 truncate text-sm font-medium text-gray-900 dark:text-white" :title="detail.message">
@@ -213,6 +241,15 @@ function isUpstreamError(d: OpsErrorDetail | null): boolean {
   return phase === 'upstream' && owner === 'provider'
 }
 
+function formatRequestTypeLabel(type: number | null | undefined): string {
+  switch (type) {
+    case 1: return t('admin.ops.errorDetail.requestTypeSync')
+    case 2: return t('admin.ops.errorDetail.requestTypeStream')
+    case 3: return t('admin.ops.errorDetail.requestTypeWs')
+    default: return t('admin.ops.errorDetail.requestTypeUnknown')
+  }
+}
+
 const correlatedUpstream = ref<OpsErrorDetail[]>([])
 const correlatedUpstreamLoading = ref(false)
 
diff --git a/frontend/src/views/admin/ops/components/OpsErrorLogTable.vue b/frontend/src/views/admin/ops/components/OpsErrorLogTable.vue
index 28868552..23377257 100644
--- a/frontend/src/views/admin/ops/components/OpsErrorLogTable.vue
+++ b/frontend/src/views/admin/ops/components/OpsErrorLogTable.vue
@@ -17,6 +17,9 @@
               <th class="border-b border-gray-200 px-4 py-2.5 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:border-dark-700 dark:text-dark-400">
                 {{ t('admin.ops.errorLog.type') }}
               </th>
+              <th class="border-b border-gray-200 px-4 py-2.5 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:border-dark-700 dark:text-dark-400">
+                {{ t('admin.ops.errorLog.endpoint') }}
+              </th>
               <th class="border-b border-gray-200 px-4 py-2.5 text-left text-[11px] font-bold uppercase tracking-wider text-gray-500 dark:border-dark-700 dark:text-dark-400">
                 {{ t('admin.ops.errorLog.platform') }}
               </th>
@@ -42,7 +45,7 @@
           </thead>
           <tbody class="divide-y divide-gray-100 dark:divide-dark-700">
             <tr v-if="rows.length === 0">
-              <td colspan="9" class="py-12 text-center text-sm text-gray-400 dark:text-dark-500">
+              <td colspan="10" class="py-12 text-center text-sm text-gray-400 dark:text-dark-500">
                 {{ t('admin.ops.errorLog.noErrors') }}
               </td>
             </tr>
@@ -74,6 +77,18 @@
                 </span>
               </td>
 
+              <!-- Endpoint -->
+              <td class="px-4 py-2">
+                <div class="max-w-[160px]">
+                  <el-tooltip v-if="log.inbound_endpoint" :content="formatEndpointTooltip(log)" placement="top" :show-after="500">
+                    <span class="truncate font-mono text-[11px] text-gray-700 dark:text-gray-300">
+                      {{ log.inbound_endpoint }}
+                    </span>
+                  </el-tooltip>
+                  <span v-else class="text-xs text-gray-400">-</span>
+                </div>
+              </td>
+
               <!-- Platform -->
               <td class="whitespace-nowrap px-4 py-2">
                 <span class="inline-flex items-center rounded bg-gray-100 px-1.5 py-0.5 text-[10px] font-bold uppercase text-gray-600 dark:bg-dark-700 dark:text-gray-300">
@@ -83,11 +98,22 @@
 
               <!-- Model -->
               <td class="px-4 py-2">
-                <div class="max-w-[120px] truncate" :title="log.model">
-                  <span v-if="log.model" class="font-mono text-[11px] text-gray-700 dark:text-gray-300">
-                    {{ log.model }}
-                  </span>
-                  <span v-else class="text-xs text-gray-400">-</span>
+                <div class="max-w-[160px]">
+                  <template v-if="log.requested_model && log.upstream_model && log.requested_model !== log.upstream_model">
+                    <el-tooltip :content="`${log.requested_model} → ${log.upstream_model}`" placement="top" :show-after="500">
+                      <span class="flex items-center gap-1 truncate font-mono text-[11px] text-gray-700 dark:text-gray-300">
+                        <span class="truncate">{{ log.requested_model }}</span>
+                        <span class="flex-shrink-0 text-gray-400">→</span>
+                        <span class="truncate text-primary-600 dark:text-primary-400">{{ log.upstream_model }}</span>
+                      </span>
+                    </el-tooltip>
+                  </template>
+                  <template v-else>
+                    <span v-if="displayModel(log)" class="truncate font-mono text-[11px] text-gray-700 dark:text-gray-300" :title="displayModel(log)">
+                      {{ displayModel(log) }}
+                    </span>
+                    <span v-else class="text-xs text-gray-400">-</span>
+                  </template>
                 </div>
               </td>
 
@@ -138,6 +164,12 @@
                   >
                     {{ log.severity }}
                   </span>
+                  <span
+                    v-if="log.request_type != null && log.request_type > 0"
+                    class="rounded bg-gray-100 px-1.5 py-0.5 text-[10px] font-bold text-gray-600 dark:bg-dark-700 dark:text-gray-300"
+                  >
+                    {{ formatRequestType(log.request_type) }}
+                  </span>
                 </div>
               </td>
 
@@ -193,6 +225,26 @@ function isUpstreamRow(log: OpsErrorLog): boolean {
   return phase === 'upstream' && owner === 'provider'
 }
 
+function formatEndpointTooltip(log: OpsErrorLog): string {
+  const parts: string[] = []
+  if (log.inbound_endpoint) parts.push(`Inbound: ${log.inbound_endpoint}`)
+  if (log.upstream_endpoint) parts.push(`Upstream: ${log.upstream_endpoint}`)
+  return parts.join('\n') || ''
+}
+
+function displayModel(log: OpsErrorLog): string {
+  return log.requested_model || log.model || ''
+}
+
+function formatRequestType(type: number | null | undefined): string {
+  switch (type) {
+    case 1: return t('admin.ops.errorLog.requestTypeSync')
+    case 2: return t('admin.ops.errorLog.requestTypeStream')
+    case 3: return t('admin.ops.errorLog.requestTypeWs')
+    default: return ''
+  }
+}
+
 function getTypeBadge(log: OpsErrorLog): { label: string; className: string } {
   const phase = String(log.phase || '').toLowerCase()
   const owner = String(log.error_owner || '').toLowerCase()