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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
2-MLP-SM
23565
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MODEL
2-mlp-sm
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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/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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https://www.neuronpedia.org/pythia-70m-deduped/2-mlp-sm/23565?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true
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Neuron Alignment
Index
Value
% of L₁
23
+0.23
1.3%
156
+0.18
1.0%
127
+0.13
0.7%
Correlated Neurons
Index
P. Corr.
Cos Sim.
23
+0.23
0.05
63
+0.18
0.07
93
+0.13
0.09
Negative Logits
ĻĤ
-3.99
¶
-2.78
ĥ½
-2.69
Īĺ
-2.61
Ī
-2.61
Ĩ
-2.60
µ
-2.59
¸
-2.52
č↵č↵
-2.51
↵
-2.51
POSITIVE LOGITS
';
1.75
'}
1.56
loser
1.54
keeper
1.53
');
1.51
deal
1.45
hips
1.44
')
1.42
LORD
1.42
streak
1.39
Act
ivations
Density 2.295%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations