> For the complete documentation index, see [llms.txt](https://unsloth.ai/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://unsloth.ai/docs/zh/ji-chu-zhi-shi/inference-and-deployment/saving-to-gguf/speculative-decoding.md).
# 投机解码
使用 llama-server、llama.cpp、vLLM 等进行投机解码，实现 2 倍更快的推理
## :llama:llama.cpp、llama-server 中的推测解码
在 llama.cpp 中可以通过以下方式轻松启用推测解码 `llama-cli` 和 `llama-server` 通过 `--model-draft` 参数。请注意，你必须有一个草稿模型，它通常是一个较小的模型，但它必须使用相同的分词器
### GLM 4.7 的推测解码
```python
# !pip install huggingface_hub hf_transfer
import os
os.environ["HF_HUB_ENABLE_HF_TRANSFER"] = "0" # 有时可能会触发速率限制，因此将其设为 0 以禁用
from huggingface_hub import snapshot_download
snapshot_download(
repo_id = "unsloth/GLM-4.7-GGUF",
local_dir = "unsloth/GLM-4.7-GGUF",
allow_patterns = ["*UD-Q2_K_XL*"], # 动态 2bit 使用 "*UD-TQ1_0*" 表示动态 1bit
)
snapshot_download(
repo_id = "unsloth/GLM-4.5-Air-GGUF",
local_dir = "unsloth/GLM-4.5-Air-GGUF",
allow_patterns = ["*UD-Q4_K_XL*"], # 动态 4bit。对于动态 1bit 使用 "*UD-TQ1_0*"
)
```
{% code overflow="wrap" %}
```bash
./llama.cpp/llama-cli \\
--model unsloth/GLM-4.7-GGUF/UD-Q2_K_XL/GLM-4.7-UD-Q2_K_XL-00001-of-00003.gguf \\
--threads -1 \\
--fit on \\
--prio 3 \
--temp 1.0 \\
--top-p 0.95 \\
--ctx-size 16384 \
--jinja
```
{% endcode %}
{% code overflow="wrap" %}
```bash
./llama.cpp/llama-cli \\
--model unsloth/GLM-4.7-GGUF/UD-Q2_K_XL/GLM-4.7-UD-Q2_K_XL-00001-of-00003.gguf \\
--model-draft unsloth/GLM-4.5-Air-GGUF/UD-Q4_K_XL/GLM-4.5-Air-UD-Q4_K_XL-00001-of-00002.gguf \
--threads -1 \\
--fit on \\
--prio 3 \
--temp 1.0 \\
--top-p 0.95 \\
--ctx-size 16384 \
--ctx-size-draft 16384 \
--jinja \\
--device CUDA0 \
--device-draft CUDA0,CUDA1
```
{% endcode %}
{% code overflow="wrap" %}
```bash
./llama.cpp/llama-server \\
--model unsloth/GLM-4.7-GGUF/UD-Q2_K_XL/GLM-4.7-UD-Q2_K_XL-00001-of-00003.gguf \\
--alias "unsloth/GLM-4.7" \\
--threads -1 \\
--fit on \\
--prio 3 \
--temp 1.0 \\
--top-p 0.95 \\
--ctx-size 16384 \
--port 8001 \\
--jinja
```
{% endcode %}
---
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