The most accurate weather forecasting model on the planet.

Jua builds EPT-2, the AI weather model that outperforms ECMWF, Google DeepMind and Microsoft, and Athena, the agent that turns it into trading decisions. In production at utilities, energy traders and hedge funds.

Powering 100+ GW for utilities, energy traders and hedge funds
MFT
TotalEnergies
Shell
Enel
Statkraft
RWE
EDF
Hydro-Québec
Adani Energy
Vitol
Origin Energy
ESB
Forecast skill

State of the art. Ahead of ECMWF, Google DeepMind, Microsoft and NVIDIA.

Verified against more than 10,000 ground stations with no post-processing, EPT-2 beats ECMWF HRES on 10 m and 100 m wind, 2 m temperature and solar radiation across the full 0–240 hour range. Its ensemble, EPT-2e, beats the 50-member ECMWF ENS mean at virtually every lead time. Our research is peer-reviewed at ICLR and NeurIPS.

Atmospheric prediction · aggregate skill
EPT-2Jua
100
GenCastGoogle DeepMind
84
AuroraMicrosoft
79
FourCastNet 3NVIDIA
73
IFSECMWF
68
Aggregate skill across RMSE, ACC, and CRPS on a held-out 2024 test set, normalized to EPT-2 = 100. Illustrative. Full tables in the EPT-2 technical report.
What Jua builds

Weather models, and an agent that acts on them.

01 · Weather models
EPT-2

A family of AI weather models, global and hourly.

Deterministic, ensemble, rapid-refresh and high-resolution models. Refreshed up to 24 times a day, with ensembles out to 60 days and power forecasts in MW for wind and solar.

Model documentation ↗
02 · Agent
Athena

The AI agent for energy markets.

Athena reads EPT-2, the market's own models, prices and your positions, then tells you what is about to move. Briefings, alerts, backtests and power forecasts in one workspace.

Athena for energy trading →
Who it's for

Built for the markets that move with the weather.

The same models serve the trading desk, the control room and the fund.

Energy traders

See the move before the market prices it.

Athena watches your positions and every weather and market model, and flags what is about to shift on your spreads. EPT-2 Early lands ahead of the forecasts other desks are waiting for.

Athena for energy trading →
Utilities and renewables

Forecast the assets you run, in MW.

Wind and solar forecasts turned into power output for your fleet, with actuals nowcasts, 5 km models over Europe, and alerts when the forecast shifts.

Talk to us →
Hedge funds

Weather as a tradeable signal.

Deterministic and ensemble forecasts through an API and Python SDK, with decades of history to backtest against and probabilistic forecasts out to 60 days.

Talk to us →
Where this goes

Weather is where we started. Not where we stop.

EPT-2 learned the physics of the atmosphere from data. The same base model, lightly fine-tuned, has already handled airfoils and shock waves. We are building a foundation model for the physical world, starting with the markets that need it most.

Put the most accurate forecast on your desk.

See EPT-2 and Athena on your own assets, markets and positions. In production at utilities, energy traders and hedge funds worldwide.