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+---
+title: "LLMCompressor Sparse Fine-tuning"
+format:
+  html:
+    toc: true
+    toc-depth: 3
+    number-sections: true
+execute:
+  enabled: false
+---
+
+# LLMCompressor Integration
+
+Fine-tune sparsified models in Axolotl using [LLMCompressor](https://github.com/vllm-project/llm-compressor).
+
+This integration enables fine-tuning of models **already sparsified** using LLMCompressor. 
+It hooks into Axolotl’s training pipeline using the plugin system and maintains sparsity throughout the fine-tuning process.
+
+---
+
+## Requirements
+
+- Install Axolotl with `llmcompressor` extras:
+
+```bash
+pip install "axolotl[llmcompressor]"
+```
+
+- Requires `llmcompressor >= 0.5.1`
+
+This will install all required dependencies for sparse model fine-tuning.
+
+---
+
+## Usage
+
+To enable sparse fine-tuning with this integration, configure your Axolotl YAML like so:
+
+```yaml
+plugins:
+  - axolotl.integrations.llm_compressor.LLMCompressorPlugin
+
+llmcompressor:
+  recipe:
+    finetuning_stage:
+      finetuning_modifiers:
+        ConstantPruningModifier:
+          targets: [
+            're:.*q_proj.weight',
+            're:.*k_proj.weight',
+            're:.*v_proj.weight',
+            're:.*o_proj.weight',
+            're:.*gate_proj.weight',
+            're:.*up_proj.weight',
+            're:.*down_proj.weight',
+          ]
+          start: 0
+# ... (other Axolotl training arguments)
+```
+
+::: {.callout-note}
+This plugin **does not prune or sparsify the model**. It is only meant for **fine-tuning models that are already sparsified**.
+:::
+
+---
+
+## Pre-Sparsified Checkpoints
+
+You can use:
+
+- Your own LLMCompressor-sparsified model
+- Or one from [Neural Magic's Hugging Face page](https://huggingface.co/neuralmagic)
+
+Refer to the [LLMCompressor README](https://github.com/vllm-project/llm-compressor/blob/main/README.md) to learn how to sparsify models or write custom recipes.
+
+---
+
+## Example Config
+
+A full working example is provided at:
+
+```bash
+examples/llama-3/sparse-finetuning.yaml
+```
+
+Run fine-tuning using:
+
+```bash
+axolotl train examples/llama-3/sparse-finetuning.yaml
+```
+
+---
+
+## Learn More
+
+Explore LLMCompressor capabilities, supported modifiers, and detailed examples:
+
+👉 [LLMCompressor GitHub](https://github.com/vllm-project/llm-compressor)