Instructions to use zai-org/GLM-4.5 with libraries, inference providers, notebooks, and local apps. Follow these links to get started.

Libraries

How to use zai-org/GLM-4.5 with Transformers:

# Use a pipeline as a high-level helper
from transformers import pipeline

pipe = pipeline("text-generation", model="zai-org/GLM-4.5")
messages = [
    {"role": "user", "content": "Who are you?"},
]
pipe(messages)

# Load model directly
from transformers import AutoTokenizer, AutoModelForCausalLM

tokenizer = AutoTokenizer.from_pretrained("zai-org/GLM-4.5")
model = AutoModelForCausalLM.from_pretrained("zai-org/GLM-4.5")
messages = [
    {"role": "user", "content": "Who are you?"},
]
inputs = tokenizer.apply_chat_template(
	messages,
	add_generation_prompt=True,
	tokenize=True,
	return_dict=True,
	return_tensors="pt",
).to(model.device)

outputs = model.generate(**inputs, max_new_tokens=40)
print(tokenizer.decode(outputs[0][inputs["input_ids"].shape[-1]:]))

Inference
HuggingChat
Notebooks
Google Colab
Kaggle
Local Apps

vLLM

How to use zai-org/GLM-4.5 with vLLM:

Install from pip and serve model

# Install vLLM from pip:
pip install vllm
# Start the vLLM server:
vllm serve "zai-org/GLM-4.5"
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:8000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "zai-org/GLM-4.5",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker

docker model run hf.co/zai-org/GLM-4.5

SGLang

How to use zai-org/GLM-4.5 with SGLang:

Install from pip and serve model

# Install SGLang from pip:
pip install sglang
# Start the SGLang server:
python3 -m sglang.launch_server \
    --model-path "zai-org/GLM-4.5" \
    --host 0.0.0.0 \
    --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "zai-org/GLM-4.5",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Use Docker images

docker run --gpus all \
    --shm-size 32g \
    -p 30000:30000 \
    -v ~/.cache/huggingface:/root/.cache/huggingface \
    --env "HF_TOKEN=<secret>" \
    --ipc=host \
    lmsysorg/sglang:latest \
    python3 -m sglang.launch_server \
        --model-path "zai-org/GLM-4.5" \
        --host 0.0.0.0 \
        --port 30000
# Call the server using curl (OpenAI-compatible API):
curl -X POST "http://localhost:30000/v1/chat/completions" \
	-H "Content-Type: application/json" \
	--data '{
		"model": "zai-org/GLM-4.5",
		"messages": [
			{
				"role": "user",
				"content": "What is the capital of France?"
			}
		]
	}'

Docker Model Runner
How to use zai-org/GLM-4.5 with Docker Model Runner:
```
docker model run hf.co/zai-org/GLM-4.5
```

Unused tensors

#25

by ttkciar - opened Oct 1, 2025

Discussion

ttkciar

Oct 1, 2025

Loading the GGUF of this model in llama.cpp, I get the following warnings about unused tensors:

load_tensors: loading model tensors, this can take a while... (mmap = true)
model has unused tensor blk.92.attn_norm.weight (size = 20480 bytes) -- ignoring
model has unused tensor blk.92.attn_q.weight (size = 35389440 bytes) -- ignoring
model has unused tensor blk.92.attn_k.weight (size = 5570560 bytes) -- ignoring
model has unused tensor blk.92.attn_v.weight (size = 4300800 bytes) -- ignoring
model has unused tensor blk.92.attn_q.bias (size = 49152 bytes) -- ignoring
model has unused tensor blk.92.attn_k.bias (size = 4096 bytes) -- ignoring
model has unused tensor blk.92.attn_v.bias (size = 4096 bytes) -- ignoring
model has unused tensor blk.92.attn_output.weight (size = 43253760 bytes) -- ignoring
model has unused tensor blk.92.attn_q_norm.weight (size = 512 bytes) -- ignoring
model has unused tensor blk.92.attn_k_norm.weight (size = 512 bytes) -- ignoring
model has unused tensor blk.92.post_attention_norm.weight (size = 20480 bytes) -- ignoring
model has unused tensor blk.92.ffn_gate_inp.weight (size = 3276800 bytes) -- ignoring
model has unused tensor blk.92.exp_probs_b.bias (size = 640 bytes) -- ignoring
model has unused tensor blk.92.ffn_gate_exps.weight (size = 707788800 bytes) -- ignoring
model has unused tensor blk.92.ffn_down_exps.weight (size = 1032192000 bytes) -- ignoring
model has unused tensor blk.92.ffn_up_exps.weight (size = 707788800 bytes) -- ignoring
model has unused tensor blk.92.ffn_gate_shexp.weight (size = 8355840 bytes) -- ignoring
model has unused tensor blk.92.ffn_down_shexp.weight (size = 8355840 bytes) -- ignoring
model has unused tensor blk.92.ffn_up_shexp.weight (size = 8355840 bytes) -- ignoring
model has unused tensor blk.92.nextn.eh_proj.weight (size = 29491200 bytes) -- ignoring
model has unused tensor blk.92.nextn.embed_tokens.weight (size = 436469760 bytes) -- ignoring
model has unused tensor blk.92.nextn.enorm.weight (size = 20480 bytes) -- ignoring
model has unused tensor blk.92.nextn.hnorm.weight (size = 20480 bytes) -- ignoring
model has unused tensor blk.92.nextn.shared_head_head.weight (size = 436469760 bytes) -- ignoring
model has unused tensor blk.92.nextn.shared_head_norm.weight (size = 20480 bytes) -- ignoring

Any idea what that's about?

ttkciar

Oct 2, 2025

Never mind, the folks at r/LocalLLaMA filled me in. This is the layer used for multi-token prediction, which llama.cpp does not yet support.

Thanks for providing such a fantastic model, btw! I really appreciate it.

ttkciar changed discussion status to closed Oct 2, 2025

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