IAEA releases World Fusion Outlook 2026, spanning AI, investment and supply chains

According to the IAEA's official publication page, this fourth edition runs to 128 pages and includes 100 figures. It surveys fusion plant concepts at different stages of development, alongside government and private investment, national programmes, industrial supply chains and international cooperation. ITER has also highlighted the publication as an overview of both scientific advances and the broader ecosystem needed to support commercial deployment.

The special focus is not simply on putting artificial intelligence into fusion research. It is on building the data foundations needed to make AI useful. Experiments, simulations and engineering projects generate enormous amounts of information, often across different institutions and machines. Can that information be made consistent and accessible enough for reliable comparison and learning? That groundwork may matter as much as the algorithms themselves.

A proposed fusion facility is not evidence that it has generated electricity. Nor does growing investment or a larger supply chain resolve difficult questions around plasma control, materials or tritium fuel. The more revealing question is what it will take to move from performing fusion experiments to building, supplying and operating power plants. The IAEA's latest outlook frames that question across both science and industry.