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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
2-MLP-SM
23922
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MODEL
2-mlp-sm
Source/SAE
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Explanations
instances of the word "only"
oai_token-act-pair · gpt-4o-mini
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AutoInterp Type
claude-4-5-haiku
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Top Features by Cosine Similarity
Configuration
ctigges/pythia-70m-deduped__mlp-sm_processed/2-mlp-sm
How To Load
Prompts (Dashboard)
32,768 prompts, 128 tokens each
Dataset (Dashboard)
monology/pile-uncopyrighted
Features
32,768
Data Type
torch.float32
Hook Name
blocks.2.hook_mlp_out
Hook Layer
2
Architecture
standard
Context Size
128
Dataset
EleutherAI/the_pile_deduplicated
Activation Function
relu
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https://www.neuronpedia.org/pythia-70m-deduped/2-mlp-sm/23922?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true
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Neuron Alignment
Index
Value
% of L₁
158
+0.13
0.7%
28
+0.11
0.6%
169
+0.11
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
225
+0.13
0.07
266
+0.11
0.02
252
+0.11
0.06
Negative Logits
ensch
-1.53
antics
-1.43
excess
-1.42
vol
-1.40
bies
-1.37
bugs
-1.37
**_
-1.37
ans
-1.36
external
-1.34
blood
-1.30
POSITIVE LOGITS
↵
2.27
↵
2.27
↵
2.27
↵
2.27
↵
2.27
↵
2.27
<|outofrange|>
2.27
↵
2.27
↵
2.27
↵
2.27
Act
ivations
Density 0.636%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations