Access, Pricing, and Credits

Free-tier access, how credits are consumed per workflow, and typical cost estimates.

Access and pricing model

Rowan uses a credit-based usage model. All users, including free-tier users, can create API keys and use the Python API.

Free-tier access

• Access to all Rowan core workflows
• 20 credits per week
• 500 signup credits

Pricing and credit consumption

Credits are consumed according to compute type:

• CPU: 1 credit per minute
• GPU: 3 credits per minute
• H100/H200 GPU: 7 credits per minute

Purchased credits are priced per credit and remain valid for up to one year from purchase.

Typical cost estimates

Workflow	Typical Runtime	Estimated Credits	Notes
Descriptors	<1 min	0.5–2	Lightweight, good for triage
pKa (single transition)	2–5 min	2–5	Depends on molecule size
MacropKa (pH 0–14)	5–15 min	5–15	Broader sampling, higher cost
Conformer search	3–10 min	3–10	Ensemble quality matters
Tautomer search	2–5 min	2–5	Heterocyclic systems
Docking (single ligand)	5–20 min	5–20	Depends on pocket size, refinement
Analogue docking series (10–50 ligands)	30–120 min	30–100+	Shared reference frame
MSA generation	5–30 min	5–30	Sequence length dependent
Protein-ligand cofolding	15–60 min	20–50+	AI structure prediction, GPU-heavy