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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
0-MLP-SM
30425
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MODEL
0-mlp-sm
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oai_token-act-pair · gpt-4o-mini
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claude-4-5-haiku
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Intrusion Detection
Top Features by Cosine Similarity
Configuration
ctigges/pythia-70m-deduped__mlp-sm_processed/0-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.0.hook_mlp_out
Hook Layer
0
Architecture
standard
Context Size
128
Dataset
EleutherAI/the_pile_deduplicated
Activation Function
relu
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Neuron Alignment
Index
Value
% of L₁
301
+0.13
0.8%
180
+0.11
0.7%
376
+0.10
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
301
+0.13
0.01
180
+0.11
0.01
331
+0.10
0.01
Negative Logits
Ĥ
-2.65
§
-2.59
Ń
-2.59
¯
-2.56
ĥ½
-2.50
³
-2.44
ľĵ
-2.38
¨
-2.28
ľ
-2.17
ij
-2.16
POSITIVE LOGITS
room
2.03
house
2.02
yards
1.83
yard
1.72
rooms
1.69
het
1.66
holm
1.65
wright
1.61
houses
1.60
hors
1.60
Act
ivations
Density 0.009%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations