Zeus
Owned by
Zeus is developed by Ørpheus AI B.V., a Netherlands-registered company in partnership with BitMind. The team combines hands-on Bittensor experience with deep domain expertise from leading academic institutions. Co-founded by Wouter Haringhuizen (Machine Learning Engineer), the team is focused on building practical decentralized solutions for real-world climate science challenges.
What is Zeus?
Zeus is a decentralized AI-powered environmental forecasting platform built on the Bittensor network as Subnet 18. Developed by Ørpheus AI, it leverages advanced machine learning models to predict environmental variables using real-time global data from the ERA5 reanalysis dataset, the largest global environmental dataset to date, maintained by the European Union's Copernicus Earth observation programme. The dataset contains hourly measurements from 1940 to the present across hundreds of variables.
Traditional environmental forecasting relies on physics-based numerical weather prediction (NWP), which is accurate but extremely cost-intensive and time-consuming. Subnet 18 incentivizes the development of data-driven AI alternatives that can deliver forecasts that are faster, cheaper, and more accurate, at a fraction of the carbon emissions. Through continuous competition among miners, Zeus evolves its forecasting capabilities over time, tackling increasingly difficult environmental prediction challenges.
How Zeus works?
Zeus operates through a challenge-and-response cycle coordinated across the Bittensor network. As Subnet 18, validators issue forecasting challenges targeting specific geographic coordinates, time windows, and environmental variables (currently focused on 2-meter surface temperature, T2m). Miners respond with hourly forecasts generated by their AI models, covering forecast windows from 1 to 24 hours ahead at 0.25° latitude/longitude resolution.
Validators evaluate miner predictions against ground truth data streamed in real-time from the ERA5 dataset. Scoring uses a weighted RMSE (Root Mean Squared Error) metric adjusted for regional difficulty, ensuring that miners are rewarded fairly regardless of whether they forecast for stable or highly variable locations. The system also employs a Best Recent Performer (BRP) mechanism that dynamically selects the miner with the lowest error rate over the past 24 hours to serve production forecasts. All operations, including model updates and reward allocations, are recorded on Bittensor's blockchain for full transparency.
Frequently asked questions
What is it?
Zeus (SN18) is a decentralized environmental forecasting subnet within the Bittensor network. It uses AI models to predict weather and climate variables using the ERA5 global dataset, providing faster and more cost-efficient forecasts than traditional physics-based prediction systems.
How does it work?
Zeus (SN18) coordinates miners who run AI forecasting models to predict environmental variables at specific locations and timestamps. Validators challenge miners with real-world forecasting tasks, compare predictions against ERA5 ground truth data, and score results using difficulty-adjusted RMSE. The best-performing models earn higher Bittensor rewards and are dynamically selected to serve production-grade forecasts.
What is the main strength?
The main strength of Zeus (SN18) is its access to the ERA5 dataset, one of the world's largest and most comprehensive climate datasets, combined with a difficulty-adjusted scoring system that ensures fair competition across all geographic regions. The subnet has demonstrated 40%+ accuracy gains over traditional models in 2-meter temperature forecasting and delivers forecasts at a fraction of the cost and energy of conventional NWP systems.
What differentiates it?
Zeus (SN18) differentiates itself as the first weather data provider in the Bittensor ecosystem, with real-world applications already extending to commodity trading through the Hermes signal agent. The subnet's BRP mechanism ensures production users always receive forecasts from the best-performing model in real-time, and its partnership with NBX (a Norwegian regulated exchange) provides direct institutional access to Zeus tokens via an OTC desk. All forecasts and rewards are transparently recorded on-chain.
How to buy?
Zeus (SN18) tokens can be purchased on the SimplyTao platform where you have multiple payment methods, including Credit/Debit cards, Revolut, Google Pay, Apple Pay, Crypto, and TAO. Try it now here.