Blackspire builds an open-source engine that designs and evaluates drug-like molecules — in your browser and at scale. Free, public, and reproducible. Focused on CNS and serotonin-receptor pharmacology now, and built to expand to new target classes.
Make serious molecular research accessible to anyone. The tools to design and evaluate new medicines have been locked behind cost and complexity. We're tearing that gate down — an engine that's free, open, and reproducible, so a student, an academic lab, or a small biotech can run real generative drug discovery.
Drug-like molecules aren't found by maximising one number. Blackspire searches chemical space the way medicinal chemists actually reason — balancing many objectives at once, steered by a bio-inspired explorer.
A Physarum polycephalum–inspired optimizer steers the search. Like slime mould reinforcing efficient routes and pruning dead ends, it concentrates effort on promising regions of chemical space instead of sampling blindly.
Binding affinity, receptor selectivity, ADMET, brain penetration, cardiac safety and synthetic accessibility are optimised together — never affinity alone. Candidates have to satisfy the whole profile, not win one axis.
The engine is seeded from validated, public bioactivity data and its predictors are checked with held-out scaffold-split validation — testing on chemotypes the model never saw, so reported skill reflects generalisation, not memorisation.
RDKit underpins featurisation and property calculation — the same library that powers the live readouts in the 3D viewer below. Standard, inspectable, reproducible foundations rather than a black box.
Why bio-inspired multi-objective search? Naive single-objective generators tend to exploit one reward and drift into molecules that score brilliantly on paper yet are unstable, toxic, or impossible to make. Real drug design is a negotiation between competing constraints. A bio-inspired explorer balances exploration with exploitation across all objectives at once, so the molecules it surfaces are credible starting points — not artefacts of an over-optimised metric.
We don't ask you to take performance on faith. The optimizer is evaluated against standard generation baselines under an equal compute budget, and is designed to excel specifically at multi-objective molecular design. The methodology is reproducible; the full benchmark is being finalised, so we report the setup rather than headline figures.
An established evolutionary baseline for molecular generation.
The honest floor — does the optimizer beat sampling at random?
Same budget, same objectives — built to win on multi-objective design.
Per-target activity models retrained on harmonised public bioactivity data, with held-out scaffold-split validation so accuracy reflects unseen chemotypes.
A working generative optimizer benchmarked against standard generation baselines under an equal compute budget.
Live, on-device 3D structure building and property computation — running right here on this page, nothing sent to a server.
An approach that is open and reproducible by design, so results can be inspected and rerun rather than simply claimed.
Pick a preset or paste any SMILES. A real 3D conformer is generated and relaxed in your browser, then its properties are computed live. Drag to rotate, scroll to zoom — everything runs on your device.
3D conformers are generated and MMFF94-relaxed with OpenChemLib; structures are rendered with 3Dmol.js; molecular properties (MW, LogP, TPSA, H-bond donors/acceptors, aromatic rings, Lipinski) are computed with RDKit. All client-side — nothing you enter leaves your device. Figures are illustrative of the profiling the Blackspire Engine performs at scale.
Rough direction, not promised dates — built in the open as we go.
Blackspire Molecular established in the United Kingdom.
Joined the NVIDIA Inception program.
The engine as downloadable, packaged software.
Accelerated generation and scoring.
Graph-neural-network property and activity scorers.
Expansion to additional target classes.
This is the future home of the downloadable Blackspire Engine — a packaged build you'll run locally to generate and score your own molecules. We're finalising the release; leave an email and we'll let you know the moment it's available.
Blackspire Molecular is a member of the NVIDIA Inception program, which supports startups building with accelerated computing. It helps us bring GPU-accelerated generation, scoring and cheminformatics to an engine we can give away for free.
Want to use the engine, contribute, collaborate on a target, or just ask a question? We read every message.