Our recommendation: run GLM 5.2 on DGX B300
One DGX B300 runs every open model in this store, including the 744-billion-parameter GLM 5.2, with more than double the required memory left over. That headroom is not waste — it is more simultaneous users, longer documents, and the freedom to switch to whatever model tops the leaderboard next year without buying again.
The memory math behind it
GLM 5.2 has 744 billion parameters × 1 GB = 744 GB, + 20% working room = 892.8 GB needed — this build carries 2,304 GB.
The build
1× NVIDIA DGX B300
2,304 GB HBM3e each · $550,000 each
Eight Blackwell Ultra GPUs in one box. Runs anything open.
$550,000total price
2,304 GBcombined GPU memory
14,000 Wcombined power draw
14,000 W — as much power as about 12 average homes, and a day of running it drains about 3.7 full 90 kWh electric-car batteries.