# ![Vivgrid logo](https://models.dev/logos/vivgrid.svg)Vivgrid Access 5 Vivgrid models through Mastra's model router. Authentication is handled automatically using the `VIVGRID_API_KEY` environment variable. Learn more in the [Vivgrid documentation](https://docs.vivgrid.com/models). ```bash VIVGRID_API_KEY=your-api-key ``` ```typescript import { Agent } from "@mastra/core/agent"; const agent = new Agent({ id: "my-agent", name: "My Agent", instructions: "You are a helpful assistant", model: "vivgrid/gemini-3-flash-preview" }); // 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 [Vivgrid documentation](https://docs.vivgrid.com/models) for details. ## Models | Model | Context | Tools | Reasoning | Image | Audio | Video | Input $/1M | Output $/1M | | -------------------------------- | ------- | ----- | --------- | ----- | ----- | ----- | ---------- | ----------- | | `vivgrid/gemini-3-flash-preview` | 1.0M | | | | | | $0.50 | $3 | | `vivgrid/gemini-3-pro-preview` | 1.0M | | | | | | $2 | $12 | | `vivgrid/gpt-5.1-codex` | 400K | | | | | | $1 | $10 | | `vivgrid/gpt-5.1-codex-max` | 400K | | | | | | $1 | $10 | | `vivgrid/gpt-5.2-codex` | 400K | | | | | | $2 | $14 | ## Advanced Configuration ### Custom Headers ```typescript const agent = new Agent({ id: "custom-agent", name: "custom-agent", model: { url: "https://api.vivgrid.com/v1", id: "vivgrid/gemini-3-flash-preview", apiKey: process.env.VIVGRID_API_KEY, headers: { "X-Custom-Header": "value" } } }); ``` ### Dynamic Model Selection ```typescript const agent = new Agent({ id: "dynamic-agent", name: "Dynamic Agent", model: ({ requestContext }) => { const useAdvanced = requestContext.task === "complex"; return useAdvanced ? "vivgrid/gpt-5.2-codex" : "vivgrid/gemini-3-flash-preview"; } }); ``` ## 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](https://www.npmjs.com/package/@ai-sdk/openai) for more details. **npm**: ```bash npm install @ai-sdk/openai ``` **pnpm**: ```bash pnpm add @ai-sdk/openai ``` **Yarn**: ```bash yarn add @ai-sdk/openai ``` **Bun**: ```bash bun add @ai-sdk/openai ```