Model Versions

Model versions

Canopi’s models follow the Mycelium Series — a versioning system named for the lifecycle stages of the organism that holds forests together.

The Mycelium Series

Like mycelium, each model generation grows deeper, wider, and more connected to the data beneath it.

Spore — Genesis. The first model. Proof that the approach works.

Mycel — The network forming. Expanded species coverage, refined feature engineering, validated against historical outcomes. This is the current generation.

Hypha — Full reach. National coverage across all FIA regions. Additional data sources. Longer time horizons.

Rhizo — Deep roots. Multi-source validation, continuously learning from partner outcome data, real-time climate integration.

Current model

Mycel v0.2 (pnw_v0_2_mycel)

• Architecture: XGBoost (gradient-boosted decision trees)
• Training data: USFS Forest Inventory and Analysis (FIA) permanent plot observations
• Feature sources: FIA tree measurements + SSURGO soil properties + PRISM climate normals + SRTM elevation
• Features: 17 input variables covering soil, climate, terrain, tree condition, and planting method
• Coverage: Oregon and Washington (Pacific Northwest)
• Species: 20 tree species (16 conifers, 4 hardwoods)
• Horizons: 1, 3, and 5 years
• Methods: Manual planting and drone seeding
• Predictions: 2,156,880 pre-computed site-species-method-horizon combinations
• Explainability: Full SHAP values for every prediction

Version in API responses

Every prediction response includes a model object identifying which model generated it:

{
  "model": {
    "version": "pnw_v0_2_mycel",
    "codename": "mycel",
    "series": "Mycelium"
  }
}

When new model versions are released, the version string will change. Previous model versions remain documented in the Changelog so you can track how predictions evolve across generations.