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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
2-MLP-SM
22794
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MODEL
2-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/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
269
+0.17
1.0%
497
+0.13
0.7%
153
+0.12
0.7%
Correlated Neurons
Index
P. Corr.
Cos Sim.
269
+0.17
0.04
504
+0.13
0.01
332
+0.12
0.07
Negative Logits
.’
-1.84
oust
-1.82
onian
-1.78
‘
-1.69
mouth
-1.68
’.
-1.64
.’”
-1.58
contrary
-1.56
lights
-1.54
agne
-1.52
POSITIVE LOGITS
«
3.11
ĨĴ
2.74
ł
2.54
ŀ
2.50
ĩ
2.41
ª
2.41
£
2.40
¢
2.40
¿½
2.36
§
2.35
Act
ivations
Density 1.780%
Stacked
Snippet
Full
Show Breaks
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No Known Activations