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Apollo Research · Taylor · Identifying Functionally Important Features with End-to-End Sparse Dictionary Learning
GPT2-Small
Residual Similar CE E2E Recon
6-RES_SCEFR-AJT
3752
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MODEL
6-res_scefr-ajt
Source/SAE
INDEX
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Explanations
a mix of characters from different languages, possibly a language detection algorithm
oai_token-act-pair · gpt-3.5-turbo
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New Auto-Interp
AutoInterp Type
claude-4-5-haiku
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Top Features by Cosine Similarity
Configuration
neuronpedia/gpt2-small__res_scefr-ajt/6-res_scefr-ajt
How To Load
Prompts (Dashboard)
12,288 prompts, 128 tokens each
Dataset (Dashboard)
Skylion007/openwebtext
Features
46,080
Data Type
torch.float32
Hook Point
blocks.6.hook_resid_pre
Architecture
standard
Context Size
128
Dataset
apollo-research/Skylion007-openwebtext-tokenizer-gpt2
Hook Point Layer
6
Activation Function
relu
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IFrame
<iframe src="https://www.neuronpedia.org/gpt2-small/6-res_scefr-ajt/3752?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/gpt2-small/6-res_scefr-ajt/3752?embed=true&embedexplanation=true&embedplots=true&embedsteer=true&embedactivations=true&embedlink=true&embedtest=true
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Neuron Alignment
Index
Value
% of L₁
288
+0.14
0.5%
649
+0.14
0.5%
302
+0.12
0.4%
Correlated Neurons
Index
P. Corr.
Cos Sim.
284
+0.14
0.05
45
+0.14
0.03
699
+0.12
0.03
Negative Logits
merce
-1.30
kson
-1.19
Äĩ
-1.04
ffer
-1.03
geries
-1.02
atche
-1.02
byn
-1.01
yip
-1.00
ptin
-0.94
mson
-0.94
POSITIVE LOGITS
а
1.26
и
1.20
оÐ
1.18
о
1.09
ÑĤ
1.07
ļ
1.04
±
1.03
Ñ
1.00
н
0.96
Ñĭ
0.96
Act
ivations
Density 0.314%
Test
Steer
Stacked
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Full
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