Cloud-Removal Models

Model Overview

Model Name	Status	Base Price (EUR/km²)	Data Product	Resolution	Required Inputs
Stratus-2	available	€0.20	Level-2A	10 m	Sentinel-1, Sentinel-2, Landsat 8/9
Stratus-2 (No Snow)	available	€0.20	Level-2A	10 m	Sentinel-1, Sentinel-2, Landsat 8/9
Nimbus (Multispectral)	coming-soon	€0.10	TOA	10 m	Sentinel-1, Sentinel-2
Nimbus (NDVI)	coming-soon	€0.10	NDVI	10 m	Sentinel-1, Sentinel-2

Available Models

The following models are available for ordering, each with their strengths, limitations, and pricing.

Stratus-2

Stratus-2 is the original ClearSKY Vision cloud-removal model and the ‘Product’ winner of the CASSINI Challenges. It leverages data from Sentinel-1 (ascending and descending), Sentinel-2, and Landsat 8/9 to produce cloudless, multi-spectral Sentinel-2 imagery. Thanks to its advanced data cleaning capabilities, Stratus-2 excels during periods with haze, thin cirrus clouds, and cloud shadows, delivering clear and accurate images. Its SAR (Synthetic Aperture Radar) capabilities make it particularly powerful in northern countries, where high SAR revisit frequencies significantly enhance image timeliness and provide more up-to-date imagery.

Status: Available
Base Price: €0.20 / km²
Ordering Modes: Polygon, Minitile, Tile
Polygon price: €0.20 / km²
Minitile price: €0.10 / km² equivalent
Tile price: €0.04 / km² equivalent
Resolution: 10 m / pixel
Data Product: Level-2A
Required Input Satellites: Sentinel-1, Sentinel-2, Landsat 8/9
Optional Input Satellites: None
Available Data Products: B2 (Blue), B3 (Green), B4 (Red), B5 (Red edge 1), B6 (Red edge 2), B7 (Red edge 3), B8 (NIR), B8A (Narrow NIR), B11 (SWIR 1), B12 (SWIR 2)

Stratus-2 (No Snow)

Stratus-2 (No Snow) is a specialized variant of the Stratus-2 cloud-removal model, designed for users who require consistent, cloud-free imagery without seasonal snow cover. Built on the same core architecture as Stratus-2, it leverages Sentinel-1 (ascending and descending), Sentinel-2, and Landsat 8/9 data to produce high-quality, multi-spectral images while reconstructing a snow-free surface, even when input data indicates snow presence. This ensures reliable and consistent imagery over time, making it particularly useful in regions with sporadic or transient snow, where intermittent snow cover can introduce inconsistencies in time-series analysis. It is especially recommended for agricultural applications, where fine-scale features such as crop health and soil conditions require stable, uninterrupted monitoring.

Status: Available
Base Price: €0.20 / km²
Ordering Modes: Polygon, Minitile, Tile
Polygon price: €0.20 / km²
Minitile price: €0.10 / km² equivalent
Tile price: €0.04 / km² equivalent
Resolution: 10 m / pixel
Data Product: Level-2A
Required Input Satellites: Sentinel-1, Sentinel-2, Landsat 8/9
Optional Input Satellites: None
Available Data Products: B2 (Blue), B3 (Green), B4 (Red), B5 (Red edge 1), B6 (Red edge 2), B7 (Red edge 3), B8 (NIR), B8A (Narrow NIR), B11 (SWIR 1), B12 (SWIR 2)

Nimbus (Multispectral)

Nimbus represents the next generation in cloud removal technology and is currently in its final stages of testing. Engineered with modularity at its core, Nimbus integrates seamlessly with all available data sources on our platform, adapting to diverse input types for maximum versatility. By combining SAR and optical data, Nimbus achieves unprecedented accuracy in cloud removal, setting a new standard in the field. One of its most transformative advancements lies in how it processes SAR data compared to its predecessors, Stratus-2. With state-of-the-art SAR noise reduction algorithms, Nimbus extracts the maximum value from every image, even in challenging conditions.

Status: Coming soon
Base Price: €0.10 / km²
Ordering Modes: Polygon, Minitile, Tile
Polygon price: €0.10 / km²
Minitile price: €0.05 / km² equivalent
Tile price: €0.02 / km² equivalent
Resolution: 10 m / pixel
Data Product: TOA
Required Input Satellites: Sentinel-1, Sentinel-2
Optional Input Satellites: Landsat 8/9
Available Data Products: B1 (Coastal aerosol), B2 (Blue), B3 (Green), B4 (Red), B5 (Red edge 1), B6 (Red edge 2), B7 (Red edge 3), B8 (NIR), B8A (Narrow NIR), B9 (Water vapour), B10 (Cirrus), B11 (SWIR 1), B12 (SWIR 2)

Nimbus (NDVI)

Nimbus (NDVI) is an NDVI-only variant designed for users who only need vegetation index time series. Because the pipeline is optimized to output NDVI directly (rather than preserving full multispectral fidelity), it can deliver a more temporally stable NDVI signal with fewer short-term artifacts. It matches Nimbus ordering options, while delivering NDVI as the only output for simpler workflows and lighter downloads.

Status: Coming soon
Base Price: €0.10 / km²
Ordering Modes: Polygon, Minitile, Tile
Polygon price: €0.10 / km²
Minitile price: €0.05 / km² equivalent
Tile price: €0.02 / km² equivalent
Resolution: 10 m / pixel
Data Product: NDVI
Required Input Satellites: Sentinel-1, Sentinel-2
Optional Input Satellites: Landsat 8/9
Available Data Products: —

Ask API for Available Models

You can query our API to retrieve a list of available processing models, along with their supported SatelliteConstellations. Each model lists satellite constellations that it supports and indicates whether they are optional or required.

Endpoint: GET /api/tasking/models

{
  "Data": {
    "TaskingModels": [
      {
        "Model": "Stratus2",
        "SupportedSatelliteConstellations": [
          {
            "SatelliteConstellation": "Sentinel1",
            "Optional": false
          },
          {
            "SatelliteConstellation": "Sentinel2",
            "Optional": false
          },
          {
            "SatelliteConstellation": "Landsat89",
            "Optional": false
          }
        ]
      },
      {
        "Model": "Stratus2NoSnow",
        "SupportedSatelliteConstellations": [
          {
            "SatelliteConstellation": "Sentinel1",
            "Optional": false
          },
          {
            "SatelliteConstellation": "Sentinel2",
            "Optional": false
          },
          {
            "SatelliteConstellation": "Landsat89",
            "Optional": false
          }
        ]
      }
    ]
  },
  "Succeeded": true,
  "Error": null
}

Model Overview​

Available Models​