GLM-5.1
Official · BF16 · safetensors
Runtime certified: Transformers
| Precision / quantization | Format | Bits | Publisher trust | Deployment state |
|---|---|---|---|---|
| BF16 | safetensors | 16 | Official | Runtime certified |
GLM · General · GLM-5.1
GLM-5.1: Specs, GPU requirements, hosting & deployment
GLM-5.1 is a previous General release in the GLM family, certified from its immutable official source revision.
Total parameters744.0B
Active parameters40.0B
Context window202,752 tokens
Release statusPrevious · Previous
ArchitectureGlmMoeDsaForCausalLM
ModalitiesText
Licensemit
Deployment stateDeployable with certified configuration
Commercial stateCommercial Use Allowed
Release date2026-04-03
Architecture, strengths and use cases
GLM-5.1 is an official self-hostable Z.ai release in the GLM General track. It uses GlmMoeDsaForCausalLM, carries 744B / 40B MoE, supports a verified context window of 202,752 tokens, and exposes only source-certified checkpoints and runtime combinations. Its release, license and deployment facts are tied to the official repository revision rather than inferred from the family name.
GLM-5.1 uses GlmMoeDsaForCausalLM with 744B / 40B MoE. The stored architecture profile records 78 layers, hidden width 6144, 64 attention heads and a 202,752 token context ceiling where the official configuration publishes those fields.
Verified GlmMoeDsaForCausalLM architecture
202,752 token certified context
Official BF16, FP8 checkpoint coverage
Private LLM inference
Agentic workflows
Long-context document processing
Certified checkpoints and quantizations
Only exact, source-certified variants attached to this release are shown.
GLM-5.1-FP8
Official · FP8 · safetensors
Runtime certified: Transformers
| Precision / quantization | Format | Bits | Publisher trust | Deployment state |
|---|---|---|---|---|
| FP8 | safetensors | 8 | Official | Runtime certified |
Recommended hardware
Use only the listed transformers runtime configuration with the exact checkpoint precision. The recommendation engine checks weight memory, KV cache, runtime overhead, safety headroom, GPU architecture and topology before ranking rentable and reference hardware.
Estimated weight memory1427.38 GB
KV cache9.75 GB
Runtime overhead315.32 GB
Total with safety margin2173.05 GB
Technically compatible reference sizing
No current FusionPointAI inventory passes every runtime, architecture, topology and memory gate for this exact checkpoint. Use the estimator for global compatible hardware.
License and self-hosting considerations
The full 744B resident weight set must fit across the selected GPUs. Context and concurrency add KV-cache memory; MoE active parameters do not replace resident-weight memory.
GLM-5.1 is published under mit. The release-scoped official license link and verification date are retained with the catalogue record.
Commercial Use Allowed. The official license permits commercial use; its obligations still apply.
Alternatives and sibling variants
GLM-5.3, GLM-5.2, GLM-5
Release timeline
zai/glm/glm-5-1 @ 78ba95751d128a92712bd58f69c1f450c2eee3fc4481b847ccabdad722d79de8
Frequently asked questions
How much VRAM does GLM-5.1 require?
The exact estimate depends on checkpoint precision, context and concurrency; the page recommendation uses the certified memory engine and compatible runtime configurations.
Which runtimes support GLM-5.1?
Certified upstream runtime evidence is available for transformers.
Can GLM-5.1 be used commercially?
The stored commercial classification is Commercial Use Allowed. Consult the official mit terms for the final obligations.
Official references
Last verified: 2026-09-03