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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
Residuals
4-RES-SM
14571
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MODEL
4-res-sm
Source/SAE
INDEX
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Explanations
the letter 'c' as a prominent feature
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__res-sm_processed/4-res-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.4.hook_resid_post
Hook Layer
4
Architecture
standard
Context Size
128
Dataset
EleutherAI/the_pile_deduplicated
Activation Function
relu
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Neuron Alignment
Index
Value
% of L₁
21
+0.17
1.0%
78
+0.14
0.8%
410
+0.12
0.7%
Correlated Neurons
Index
P. Corr.
Cos Sim.
437
+0.17
0.02
148
+0.14
0.01
311
+0.12
0.01
Negative Logits
e
-1.80
yon
-1.62
ĻĤ
-1.54
ei
-1.51
fulfilled
-1.49
s
-1.47
.’”
-1.45
”;
-1.44
ker
-1.43
”:
-1.42
POSITIVE LOGITS
*)
1.89
++)
1.85
)
1.83
__)
1.76
)](
1.72
opyright
1.70
^)
1.66
)&
1.65
)^[@
1.64
)\
1.63
Act
ivations
Density 0.017%
Stacked
Snippet
Full
Show Breaks
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No Known Activations