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Under Peer Review · Sparse Autoencoders for Pythia-70M-Deduped
Pythia-70M-Deduped
MLP Post
2-MLP-SM
23117
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MODEL
2-mlp-sm
Source/SAE
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Explanations
sequences of arithmetic expressions or mathematical operations
oai_token-act-pair · gpt-4o-mini
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claude-4-5-haiku
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Intrusion Detection
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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Neuron Alignment
Index
Value
% of L₁
269
+0.13
0.7%
336
+0.12
0.7%
92
+0.12
0.6%
Correlated Neurons
Index
P. Corr.
Cos Sim.
269
+0.13
0.02
336
+0.12
0.03
103
+0.12
0.02
Negative Logits
]{.
-1.96
hypotheses
-1.69
]:
-1.63
opo
-1.58
]\\
-1.55
].$$
-1.50
']
-1.49
otry
-1.47
omitted
-1.45
hypothesis
-1.41
POSITIVE LOGITS
↵
4.59
↵
4.59
↵
4.59
↵
4.59
4.59
4.59
4.59
4.59
↵
4.59
<|outofrange|>
4.59
Act
ivations
Density 0.118%
Stacked
Snippet
Full
Show Breaks
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No Known Activations