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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
0-MLP-SM
28145
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MODEL
0-mlp-sm
Source/SAE
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Explanations
instances of the word "this."
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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https://www.neuronpedia.org/pythia-70m-deduped/0-mlp-sm/28145?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true
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Neuron Alignment
Index
Value
% of L₁
134
+0.16
0.9%
464
+0.13
0.8%
67
+0.13
0.7%
Correlated Neurons
Index
P. Corr.
Cos Sim.
402
+0.16
0.15
26
+0.13
0.14
199
+0.13
0.14
Negative Logits
rass
-1.59
awk
-1.57
hou
-1.47
astro
-1.43
raud
-1.39
acci
-1.39
inj
-1.36
bow
-1.34
wonder
-1.34
ymph
-1.33
POSITIVE LOGITS
µ
1.66
acting
1.57
Ŀ
1.57
Ń
1.54
¬
1.42
´
1.42
gaard
1.39
ļ
1.38
Ģ
1.38
Ĩ
1.37
Act
ivations
Density 0.274%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations