Deep Infra

Access 6 Deep Infra models through Mastra's model router. Authentication is handled automatically using the DEEPINFRA_API_KEY environment variable.

Learn more in the Deep Infra documentation.

DEEPINFRA_API_KEY=your-api-key

import { Agent } from "@mastra/core";

const agent = new Agent({
  name: "my-agent",
  instructions: "You are a helpful assistant",
  model: "deepinfra/Qwen/Qwen3-Coder-480B-A35B-Instruct"
});

// 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);
}

info

Mastra uses the OpenAI-compatible /chat/completions endpoint. Some provider-specific features may not be available. Check the Deep Infra documentation for details.

Models

6 available models

Model	Context	Tools	Reasoning	Image	Audio	Video	Input $/1M	Output $/1M
deepinfra/moonshotai/Kimi-K2-Instruct	131K						$0.50	$2
deepinfra/openai/gpt-oss-120b	131K						$0.05	$0.24
deepinfra/openai/gpt-oss-20b	131K						$0.03	$0.14
deepinfra/Qwen/Qwen3-Coder-480B-A35B-Instruct	262K						$0.40	$2
deepinfra/Qwen/Qwen3-Coder-480B-A35B-Instruct-Turbo	262K						$0.30	$1
deepinfra/zai-org/GLM-4.5	131K						$0.60	$2

Advanced Configuration

Custom Headers

const agent = new Agent({
  name: "custom-agent",
  model: {
    url: "https://api.deepinfra.com/v1/openai",
    id: "deepinfra/Qwen/Qwen3-Coder-480B-A35B-Instruct",
    apiKey: process.env.DEEPINFRA_API_KEY,
    headers: {
      "X-Custom-Header": "value"
    }
  }
});

Dynamic Model Selection

const agent = new Agent({
  name: "dynamic-agent",
  model: ({ runtimeContext }) => {
    const useAdvanced = runtimeContext.task === "complex";
    return useAdvanced
      ? "deepinfra/zai-org/GLM-4.5"
      : "deepinfra/Qwen/Qwen3-Coder-480B-A35B-Instruct";
  }
});

Direct Provider Installation

This provider can also be installed directly as a standalone package, which can be used instead of the Mastra model router string. View the package documentation for more details.

npm install @ai-sdk/deepinfra

For detailed provider-specific documentation, see the AI SDK Deep Infra provider docs.