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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
0-MLP-SM
30672
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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
256
+0.15
0.8%
111
+0.13
0.7%
148
+0.11
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
203
+0.15
0.02
308
+0.13
0.02
480
+0.11
0.01
Negative Logits
¿
-2.03
-2.00
<|outofrange|>
-2.00
↵
-2.00
-2.00
čč
-2.00
↵↵
-2.00
<|outofrange|>
-2.00
-2.00
-2.00
POSITIVE LOGITS
ios
1.79
iary
1.71
ierno
1.67
olin
1.64
opa
1.60
ollah
1.58
"}](#
1.57
ilee
1.55
ató
1.53
booth
1.52
Act
ivations
Density 3.234%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations