Running GLM 5.2 on DGX Station

GLM 5.2 has 744 billion parameters. DGX Station offers 748 GB of HBM3e and LPDDR5X memory. This page puts the two side by side.

By QDNA · Published on 27 July 2026 · Updated on 15 September 2026

How much memory does GLM 5.2 need?

Weights take the parameter count multiplied by the format size, plus a 15% runtime margin for activations and buffers. In NVFP4 the calculation reads: 744 billion parameters × 0.5 byte (NVFP4) = 372.0 GB of weights; × 1.15 runtime margin = 427.8 GB. The attention cache sits on top: it grows with context length and with the number of concurrent requests, so it is sized case by case.

Model sheet: 744 billion parameters, 40 billion active per token, 1,048,576-token context, MIT licence. 744 billion announced by Z.AI; the repository holds 753 billion tensor elements in BF16 (1,507 GB).

GLM 5.2 activates 40 billion parameters per token out of 744 billion. Active parameters govern speed, not footprint: every expert stays resident in memory. Confusing the two under-sizes the machine by an order of magnitude.

What is left to serve requests?

GLM 5.2 fits on DGX Station only when quantised. In NVFP4, its weights take about 428 GB of 748 GB. More precise formats do not fit. The remaining margin decides how many concurrent requests and how much context the machine sustains. By QDNA convention a machine “fits” when the weights take at most 75% of its memory; beyond that it “barely fits” and forces a limit on context or on concurrency. The attention cache is not calculated on this page. These models’ architectures (compressed latent, linear or sparse attention, Mamba layers) share no per-token formula; it is measured on the machine, with the target context and concurrency [TO BE MEASURED].

DGX Station: indicative price €93,000 to €110,500 excl. VAT, not contractual. Source: Supermicro, MSI, Exxact, Gigabyte, HP and ASUS configurations listed by the reseller pi3g on 27 August 2026, excluding VAT and shipping. The machine targets the PME segment.

Where else can GLM 5.2 run?

• GLM 5.2 on Mac Studio Ultra
• GLM 5.2 on RTX PRO 6000 server
• GLM 5.2 on H200 SXM server
• GLM 5.2 on B200 SXM
• GLM 5.2 on B300 SXM

See the GLM 5.2 and DGX Station fact sheets.

Method and sources

Memory footprints are calculated, not measured: a reading on real hardware may differ depending on the engine and the exact weight format. Every figure below carries its source and the date of its last check.

• GLM 5.2: 744 billion parameters, 40 billion active, 1,048,576-token context, MIT licence. Hugging Face repository (config.json, API, model card), checked on 2 September 2026. 744 billion announced by Z.AI; the repository holds 753 billion tensor elements in BF16 (1,507 GB).
• DGX Station: 748 GB of memory; 252 GB HBM3e (7.1 TB/s) and 496 GB LPDDR5X (396 GB/s), 1,600 W, 20 PFLOPS FP4 with sparsity (15 dense). Manufacturer sheet checked on 2 September 2026.
• DGX Station price: €93,000 to €110,500 excl. VAT, indicative and not contractual. Source: Supermicro, MSI, Exxact, Gigabyte, HP and ASUS configurations listed by the reseller pi3g on 27 August 2026, excluding VAT and shipping.
• Bytes per parameter: FP16 2 (16 bits per parameter, hence 2 bytes); FP8 1 (8 bits per parameter (E4M3), hence 1 byte, block scales not counted); NVFP4 0.5 (4 bits per parameter, hence 0.5 byte; 4-bit published weights weigh 0.54 to 0.56 byte per parameter with their scales (DeepSeek V4 Pro 865 GB for 1,599 billion, Kimi K3 1,561 GB for 2,780 billion)); Q4 0.6 (taken here as llama.cpp Q4_K_M, 0.6 byte per parameter including scales; Q4_K_S weighs 0.56, AWQ and GPTQ 0.55). Source: connaissance/faits.yaml, quantifications family, checked on 2026-08-31.
• Runtime margin × 1.15: QDNA operating assumption, not measured: 15% above the weights for activations, buffers and fragmentation.
• “Fits” threshold at 75% of memory: QDNA assumption, not measured, which keeps the remaining quarter for the attention cache and concurrency.