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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
2-MLP-SM
25960
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MODEL
2-mlp-sm
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instances of writing and related terms
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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Neuron Alignment
Index
Value
% of L₁
420
+0.11
0.6%
370
+0.10
0.6%
262
+0.10
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
67
+0.11
0.04
311
+0.10
0.03
2
+0.10
0.02
Negative Logits
bos
-1.60
ourselves
-1.60
walks
-1.57
arians
-1.56
ingo
-1.54
ARY
-1.53
ATED
-1.53
ABLE
-1.52
prehens
-1.52
alike
-1.48
POSITIVE LOGITS
²
2.16
¶
2.11
ł
2.10
³
2.06
ļ
2.06
®
1.97
µ
1.86
¥
1.79
¾
1.77
¤
1.73
Act
ivations
Density 0.289%
Stacked
Snippet
Full
Show Raw Tokens
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Show Breaks
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No Known Activations