Pauling is conversational comp chem on the cloud -- describe what you want and the platform runs it. No scripting, no workflow builders, pay-per-compute. Orion is cloud-native and technically strong (FRED, ROCS, EON), a step ahead of desktop tools -- but it's still a traditional enterprise platform with its own scripting language (Floe) and enterprise pricing.
| Category | Pauling | OpenEye / Cadence Orion |
|---|---|---|
| Cloud-native | Built on Google Cloud Dataflow from day one | Cloud-native on AWS -- one of the first cloud comp chem platforms |
| Interface | Conversational AI -- natural language | Floe visual workflow builder + Python scripting |
| Docking | UniDock (GPU-accelerated Vina) -- high throughput | FRED/HYBRID -- fast, well-validated, strong enrichment in benchmarks |
| Shape-based screening | Not available | ROCS -- industry-leading 3D shape/pharmacophore similarity |
| Electrostatic similarity | Not available | EON -- unique electrostatic comparison capability |
| Scaling | Auto-scales to hundreds of workers; 10M+ compound screens | Scales well on AWS via Orion Floe parallelization |
| Cost model | Pay-per-compute, no license fees | Enterprise licensing through Cadence; significant annual commitment |
| MD capabilities | GROMACS with auto parameterization (ACPYPE), checkpoint save/resume, MM-PBSA | Orion MD (OpenMM-based) -- more limited, less established than GROMACS |
| ADMET profiling | Integrated into conversational workflow | Available via Floe cubes but requires workflow assembly |
| Learning curve | Low -- no scripting, no workflow design | Moderate -- Floe SDK, Python Toolkit, cube development |
| File format handling | Automatic conversion (PDB, SDF, MOL2, SMILES, CIF, PDBQT) | OEChem handles formats; Floe workflows need explicit I/O configuration |
| Pocket detection | P2Rank (ML-based, automatic) | OEDocking includes site detection but less automated |