Perplexity

通过 Mastra 的模型路由器访问 4 个 Perplexity 模型。系统会自动使用 PERPLEXITY_API_KEY 环境变量完成身份验证。

更多信息请参阅Perplexity 文档。

.env

PERPLEXITY_API_KEY=your-api-key

src/mastra/agents/my-agent.ts

import { Agent } from '@mastra/core/agent'

const agent = new Agent({
  id: 'my-agent',
  name: 'My Agent',
  instructions: 'You are a helpful assistant',
  model: 'perplexity/sonar',
})

// Generate a response
const response = await agent.generate('Hello!')

// Stream a response
const stream = await agent.stream('Tell me a story')
for await (const chunk of stream) {
  console.log(chunk)
}

模型

4 available models

Model	Context	Tools	Reasoning	Image	Audio	Video	Input $/1M	Output $/1M
perplexity/sonar	128K						$1	$1
perplexity/sonar-deep-research	128K						$2	$8
perplexity/sonar-pro	200K						$3	$15
perplexity/sonar-reasoning-pro	128K						$2	$8

高级配置

自定义请求头

src/mastra/agents/my-agent.ts

const agent = new Agent({
  id: 'custom-agent',
  name: 'custom-agent',
  model: {
    id: 'perplexity/sonar',
    apiKey: process.env.PERPLEXITY_API_KEY,
    headers: {
      'X-Custom-Header': 'value',
    },
  },
})

动态选择模型

src/mastra/agents/my-agent.ts

const agent = new Agent({
  id: 'dynamic-agent',
  name: 'Dynamic Agent',
  model: ({ requestContext }) => {
    const useAdvanced = requestContext.task === 'complex'
    return useAdvanced ? 'perplexity/sonar-reasoning-pro' : 'perplexity/sonar'
  },
})

直接安装 Provider

你也可以直接将此 Provider 安装为独立 package，用它代替 Mastra 模型路由字符串。详情请参阅package 文档。

npm

npm install @ai-sdk/perplexity

pnpm

pnpm add @ai-sdk/perplexity

Yarn

yarn add @ai-sdk/perplexity

Bun

bun add @ai-sdk/perplexity

有关此 Provider 的详细说明，请参阅 AI SDK Perplexity Provider 文档。