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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
0-MLP-SM
25906
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MODEL
0-mlp-sm
Source/SAE
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Explanations
phrases related to proximity or closeness
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/25906?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/25906?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
+0.13
0.7%
247
+0.11
0.6%
266
+0.11
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
266
+0.13
0.02
86
+0.11
0.02
482
+0.11
0.02
Negative Logits
§
-2.74
ĵ
-2.62
Ĵ
-2.55
º
-2.52
»¿
-2.49
¹
-2.46
ĨĴ
-2.42
©
-2.38
®
-2.34
Ľ
-2.31
POSITIVE LOGITS
than
2.11
Than
1.96
Than
1.68
dimen
1.57
dated
1.54
ago
1.53
duty
1.47
('
1.46
inspection
1.44
duties
1.43
Act
ivations
Density 0.015%
Stacked
Snippet
Full
Show Breaks
Hide Breaks
No Known Activations