Microsoft's MAI-Base-2 scaling law forecast 0.8034 lands within 0.0024 of actual loss

zsakib_ · x · 2026-10-17

A viral chart from Microsoft AI's MAI-Base-2 blog (with intermediate checkpoint losses found in the page source) shows their scaling ladder nailing the forecast: fitting L(C)=0.696+0.428·(C/10^20)^(-0.177) from L18–L42 runs, they extrapolated 132x in compute to 2.41×10^25 FLOPs and predicted a final eval loss of 0.8034 — the actual run finished at 0.8058, only +0.0024 off. The data mix is code 48%, math 15.8%, STEM 15.8%, and the blog notes plain least squares would underestimate α (0.158) versus their Huber fit.

Related event: Microsoft MAI-Base-2 Blog Source Code Leaks Scaling Checkpoint Data(3 posts)→

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