Rankings of open-source AI models for climate

Discover the most influential and efficient open-source AI models designed to tackle climate change. This selection highlights tools driving sustainability, environmental monitoring, and weather forecasting. Explore low-carbon machine learning solutions and green AI applications that are transforming climate action. Ideal for developers, researchers, and businesses seeking to implement responsible AI technology for a more sustainable future.

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  1. 1

    Earth-2 Medium Range (Atlas) (January 2026)

    0 Global Votes
    • Provides 15-day global forecasts

      (+4)

    This model provides high-accuracy medium-range weather predictions, outperforming leading open models and offering significant speed advantages. Its Atlas architecture covers over 70 weather variables up to 15 days in advance.

  2. 2

    Earth-2 Nowcasting (StormScope) (January 2026)

    0 Global Votes
    • Uses generative AI for cloud evolution prediction

      (+4)

    Utilizing generative AI, this model predicts the evolution of cloud and rainfall systems with kilometer-resolution forecasts. It's the first AI model to outperform traditional physics-based models for short-term precipitation forecasting.

  3. 3

    Earth-2 CorrDiff (January 2026)

    0 Global Votes
    • Enables AI-driven downscaling of climate projections

      (+4)

    This model uses generative AI to downscale coarse-resolution continental predictions to high-resolution regional weather fields. It provides fine-grain resolution up to 500 times faster than traditional methods.

  4. 4

    Earth-2 Global Data Assimilation (HealDA) (January 2026)

    0 Global Votes
    • Produces initial conditions for weather prediction

      (+1)

    Powered by the HealDA architecture, this model produces initial conditions for weather prediction in seconds on GPUs. It significantly reduces the computational burden of preprocessing raw observational data.

  5. 5

    Earth-2 FourCastNet3 (January 2026)

    0 Global Votes
    • Accelerates AI-based global weather forecasting

      (+4)

    This model delivers high forecasting accuracy for various weather variables, surpassing leading conventional ensemble models. It produces forecasts up to 60 times faster than traditional methods.

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  7. 6

    Google DeepMind GraphCast (November 2023)

    0 Global Votes
    • Predicts hundreds of weather variables globally

      (+4)

    This established open-source model generates 10-day forecasts at 28-kilometer resolution, outperforming traditional HRES on 90% of test variables. It offers broader hardware compatibility, running on any hardware.

  8. 7

    Ai2 Climate Emulator (ACE) (April 2026)

    0 Global Votes
    • Fast machine learning model for climate simulation

      (+4)

    This open-source emulator, built on NVIDIA's SFNO architecture, emulates daily weather variability and climate at 100 km resolution. It runs approximately 1600 years/day on a single GPU, making it 100 times faster than comparable physics-based models.

  9. 8

    AI4DROUGHT Project's Transformer-based Neural Network Framework (March 2026)

    0 Global Votes
    • Learns directly from data

      (+4)

    This new framework for seasonal climate predictions learns directly from data, combining observational records with climate simulations. It uses transformer-based neural networks and variational inference to provide probabilistic predictions.