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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
2-MLP-SM
23815
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MODEL
2-mlp-sm
Source/SAE
INDEX
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Explanations
occurrences of the word "and"
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__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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<iframe src="https://www.neuronpedia.org/pythia-70m-deduped/2-mlp-sm/23815?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true" title="Neuronpedia" style="height: 300px; width: 540px;"></iframe>
Link
https://www.neuronpedia.org/pythia-70m-deduped/2-mlp-sm/23815?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true
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Neuron Alignment
Index
Value
% of L₁
50
+0.13
0.7%
227
+0.12
0.7%
184
+0.12
0.7%
Correlated Neurons
Index
P. Corr.
Cos Sim.
206
+0.13
0.02
50
+0.12
0.02
92
+0.12
0.02
Negative Logits
americ
-1.99
ÃŃa
-1.82
anc
-1.80
û
-1.75
ascular
-1.68
iar
-1.66
ontal
-1.56
ÈĻ
-1.55
/$
-1.53
ayan
-1.52
POSITIVE LOGITS
Īĺ
2.28
ĺ
1.81
°
1.71
ities
1.69
IJ
1.64
Ĥ
1.63
º
1.57
ĨĴ
1.56
İ
1.55
«
1.51
Act
ivations
Density 0.168%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations