Ambient

Access 17 Ambient models through Mastra's model router. Authentication is handled automatically using the AMBIENT_API_KEY environment variable.

Learn more in the Ambient documentation.

.env

AMBIENT_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: "ambient/ambient/large"
});

// 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);
}

备注

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

Models

17 available models

Model	Context	Tools	Reasoning	Image	Audio	Video	Input $/1M	Output $/1M
ambient/ambient/large	203K						$0.60	$2
ambient/ambient/small	101K						$0.00	$0.00
ambient/deepseek/deepseek-v4-flash	1.0M						$0.14	$0.28
ambient/deepseek/deepseek-v4-flash-0731	1.0M						$0.08	$0.18
ambient/minimax/minimax-m3	262K						$0.23	$0.96
ambient/moonshotai/kimi-k2.6	262K						$0.95	$4
ambient/moonshotai/kimi-k2.7-code	262K						$0.69	$3
ambient/qwen/qwen3-30b-a3b-instruct-2507	131K						$0.09	$0.30
ambient/qwen/qwen3.6-27b	33K						$0.32	$3
ambient/qwen/qwen3.6-35b-a3b	262K						$0.15	$1
ambient/qwen/qwen3.8-27b	33K						$0.32	$3
ambient/stepfun/step-3.7-flash	262K						$0.19	$1
ambient/unsloth/qwen3.8-27b-gguf	101K						$0.00	$0.00
ambient/xiaomi/mimo-v2.5	1.0M						$0.40	$2
ambient/z-ai/glm-5.2	203K						$0.60	$2
ambient/zai-org/GLM-5.1-FP8	203K						$1	$4
ambient/zai-org/GLM-5.2-FP8	203K						$1	$4

Model availability, capabilities, context windows, and pricing are sourced from models.dev and may change.

Advanced configuration

Custom headers

src/mastra/agents/my-agent.ts

const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://api.ambient.xyz/v1",
    id: "ambient/ambient/large",
    apiKey: process.env.AMBIENT_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
      ? "ambient/zai-org/GLM-5.2-FP8"
      : "ambient/ambient/large";
  }
});