Image input - Nito

The model must support image inputs; find them with GET /v1/models?supports=image_inputs.

The `image_url` Part

{
  "role": "user",
  "content": [
    { "type": "text", "text": "What is in this image?" },
    {
      "type": "image_url",
      "image_url": {
        "url": "https://example.org/photo.jpg",
        "detail": "auto"
      }
    }
  ]
}

Field	Type	Required	Notes
`type`	string	yes	`"image_url"`.
`image_url.url`	string	yes	A `https://` URL or a `data:` URL.
`image_url.media_type`	string	no	Used when supplying raw base64; the gateway assembles `media_type` + base64 into a data URL.
`image_url.detail`	string	no	Optional detail hint passed through to the provider.

Supply the bytes as an https:// URL, a full data: URL, or raw base64 plus media_type. file_id is not supported; there is no Files API.

Example

curl "https://app.trynito.ai/v1/chat/completions" \
  -H "Authorization: Bearer z_sk_your_key_here" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen3.8-27b",
    "messages": [
      {
        "role": "user",
        "content": [
          { "type": "text", "text": "Describe this picture." },
          { "type": "image_url", "image_url": { "url": "https://example.org/photo.jpg" } }
        ]
      }
    ]
  }'

Multipart Limits

Chat completions also accept multipart/form-data: a request JSON part plus image files referenced as attachment://<id>.

Limit	Value
Accepted formats	PNG, JPEG, WebP only
Max images per request	10
Max size per image	5 MiB
Max combined size	50 MiB
Max long edge	2048 px

URL Rules

Image URLs must use https, carry no credentials, and not resolve to a private or loopback host. Violations return 400. Audio and video inputs are rejected.