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Put the practical questions next to the science. These are existing editorial records, not a recommendation or a universal ranking. Check the original sources before making a decision.

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Model Book records. Different tests measure different things; scores are not a common ranking.
Decision lensAlphaFold3 ↗Google DeepMindBoltz-1 ↗MIT
CapabilitiesStructure Prediction · Complex Prediction · Ligand DockingStructure Prediction · Complex Prediction
Evidence

CASP15: 0.85 GDT-TS (avg) — Dominant across all categories

POSEBUSTERS: 77% valid — Best-in-class for ligand pose validity

DOCKQ: 0.73 DockQ — Protein-protein complex prediction

CASP15: 0.82 GDT-TS (avg) — Competitive with AF3 on single chains

DOCKQ: 0.68 DockQ — Complex prediction close to AF3

LicensingFree for academic use via API. Commercial use requires licensing from Google DeepMind. No weight distribution.MIT license. Fully open weights, code, and training pipeline.
DeploymentAPI-only — no local deployment possible

Free via AlphaFold Server (rate-limited), enterprise pricing undisclosed

1x A100 40GB for most predictions

Self-hosted only — ~$0.02/prediction on cloud GPU

TradeoffsProduction drug discovery pipelines requiring IP freedom; High-throughput screening where API rate limits are a bottleneck; Regulated workflows requiring on-premises deployment; Any application where you need to fine-tune or modify the modelWhen absolute peak accuracy on complexes matters more than accessibility; Ligand docking — use Boltz-2 or DiffDock instead
Sources & reviewAlphaFold3 Paper (Nature 2024) ↗AlphaFold Server ↗CASP15 Results ↗Record reviewed Boltz-1 GitHub ↗Record reviewed
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