We have seen multi model harnesses for cheaper & faster tasks What about for the hardest challenges? What about open source? Proud to share …

We have seen multi model harnesses for cheaper & faster tasks What about for the hardest challenges? What about open source? Proud to share the latest update our Zenith harness, taking models you can use today above Fable on tasks that take hours or days You don't need Fable for the most complex tasks, from training models for protein prediction to optimising compilers Our open source Zenith harness takes base models to the top of FrontierSWE via adaptive self improvement GLM 5.2 next 👀 https://ii.inc/blog/post/zenith

Source: Emad Mostaque (X) | 2026-06-29