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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
Residuals
4-RES-SM
13999
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MODEL
4-res-sm
Source/SAE
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technical terms and syntax related to programming and data structures
oai_token-act-pair · gpt-4o-mini
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AutoInterp Type
claude-4-5-haiku
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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
+0.23
1.4%
78
+0.17
1.0%
255
+0.16
1.0%
Correlated Neurons
Index
P. Corr.
Cos Sim.
255
+0.23
0.02
78
+0.17
0.03
185
+0.16
0.08
Negative Logits
ĥ½
-2.42
£
-2.27
↵↵
-2.19
↵
-2.19
-2.19
↵
-2.19
↵ Âł
-2.19
↵
-2.19
<|outofrange|>
-2.19
-2.19
POSITIVE LOGITS
+"
2.23
ULL
2.00
+
1.71
*(
1.68
_);
1.65
++;
1.63
*((
1.59
+(
1.59
);
1.58
*(-
1.57
Act
ivations
Density 1.278%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations