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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
0-MLP-SM
26754
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MODEL
0-mlp-sm
Source/SAE
INDEX
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phrases or mentions related to being "on" or "active."
oai_token-act-pair · gpt-4o-mini
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New Auto-Interp
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/26754?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/0-mlp-sm/26754?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true
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Neuron Alignment
Index
Value
% of L₁
376
+0.15
0.8%
285
+0.11
0.6%
369
+0.11
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
207
+0.15
0.01
42
+0.11
0.01
285
+0.11
0.01
Negative Logits
izumab
-1.57
Ĺ
-1.57
³
-1.56
immunoglob
-1.54
Ŀ
-1.53
ĥ½
-1.50
↵
-1.50
-1.50
↵↵
-1.50
-1.50
POSITIVE LOGITS
LINE
2.11
CE
1.93
oi
1.91
ZO
1.76
PHA
1.70
CAST
1.65
DO
1.58
dp
1.58
GE
1.58
FO
1.58
Act
ivations
Density 0.130%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations