diff --git a/frontend/src/components/ui/autocomplete.tsx b/frontend/src/components/ui/autocomplete.tsx
new file mode 100644
index 0000000..0f5dc74
--- /dev/null
+++ b/frontend/src/components/ui/autocomplete.tsx
@@ -0,0 +1,140 @@
+import * as React from 'react'
+import { Input } from '@/components/ui/input'
+import { cn } from '@/lib/utils'
+
+export type AutoCompleteOption = {
+  value: string
+  label?: string
+  description?: string
+  keywords?: string[]
+}
+
+type AutoCompleteProps = Omit<React.InputHTMLAttributes<HTMLInputElement>, 'value' | 'onChange'> & {
+  value: string
+  onChange: (value: string) => void
+  options: AutoCompleteOption[]
+  emptyText?: string
+  dropdownClassName?: string
+  inputClassName?: string
+}
+
+const normalizeText = (value: string): string => value.trim().toLowerCase()
+
+const matchesOption = (option: AutoCompleteOption, query: string): boolean => {
+  if (!query) return true
+
+  const haystack = [
+    option.value,
+    option.label || '',
+    option.description || '',
+    ...(option.keywords || []),
+  ]
+    .join(' ')
+    .toLowerCase()
+
+  return haystack.includes(query)
+}
+
+export const AutoCompleteInput = React.forwardRef<HTMLInputElement, AutoCompleteProps>(
+  (
+    {
+      value,
+      onChange,
+      options,
+      emptyText = '无匹配结果',
+      className,
+      dropdownClassName,
+      inputClassName,
+      onFocus,
+      onBlur,
+      disabled,
+      ...props
+    },
+    ref
+  ) => {
+    const containerRef = React.useRef<HTMLDivElement | null>(null)
+    const [isOpen, setIsOpen] = React.useState(false)
+
+    React.useEffect(() => {
+      const handlePointerDown = (event: MouseEvent) => {
+        if (!containerRef.current?.contains(event.target as Node)) {
+          setIsOpen(false)
+        }
+      }
+
+      document.addEventListener('mousedown', handlePointerDown)
+      return () => document.removeEventListener('mousedown', handlePointerDown)
+    }, [])
+
+    const query = normalizeText(value)
+    const dedupedOptions = options.filter((option, index) => {
+      return options.findIndex((candidate) => candidate.value === option.value) === index
+    })
+    const filteredOptions = dedupedOptions.filter((option) => matchesOption(option, query)).slice(0, 12)
+
+    const handleSelect = (selectedValue: string) => {
+      onChange(selectedValue)
+      setIsOpen(false)
+    }
+
+    return (
+      <div ref={containerRef} className={cn('relative', className)}>
+        <Input
+          {...props}
+          ref={ref}
+          disabled={disabled}
+          value={value}
+          onFocus={(event) => {
+            setIsOpen(true)
+            onFocus?.(event)
+          }}
+          onBlur={(event) => {
+            onBlur?.(event)
+          }}
+          onChange={(event) => {
+            onChange(event.target.value)
+            setIsOpen(true)
+          }}
+          className={inputClassName}
+        />
+
+        {isOpen && !disabled && (
+          <div
+            className={cn(
+              'absolute z-20 mt-1 w-full overflow-hidden rounded-lg border bg-popover shadow-lg',
+              dropdownClassName
+            )}
+          >
+            {filteredOptions.length > 0 ? (
+              <div className="max-h-72 overflow-y-auto py-1">
+                {filteredOptions.map((option) => {
+                  const label = option.label || option.value
+                  const showDescription = option.description && option.description !== label
+
+                  return (
+                    <button
+                      key={option.value}
+                      type="button"
+                      className="flex w-full flex-col items-start gap-0.5 px-3 py-2 text-left hover:bg-muted/80 transition-colors"
+                      onMouseDown={(event) => event.preventDefault()}
+                      onClick={() => handleSelect(option.value)}
+                    >
+                      <span className="text-sm font-medium">{label}</span>
+                      {showDescription && (
+                        <span className="text-xs text-muted-foreground">{option.description}</span>
+                      )}
+                    </button>
+                  )
+                })}
+              </div>
+            ) : (
+              <div className="px-3 py-2 text-sm text-muted-foreground">{emptyText}</div>
+            )}
+          </div>
+        )}
+      </div>
+    )
+  }
+)
+
+AutoCompleteInput.displayName = 'AutoCompleteInput'
diff --git a/frontend/src/lib/channel-models.ts b/frontend/src/lib/channel-models.ts
new file mode 100644
index 0000000..51099fb
--- /dev/null
+++ b/frontend/src/lib/channel-models.ts
@@ -0,0 +1,115 @@
+import { Channel, ChannelConfig, ChannelModelMapping, Token, TokenConfig } from '@/types'
+
+const normalizeModels = (models?: ChannelModelMapping[]): ChannelModelMapping[] => {
+  if (!Array.isArray(models)) {
+    return []
+  }
+
+  return models
+    .map((model) => ({
+      id: typeof model?.id === 'string' ? model.id.trim() : '',
+      name: typeof model?.name === 'string' ? model.name.trim() : '',
+    }))
+    .filter((model) => model.id.length > 0)
+    .map((model) => ({
+      id: model.id,
+      name: model.name || model.id,
+    }))
+}
+
+export const parseChannelConfig = (channel: Channel): ChannelConfig => {
+  if (typeof channel.value !== 'string') {
+    return channel.value
+  }
+
+  try {
+    return JSON.parse(channel.value) as ChannelConfig
+  } catch {
+    return {} as ChannelConfig
+  }
+}
+
+export const parseTokenConfig = (token: Token): TokenConfig => {
+  if (typeof token.value !== 'string') {
+    return token.value
+  }
+
+  try {
+    return JSON.parse(token.value) as TokenConfig
+  } catch {
+    return {} as TokenConfig
+  }
+}
+
+export const getChannelModels = (config: ChannelConfig): ChannelModelMapping[] => {
+  const normalizedModels = normalizeModels(config.models)
+  if (normalizedModels.length > 0) {
+    return normalizedModels
+  }
+
+  const deploymentMapper = config.deployment_mapper || {}
+  const supportedModels = Array.isArray(config.supported_models) ? config.supported_models : []
+  const models: ChannelModelMapping[] = []
+  const seenNames = new Set<string>()
+
+  const pushModel = (id: string, name?: string) => {
+    const normalizedId = id.trim()
+    const normalizedName = (name || id).trim()
+
+    if (!normalizedId || !normalizedName || seenNames.has(normalizedName)) {
+      return
+    }
+
+    seenNames.add(normalizedName)
+    models.push({
+      id: normalizedId,
+      name: normalizedName,
+    })
+  }
+
+  supportedModels.forEach((modelName) => {
+    const normalizedName = typeof modelName === 'string' ? modelName.trim() : ''
+    if (!normalizedName) {
+      return
+    }
+
+    pushModel(deploymentMapper[normalizedName] || normalizedName, normalizedName)
+  })
+
+  Object.entries(deploymentMapper).forEach(([modelName, modelId]) => {
+    if (typeof modelId !== 'string') {
+      return
+    }
+
+    pushModel(modelId, modelName)
+  })
+
+  return models
+}
+
+export const getUniqueModelNamesFromChannels = (channels: Channel[]): string[] => {
+  const modelNames = new Set<string>()
+
+  channels.forEach((channel) => {
+    const config = parseChannelConfig(channel)
+    getChannelModels(config).forEach((model) => modelNames.add(model.name))
+  })
+
+  return Array.from(modelNames).sort()
+}
+
+export const getModelNamesForToken = (tokenKey: string, tokens: Token[], channels: Channel[]): string[] => {
+  const matchedToken = tokens.find((token) => token.key === tokenKey)
+
+  if (!matchedToken) {
+    return getUniqueModelNamesFromChannels(channels)
+  }
+
+  const tokenConfig = parseTokenConfig(matchedToken)
+  const allowedChannelKeys = tokenConfig.channel_keys || []
+  const targetChannels = allowedChannelKeys.length === 0
+    ? channels
+    : channels.filter((channel) => allowedChannelKeys.includes(channel.key))
+
+  return getUniqueModelNamesFromChannels(targetChannels)
+}
diff --git a/frontend/src/pages/ApiTest.tsx b/frontend/src/pages/ApiTest.tsx
index 3a33f11..56e1ee8 100644
--- a/frontend/src/pages/ApiTest.tsx
+++ b/frontend/src/pages/ApiTest.tsx
@@ -1,17 +1,18 @@
-import { useEffect, useState } from 'react'
+import { useEffect, useMemo, useState } from 'react'
 import { Card, CardContent } from '@/components/ui/card'
 import { Button } from '@/components/ui/button'
-import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
 import { Textarea } from '@/components/ui/textarea'
 import { Select } from '@/components/ui/select'
 import { Badge } from '@/components/ui/badge'
 import { useToast } from '@/components/ui/use-toast'
 import { apiClient } from '@/api/client'
-import { AudioTestResponse, TestResponse } from '@/types'
+import { AudioTestResponse, Channel, TestResponse, Token } from '@/types'
+import { AutoCompleteInput, type AutoCompleteOption } from '@/components/ui/autocomplete'
 import { Send, Clock, CheckCircle, XCircle, Copy, Download } from 'lucide-react'
 import { PageContainer } from '@/components/ui/page-container'
 import { cn, copyToClipboard } from '@/lib/utils'
+import { getModelNamesForToken, parseTokenConfig } from '@/lib/channel-models'
 
 const requestTemplates: Record<string, any> = {
   '/v1/chat/completions': {
@@ -52,12 +53,22 @@ const requestTemplates: Record<string, any> = {
   },
 }
 
+const buildRequestBody = (endpoint: string, model = '') => {
+  const template = requestTemplates[endpoint] || {}
+  const { model: _templateModel, ...rest } = template
+
+  return JSON.stringify(
+    model ? { ...rest, model } : rest,
+    null,
+    2
+  )
+}
+
 export function ApiTest() {
   const [endpoint, setEndpoint] = useState('/v1/chat/completions')
   const [apiToken, setApiToken] = useState('')
-  const [requestBody, setRequestBody] = useState(
-    JSON.stringify(requestTemplates['/v1/chat/completions'], null, 2)
-  )
+  const [modelValue, setModelValue] = useState('')
+  const [requestBody, setRequestBody] = useState(buildRequestBody('/v1/chat/completions'))
   const [isLoading, setIsLoading] = useState(false)
   const [response, setResponse] = useState<any>(null)
   const [responseTime, setResponseTime] = useState<number>(0)
@@ -65,6 +76,9 @@ export function ApiTest() {
 
   const { addToast } = useToast()
 
+  const [tokens, setTokens] = useState<Token[]>([])
+  const [channels, setChannels] = useState<Channel[]>([])
+
   const isAudioResponse = (value: TestResponse | { error: string } | null): value is AudioTestResponse => {
     return !!value && value.object === 'audio' && typeof value.url === 'string'
   }
@@ -77,9 +91,56 @@ export function ApiTest() {
     }
   }, [response])
 
+  useEffect(() => {
+    const loadOptions = async () => {
+      try {
+        const [tokenResponse, channelResponse] = await Promise.all([
+          apiClient.getTokens(),
+          apiClient.getChannels(),
+        ])
+
+        setTokens((tokenResponse.data as Token[]) || [])
+        setChannels((channelResponse.data as Channel[]) || [])
+      } catch (error) {
+        console.error('Failed to load API test options:', error)
+      }
+    }
+
+    loadOptions()
+  }, [])
+
+  const availableModels = useMemo(
+    () => getModelNamesForToken(apiToken, tokens, channels),
+    [apiToken, tokens, channels]
+  )
+
+  useEffect(() => {
+    if (availableModels.length === 0) {
+      return
+    }
+
+    if (modelValue) {
+      return
+    }
+
+    const nextModel = availableModels[0]
+    setModelValue(nextModel)
+    setRequestBody((currentBody) => {
+      try {
+        const parsedBody = JSON.parse(currentBody)
+        parsedBody.model = nextModel
+        return JSON.stringify(parsedBody, null, 2)
+      } catch {
+        return buildRequestBody(endpoint, nextModel)
+      }
+    })
+  }, [availableModels])
+
   const handleEndpointChange = (newEndpoint: string) => {
     setEndpoint(newEndpoint)
-    setRequestBody(JSON.stringify(requestTemplates[newEndpoint], null, 2))
+    const nextModel = availableModels[0] || ''
+    setModelValue(nextModel)
+    setRequestBody(buildRequestBody(newEndpoint, nextModel))
   }
 
   const handleCopyResponse = async () => {
@@ -101,6 +162,31 @@ export function ApiTest() {
     }
   }
 
+  const updateRequestBodyModel = (nextModel: string) => {
+    setModelValue(nextModel)
+
+    try {
+      const parsedBody = JSON.parse(requestBody)
+      parsedBody.model = nextModel
+      setRequestBody(JSON.stringify(parsedBody, null, 2))
+    } catch {
+      setRequestBody(buildRequestBody(endpoint, nextModel))
+    }
+  }
+
+  const handleRequestBodyChange = (value: string) => {
+    setRequestBody(value)
+
+    try {
+      const parsedBody = JSON.parse(value)
+      if (typeof parsedBody?.model === 'string') {
+        setModelValue(parsedBody.model)
+      }
+    } catch {
+      // Keep the current model selection while the JSON is temporarily invalid.
+    }
+  }
+
   const handleSubmit = async (e: React.FormEvent) => {
     e.preventDefault()
 
@@ -139,6 +225,21 @@ export function ApiTest() {
     }
   }
 
+  const tokenOptions: AutoCompleteOption[] = tokens.map((token) => {
+    const tokenConfig = parseTokenConfig(token)
+
+    return {
+      value: token.key,
+      label: tokenConfig.name || token.key,
+      description: token.key,
+      keywords: [token.key, tokenConfig.name || ''],
+    }
+  })
+
+  const modelOptions: AutoCompleteOption[] = availableModels.map((model) => ({
+    value: model,
+  }))
+
   return (
     <PageContainer
       title="API 测试"
@@ -170,11 +271,25 @@ export function ApiTest() {
 
               <div className="space-y-2">
                 <Label className="text-xs font-medium text-muted-foreground uppercase tracking-wider">API 令牌</Label>
-                <Input
-                  type="password"
+                <AutoCompleteInput
                   value={apiToken}
-                  onChange={(e) => setApiToken(e.target.value)}
+                  onChange={setApiToken}
                   placeholder="sk-..."
+                  inputClassName="font-mono"
+                  options={tokenOptions}
+                  emptyText="没有匹配的令牌"
+                />
+              </div>
+
+              <div className="space-y-2">
+                <Label className="text-xs font-medium text-muted-foreground uppercase tracking-wider">模型</Label>
+                <AutoCompleteInput
+                  value={modelValue}
+                  onChange={updateRequestBodyModel}
+                  placeholder="选择或输入模型名称"
+                  inputClassName="font-mono"
+                  options={modelOptions}
+                  emptyText="没有匹配的模型"
                 />
               </div>
 
@@ -182,7 +297,7 @@ export function ApiTest() {
                 <Label className="text-xs font-medium text-muted-foreground uppercase tracking-wider">请求体</Label>
                 <Textarea
                   value={requestBody}
-                  onChange={(e) => setRequestBody(e.target.value)}
+                  onChange={(e) => handleRequestBodyChange(e.target.value)}
                   rows={14}
                   className="font-mono text-sm"
                 />
diff --git a/frontend/src/pages/Pricing.tsx b/frontend/src/pages/Pricing.tsx
index 15cfbcc..8457093 100644
--- a/frontend/src/pages/Pricing.tsx
+++ b/frontend/src/pages/Pricing.tsx
@@ -1,13 +1,15 @@
 import { useState, useEffect } from 'react'
 import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query'
 import { apiClient } from '@/api/client'
-import { PricingConfig } from '@/types'
+import { Channel, PricingConfig } from '@/types'
+import { AutoCompleteInput, type AutoCompleteOption } from '@/components/ui/autocomplete'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
 import { Textarea } from '@/components/ui/textarea'
 import { useToast } from '@/components/ui/use-toast'
 import { cn } from '@/lib/utils'
+import { getUniqueModelNamesFromChannels } from '@/lib/channel-models'
 import {
   Plus,
   RefreshCw,
@@ -30,6 +32,7 @@ export function Pricing() {
     Array<{ model: string; input: number; output: number; cache: number; request: number }>
   >([])
   const [searchQuery, setSearchQuery] = useState('')
+  const [modelOptions, setModelOptions] = useState<AutoCompleteOption[]>([])
 
   const { addToast } = useToast()
   const queryClient = useQueryClient()
@@ -42,6 +45,21 @@ export function Pricing() {
     },
   })
 
+  useEffect(() => {
+    const loadChannelModels = async () => {
+      try {
+        const response = await apiClient.getChannels()
+        const channels = response.data as Channel[]
+        const modelNames = getUniqueModelNamesFromChannels(channels)
+        setModelOptions(modelNames.map((model) => ({ value: model })))
+      } catch (error) {
+        console.error('Failed to load channels for pricing suggestions:', error)
+      }
+    }
+
+    loadChannelModels()
+  }, [])
+
   useEffect(() => {
     if (data) {
       const rows = Object.entries(data).map(([model, pricing]) => ({
@@ -152,6 +170,14 @@ export function Pricing() {
     .map((row, index) => ({ ...row, _i: index }))
     .filter((row) => row.model.toLowerCase().includes(searchQuery.toLowerCase()))
 
+  const pricingModelOptions = [
+    ...pricingRows
+      .map((row) => row.model.trim())
+      .filter((model) => model.length > 0)
+      .map((model) => ({ value: model })),
+    ...modelOptions,
+  ].filter((option, index, options) => options.findIndex((candidate) => candidate.value === option.value) === index)
+
   return (
     <PageContainer
       title="定价管理"
@@ -217,7 +243,7 @@ export function Pricing() {
             )}
 
             {/* Table */}
-            <div className="rounded-xl border bg-card overflow-hidden">
+            <div className="rounded-xl border bg-card">
               {/* Header */}
               <div className="grid gap-2 px-4 py-2.5 border-b bg-muted/30" style={{ gridTemplateColumns: '2fr 1fr 1fr 1fr 1fr 40px' }}>
                 <span className="text-xs font-medium text-muted-foreground">模型名称</span>
@@ -232,11 +258,13 @@ export function Pricing() {
               <div className="divide-y">
                 {filteredRows.map((row) => (
                   <div key={row._i} className="grid gap-2 px-4 py-2 items-center hover:bg-muted/20 transition-colors" style={{ gridTemplateColumns: '2fr 1fr 1fr 1fr 1fr 40px' }}>
-                    <Input
+                    <AutoCompleteInput
                       value={row.model}
-                      onChange={(e) => updateRow(row._i, 'model', e.target.value)}
+                      onChange={(value) => updateRow(row._i, 'model', value)}
                       placeholder="模型名称"
-                      className="font-mono text-sm h-8"
+                      inputClassName="font-mono text-sm h-8"
+                      options={pricingModelOptions}
+                      emptyText="没有匹配的模型"
                     />
                     <Input
                       type="number"