Modelis

透過 Mastra 的模型路由器存取 9 個 Modelis 模型。系統會自動使用 MODELIS_API_KEY 環境變數完成身分驗證。

如需進一步了解，請參閱Modelis 文件。

.env

MODELIS_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: 'modelis/claude-fable-5',
})

// 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)
}

資訊

Mastra 使用與 OpenAI 相容的 /chat/completions endpoint。部分 Provider 特有功能可能無法使用，詳情請參閱Modelis 文件。

模型

9 available models

Model	Context	Tools	Reasoning	Image	Audio	Video	Input $/1M	Output $/1M
modelis/claude-fable-5	1.0M						$10	$50
modelis/claude-opus-4-8	1.0M						$5	$25
modelis/claude-sonnet-4-6	1.0M						$3	$15
modelis/deepseek-v4-flash	1.0M						$0.10	$0.20
modelis/deepseek-v4-pro	1.0M						$0.43	$0.87
modelis/gemini-2.5-flash	1.0M						$0.30	$3
modelis/gemini-2.5-pro	1.0M						$1	$10
modelis/qwen/qwen3.7-max	1.0M						$3	$9
modelis/qwen/qwen3.7-plus	1.0M						$0.77	$3

進階設定

自訂標頭

src/mastra/agents/my-agent.ts

const agent = new Agent({
  id: 'custom-agent',
  name: 'custom-agent',
  model: {
    url: 'https://modelishub.com/v1',
    id: 'modelis/claude-fable-5',
    apiKey: process.env.MODELIS_API_KEY,
    headers: {
      'X-Custom-Header': 'value',
    },
  },
})

動態選擇模型

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 ? 'modelis/qwen/qwen3.7-plus' : 'modelis/claude-fable-5'
  },
})