Doubao - CowAgent

Doubao (Volcengine Ark) supports text chat, image understanding, image generation (Seedream), and embedding. A single ark_api_key enables all capabilities.

All capabilities below can be configured in one place via the “Model Management” page in the Web Console, with no need to manually edit the configuration file.

Text Chat

{
  "model": "doubao-seed-2-1-pro-260628",
  "ark_api_key": "YOUR_API_KEY"
}

Parameter	Description
`model`	Can be `doubao-seed-2-1-pro-260628`, `doubao-seed-2-1-turbo-260628`, `doubao-seed-2-0-pro-260215`, `doubao-seed-2-0-code-preview-260215`, etc.
`ark_api_key`	Create one in the Volcengine Ark Console
`ark_base_url`	Optional, defaults to `https://ark.cn-beijing.volces.com/api/v3`

Image Understanding

Once ark_api_key is configured and the main model is a Doubao model, the Agent’s Vision tool automatically uses the current main model to recognize images, with no extra setup required. To manually specify a Vision model:

{
  "tools": {
    "vision": {
      "model": "doubao-seed-2-1-pro-260628"
    }
  }
}

Image Generation

{
  "skills": {
    "image-generation": {
      "model": "seedream-5.0-lite"
    }
  }
}

Available models: seedream-5.0-lite, seedream-4.5.

Embedding

{
  "embedding_provider": "doubao",
  "embedding_model": "doubao-embedding-vision-251215"
}

The default model is doubao-embedding-vision-251215 (multimodal embedding); the dimension (1024 or 2048) can be set via embedding_dimensions in the configuration file. After changing the embedding, run /memory rebuild-index to rebuild the index.