Larry Dial(@classiclarryd):43 days ago Marin kicked off the largest live-streamed pretraining run in history: a 535B MoE trained on 18T tokens. A scaling ladder was used to forecast eval loss along the entire trajectory, and the forecast was publicly pre-registered. Its halfway along, and despite being a 300x extrapolation, the run is within 0.3% of the forecast. The run was originally planned to be 360B parameters. Until @ravwojdyla found a hardware implementation with custom kernels to grow to 535B parameters while also speeding up tokens per second. Learn about how he did it on the Open Athena blog:

2026.10.01 22:56

43 days ago Marin kicked off the largest live-streamed pretraining run in history: a 535B MoE trained on 18T tokens. A scaling ladder was used to forecast eval loss along the entire trajectory, and the forecast was publicly pre-registered. Its halfway along, and despite being a 300x extrapolation, the run is within 0.3% of the forecast. The run was originally planned to be 360B parameters. Until @ravwojdyla found a hardware implementation with custom kernels to grow to 535B parameters while also speeding up tokens per second. Learn about how he did it on the Open Athena blog: