Vultr

Access 9 Vultr models through Mastra's model router. Authentication is handled automatically using the VULTR_API_KEY environment variable.

Learn more in the Vultr documentation.

.env

VULTR_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: "vultr/DeepSeek-R1-Distill-Llama-70B"
});

// 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 Vultr documentation for details.

Models

9 available models

Model	Context	Tools	Reasoning	Image	Audio	Video	Input $/1M	Output $/1M
vultr/DeepSeek-R1-Distill-Llama-70B	130K						$2	$2
vultr/DeepSeek-R1-Distill-Qwen-32B	130K						$0.30	$0.30
vultr/DeepSeek-V3.2	163K						$0.55	$2
vultr/GLM-5-FP8	202K						$0.85	$3
vultr/gpt-oss-120b	130K						$0.15	$0.60
vultr/Kimi-K2.5	261K						$0.55	$3
vultr/Llama-3_1-Nemotron-Ultra-253B-v1	32K						$0.55	$2
vultr/MiniMax-M2.5	196K						$0.30	$1
vultr/NVIDIA-Nemotron-3-Super-120B-A12B-NVFP4	260K						$0.20	$0.80

Advanced configuration

Custom headers

src/mastra/agents/my-agent.ts

const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://api.vultrinference.com/v1",
    id: "vultr/DeepSeek-R1-Distill-Llama-70B",
    apiKey: process.env.VULTR_API_KEY,
    headers: {
      "X-Custom-Header": "value"
    }
  }
});

Dynamic model selection

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
      ? "vultr/gpt-oss-120b"
      : "vultr/DeepSeek-R1-Distill-Llama-70B";
  }
});