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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
0-MLP-SM
27094
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MODEL
0-mlp-sm
Source/SAE
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Explanations
the occurrence of the word "up" in various contexts
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
383
+0.12
0.7%
36
+0.10
0.6%
124
+0.10
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
297
+0.12
0.09
95
+0.10
0.09
399
+0.10
0.09
Negative Logits
¥
-2.73
Ĥ
-2.60
Ģ
-2.55
ł
-2.54
µ
-2.48
¯
-2.44
↵
-2.37
↵
-2.37
č↵
-2.37
↵
-2.37
POSITIVE LOGITS
front
1.35
writers
1.33
craft
1.33
Koch
1.29
hog
1.28
hold
1.28
uchi
1.27
USP
1.26
jets
1.25
cale
1.24
Act
ivations
Density 0.129%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations