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MatterGen

Microsoft
open source / Overall score: 2.7

MatterGen is Microsoft's diffusion model for generating inorganic crystal structures across the periodic table. It ships an unconditional base model and property-conditioned adaptations, along with training data, preprocessing code, a full training pipeline, and evaluation tooling for novelty and predicted stability.

Openness

5 high confidence
5.0
weights
open(MIT ungated base and property-conditioned checkpoints)
data
open(MP-20 and Alex-MP-20 training releases with preprocessing instructions)
code
open(full preprocessing, training, fine-tuning, generation, and evaluation pipeline)
license
MIT(OSI)

MatterGen publishes the weights, training datasets, and end-to-end code required to train and adapt the model, making it a fully open-source release.

Adoption

2 medium confidence
2.0

The Hub reports zero downloads, so GitHub stars are used as the fallback reach signal instead.

Capability

3 high confidence
3.0

MatterGen documents two readable capabilities, fine-tuning on arbitrary property data and unconditional or property-conditioned crystal generation, one fewer than Prithvi-EO documents. Its unusually complete open pipeline is a fact about openness, not capability.

Verified 2026-09-10