© Neuronpedia 2026
    Privacy & TermsBlogGitHubSlackTwitterContact
    Neuronpedia logo - a computer chip with a rounded viewfinder border around it
    Neuronpedia
    Jacobian LensNEW
    Natural Language
    Autoencoders
    MAY 26    Assistant AxisJAN 26Circuit TracerAPR 26SteerSAE EvalsExportsinterp-engineNEW Community BlogPrivacy & TermsContact
    Side-by-side compare needs a wider screen.
    Open other featureClose compare
    PrevNext
    Close
    Circuit Sparsity
    No connected neurons data available
    Explanations

    list items or sys.exit

    python-code · gemini-2.5-flash-lite

    last element of list (negative activations)

    python-code · gemini-2.5-flash-lite
    Auto-Interp Tools
    Top Features by Cosine Similarity
    Configuration
    Prompts (Dashboard)
    16,384 prompts, 256 tokens each
    Dataset (Dashboard)
    neuronpedia/python-code-simplified
    No Configuration Found
    Embeds
    IFrame
    Link
    Negative Logits
    city
    -0.09
    _city
    -0.08
     city
    -0.08
    _cities
    -0.07
     cities
    -0.07
    gion
    -0.07
    ity
    -0.07
    ities
    -0.07
    ange
    -0.06
    udent
    -0.06
    Positive Logits
     dp
    0.13
    _comb
    0.09
    _counts
    0.07
    osition
    0.06
    _sum
    0.06
     comb
    0.06
    os
    0.06
    inations
    0.06
    ati
    0.06
     pos
    0.05
    Activations Density 100.000%

    No Known Activations

    PrevNext
    Close
    Circuit Sparsity
    No connected neurons data available
    Explanations

    opening parenthesis of function calls or definitions (negative activations)

    python-code · gemini-2.5-flash-lite
    Auto-Interp Tools
    Top Features by Cosine Similarity
    Configuration
    Prompts (Dashboard)
    16,384 prompts, 256 tokens each
    Dataset (Dashboard)
    neuronpedia/python-code-simplified
    No Configuration Found
    Embeds
    IFrame
    Link
    Negative Logits
     break
    -0.03
     in
    -0.03
     >=
    -0.02
    s
    -0.02
     <=
    -0.02
    [-
    -0.02
     !=
    -0.02
    }")↵↵
    -0.02
    ns
    -0.02
    }")<|
    -0.02
    Positive Logits
    [j
    0.08
    instance
    0.03
     given
    0.03
    <
    0.03
    +
    0.02
     log
    0.02
    ram
    0.01
    ro
    0.01
     P
    0.01
    ases
    0.01
    Activations Density 89.432%

    No Known Activations