Alpha-v2.4.4-mini is the capacity-compressed counterpart of the v2.4.4 canonical baseline (no CSC). It plays the role of a controlled baseline in the 2×2 experimental matrix that also contains v2.4.4 (full), v2.4.18 (full + CSC), and v2.4.18-mini (mini + CSC).
The compression principle is identical to v2.4.18-mini — only feature-space dimensions shrink; architectural primitives (depths, mixer layers, distributional granularity, planner topology) are preserved. This makes the four cells of the matrix differ along exactly two axes — capacity and CSC — and nothing else.