Venice AI

Access 25 Venice AI models through Mastra's model router. Authentication is handled automatically using the VENICE_API_KEY environment variable.

Learn more in the Venice AI documentation.

VENICE_API_KEY=your-api-key

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

const agent = new Agent({
  id: "my-agent",
  name: "My Agent",
  instructions: "You are a helpful assistant",
  model: "venice/claude-opus-45"
});

// 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 Venice AI documentation for details.

:::

Models

<ProviderModelsTable models={[ { "model": "venice/claude-opus-45", "imageInput": true, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 202752, "maxOutput": 50688, "inputCost": 6, "outputCost": 30 }, { "model": "venice/claude-sonnet-45", "imageInput": true, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 202752, "maxOutput": 50688, "inputCost": 3.75, "outputCost": 18.75 }, { "model": "venice/deepseek-v3.2", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": false, "reasoning": true, "contextWindow": 163840, "maxOutput": 40960, "inputCost": 0.4, "outputCost": 1 }, { "model": "venice/gemini-3-flash-preview", "imageInput": true, "audioInput": true, "videoInput": true, "toolUsage": true, "reasoning": true, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 0.7, "outputCost": 3.75 }, { "model": "venice/gemini-3-pro-preview", "imageInput": true, "audioInput": true, "videoInput": true, "toolUsage": true, "reasoning": true, "contextWindow": 202752, "maxOutput": 50688, "inputCost": 2.5, "outputCost": 15 }, { "model": "venice/google-gemma-3-27b-it", "imageInput": true, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 202752, "maxOutput": 50688, "inputCost": 0.12, "outputCost": 0.2 }, { "model": "venice/grok-41-fast", "imageInput": true, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 0.5, "outputCost": 1.25 }, { "model": "venice/grok-code-fast-1", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 0.25, "outputCost": 1.87 }, { "model": "venice/hermes-3-llama-3.1-405b", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": false, "reasoning": false, "contextWindow": 131072, "maxOutput": 32768, "inputCost": 1.1, "outputCost": 3 }, { "model": "venice/kimi-k2-thinking", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 0.75, "outputCost": 3.2 }, { "model": "venice/llama-3.2-3b", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 131072, "maxOutput": 32768, "inputCost": 0.15, "outputCost": 0.6 }, { "model": "venice/llama-3.3-70b", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 131072, "maxOutput": 32768, "inputCost": 0.7, "outputCost": 2.8 }, { "model": "venice/minimax-m21", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 202752, "maxOutput": 50688, "inputCost": 0.4, "outputCost": 1.6 }, { "model": "venice/mistral-31-24b", "imageInput": true, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 131072, "maxOutput": 32768, "inputCost": 0.5, "outputCost": 2 }, { "model": "venice/openai-gpt-52", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 2.19, "outputCost": 17.5 }, { "model": "venice/openai-gpt-52-codex", "imageInput": true, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 2.19, "outputCost": 17.5 }, { "model": "venice/openai-gpt-oss-120b", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 131072, "maxOutput": 32768, "inputCost": 0.07, "outputCost": 0.3 }, { "model": "venice/qwen3-235b-a22b-instruct-2507", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 131072, "maxOutput": 32768, "inputCost": 0.15, "outputCost": 0.75 }, { "model": "venice/qwen3-235b-a22b-thinking-2507", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 131072, "maxOutput": 32768, "inputCost": 0.45, "outputCost": 3.5 }, { "model": "venice/qwen3-4b", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 32768, "maxOutput": 8192, "inputCost": 0.05, "outputCost": 0.15 }, { "model": "venice/qwen3-coder-480b-a35b-instruct", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 0.75, "outputCost": 3 }, { "model": "venice/qwen3-next-80b", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 0.35, "outputCost": 1.9 }, { "model": "venice/qwen3-vl-235b-a22b", "imageInput": true, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": false, "contextWindow": 262144, "maxOutput": 65536, "inputCost": 0.25, "outputCost": 1.5 }, { "model": "venice/venice-uncensored", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": false, "reasoning": false, "contextWindow": 32768, "maxOutput": 8192, "inputCost": 0.2, "outputCost": 0.9 }, { "model": "venice/zai-org-glm-4.7", "imageInput": false, "audioInput": false, "videoInput": false, "toolUsage": true, "reasoning": true, "contextWindow": 202752, "maxOutput": 50688, "inputCost": 0.55, "outputCost": 2.65 } ]} />

Advanced Configuration

Custom Headers

const agent = new Agent({
  id: "custom-agent",
  name: "custom-agent",
  model: {
    url: "https://api.venice.ai/api/v1",
    id: "venice/claude-opus-45",
    apiKey: process.env.VENICE_API_KEY,
    headers: {
      "X-Custom-Header": "value"
    }
  }
});

Dynamic Model Selection

const agent = new Agent({
  id: "dynamic-agent",
  name: "Dynamic Agent",
  model: ({ requestContext }) => {
    const useAdvanced = requestContext.task === "complex";
    return useAdvanced
      ? "venice/zai-org-glm-4.7"
      : "venice/claude-opus-45";
  }
});