curl --request POST \
  --url https://{host}/v2/workspaces/slug:llm-gateway/webhooks/v1/models \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "model_id": "<string>",
  "type": "completion"
}
'

{
  "model_id": "<string>",
  "type": "completion",
  "display": {
    "name": "<string>",
    "brand": "<string>",
    "hidden": true
  },
  "capabilities": {
    "vision": true,
    "audio": true,
    "text": true,
    "image": true
  },
  "limits": {},
  "failover": "<string>",
  "region": "<string>",
  "dimensions": "<unknown>",
  "supported_dimensions": [
    123
  ],
  "metrics": "<unknown>",
  "provider_config": {},
  "pricing": {
    "input_per_1m_tokens": 123,
    "output_per_1m_tokens": 123
  },
  "tags": [
    "<string>"
  ],
  "org_slugs": [
    "<string>"
  ],
  "enabled": true
}