Zenithon AI

Join us for drinks in Pittsburgh ,during American Vacuum Society, @AVS72: The Future of Temperature Sensing , for an informal evening with team Zenithon and others working across AI, simulation and future of plasma processing.

Register here: luma.com/igol9my7

Join us for drinks in Chicago, during @APSphysics , for an informal evening with team Zenithon and others working across AI, plasma physics, fusion energy and semiconductor manufacturing.

Register here:
luma.com/rfbczllg

#apsdpp2026 #gec2026 #AI #Semiconductors

A very interesting analysis of our latest model ''NOVA''

We’ve built ModeCast to predict linear instabilities in tokamaks: which modes grow, where they develop and how fast. It’s the first ML model to bring these predictions together across instability families, delivering a complete stability assessment up to 1,000,000× faster than our reference simulations.

Fusion could provide abundant, low-carbon energy, but plasma instability is one of the biggest challenges for tokamaks: it can degrade confinement and rule out promising reactor designs. Cutting stability checks from hours to milliseconds could let engineers explore millions of plasma configurations and pursue more ambitious designs.

We’re especially excited by the physics in these predictions: ModeCast reproduces magnetic islands and locates resonant layers. With just four new simulations per instability branch, it adapted its growth-rate predictions to a plasma outside the original training distribution. On unseen cases, it recovered the reference response to changing resistivity, with particularly close agreement for the tearing mode.

The paper covers linear instabilities in the tokamak core and has been accepted at the Sim2Science workshop at NeurIPS 2026 in Paris. Credit to the team behind this work: @alexhigg_ , Zara Ercan, Abetharan Antony, Ph.D, Guzman Sanchez Gonzalez, Rafael Grazzini Placucci, Armand Kassaï Koupaïï and Artur Toshev.

The full blog post, interactive figures and paper are linked in the comments. ModeCast is one part of our work in fusion at Zenithon. We’ll have much more to share very soon.

#FusionEnergy #AIforScience #PlasmaPhysics #NeurIPS2026

Introducing NOVA by Zenithon, the first world model for extreme physics.
NOVA predicts how complex physical systems evolve and respond to control inputs, in seconds on a single GPU.

Built on a single transformer architecture, it is pretrained on diverse physical systems spanning plasma physics, fluid dynamics and more, using data from multiple simulation codes.

Our first showcase is a problem close to our hearts: fusion energy. We demonstrate NOVA across magnetic, magneto-inertial and inertial fusion, adapting to new operating regimes with a few dozen simulations, or none in our tokamak example.

For engineers, that means faster design exploration and experiment planning, with more possibilities tested before committing to hardware.

Explore the technology and results: lnkd.in/e5mfnnKR

We’re just getting started.