# Models

> Four Echelon model cards describe available model ids, supported input modalities, output types, pricing metadata, and runtime availability.

Source: https://fourechelon.com/docs/models · Machine-readable: https://fourechelon.com/openapi.json · Index: https://fourechelon.com/llms.txt

## GET /api/v1/models

```json
{
  "object": "list",
  "data": [
    {
      "id": "rowe-1.0",
      "object": "model",
      "display_name": "Rowe 1.0",
      "description": "Multimodal spatial reasoning model",
      "io": {
        "input_modalities": ["point_cloud_scene", "image", "sensor_readings"],
        "output_modalities": ["fit_result", "spatial_prediction"]
      }
    }
  ],
  "runtime_available": true,
  "runtime_status": "local_spatial_runtime"
}
```