Cogitan

Cogitan builds applied AI for engineering and scientific domains where the physics is hard, the data is expensive, and the cost of being wrong is high. Our first product, Fluxus, is a neural physics surrogate for superconducting RSFQ circuit verification. Where traditional SPICE simulation takes 4–6 minutes per cell, Fluxus predicts propagation delay, peak current, and design rule violations — with calibrated 1σ confidence bounds — in milliseconds. 200–500× faster at chip scale. 100% functional classification accuracy on validated cell types. Fluxus is calibrated to the MIT-LL SFQ5ee+ process node and expanding to additional PDKs. We work with defense contractors, national laboratories, and quantum hardware companies running active RSFQ programs. Cogitan is not a research lab. We ship products that work in production environments, replace bottlenecks that cost real engineering time, and expand into new physics-constrained domains as each model is validated. RSFQ circuit verification is the first application. It won't be the last.