Mythos-class models will diffuse throughout the world by 2029

2026-06-12

Model performance has only improved over time. There's currently no reason it shouldn't continue to improve in the future. Open weight models are only a few months behind frontier models on benchmarks. If current trends continue, it is likely that a Claude Fable 5-level open model that can run on a device with 16 GB of RAM will be possible by early 2029.