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f9dff7a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | # Converting Hugging Face Transformers to LitGPT weights
By default, the `litgpt download` command converts the downloaded HF checkpoint files into a LitGPT compatible format after downloading. For example,
```bash
litgpt download EleutherAI/pythia-14m
```
creates the following files:
```
checkpoints/
└── EleutherAI/
└── pythia-14m/
├── config.json
├── generation_config.json
├── model_config.yaml # LitGPT specific file
├── lit_model.pth # LitGPT specific file
├── pytorch_model.bin
├── tokenizer.json
└── tokenizer_config.json
```
To disable the automatic conversion, which is useful for development and debugging purposes, you can run the `litgpt download` with the `--convert_checkpoint false` flag. This will only download the checkpoint files but do not convert them for use in LitGPT:
```bash
rm -rf checkpoints/EleutherAI/pythia-14m
litgpt download EleutherAI/pythia-14m \
--convert_checkpoint false
ls checkpoints/EleutherAI/pythia-14m
```
```
checkpoints/
└── EleutherAI/
└── pythia-14m/
├── config.json
├── generation_config.json
├── pytorch_model.bin
├── tokenizer.json
└── tokenizer_config.json
```
The required files `model_config.yaml` and `lit_model.pth` files can then be manually generated via the `litgpt/scripts/convert_hf_checkpoint.py` script:
```bash
litgpt convert_to_litgpt checkpoints/EleutherAI/pythia-14m
```
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