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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
0-MLP-SM
27162
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MODEL
0-mlp-sm
Source/SAE
INDEX
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Explanations
instances of the word "it"
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/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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<iframe src="https://www.neuronpedia.org/pythia-70m-deduped/0-mlp-sm/27162?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true" title="Neuronpedia" style="height: 300px; width: 540px;"></iframe>
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https://www.neuronpedia.org/pythia-70m-deduped/0-mlp-sm/27162?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true
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Neuron Alignment
Index
Value
% of L₁
494
+0.13
0.7%
41
+0.11
0.6%
399
+0.10
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
352
+0.13
0.22
185
+0.11
0.18
165
+0.10
0.17
Negative Logits
Ĭ
-3.85
IJ
-3.75
ī
-3.67
ľ
-3.60
ĻĤ
-3.58
ĩ
-3.56
ij
-3.52
į
-3.52
ĭ
-3.48
¸
-3.46
POSITIVE LOGITS
grading
1.57
.’”
1.56
multivariate
1.53
/@
1.48
families
1.45
ses
1.41
.’
1.39
blockade
1.38
:&
1.38
ney
1.34
Act
ivations
Density 0.397%
Stacked
Snippet
Full
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No Known Activations