api

The core class representing a Sparse Autoencoder.

Skills
AI research
0

What it does and how to use it

A skill that teaches Claude Code to do ai research tasks well. It is packaged knowledge the model uses whenever it is relevant.

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Content

# SAELens API Reference

## SAE Class

The core class representing a Sparse Autoencoder.

### Loading Pre-trained SAEs

```python
from sae_lens import SAE

# From official releases
sae, cfg_dict, sparsity = SAE.from_pretrained(
    release="gpt2-small-res-jb",
    sae_id="blocks.8.hook_resid_pre",
    device="cuda"
)

# From HuggingFace
sae, cfg_dict, sparsity = SAE.from_pretrained(
    release="username/repo-name",
    sae_id="path/to/sae",
    device="cuda"
)

# From local disk
sae = SAE.load_from_disk("/path/to/sae", device="cuda")
```

### SAE Attributes

| Attribute | Shape | Description 

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