© 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 index access or dictionary key access (negative activations)

    python-code · gemini-2.5-flash-lite

    return value or boolean

    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
    join
    -0.04
     True
    -0.04
    **
    -0.04
     **
    -0.04
     initial
    -0.03
    _a
    -0.03
    ':
    -0.03
    ':↵
    -0.03
    ":↵
    -0.03
    uild
    -0.03
    Positive Logits
     False
    0.06
     raise
    0.06
     None
    0.05
    (len
    0.04
     []↵↵
    0.04
    None
    0.03
    alse
    0.03
    ault
    0.03
     sys
    0.03
    ("
    0.03
    Activations Density 97.600%

    No Known Activations

    PrevNext
    Close
    Circuit Sparsity
    No connected neurons data available
    Explanations

    subtraction or indexing in lists (negative activations)

    python-code · gemini-2.5-flash-lite

    opening parenthesis for method call with string argument

    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
    visited
    -0.03
     visited
    -0.03
    isited
    -0.03
    rontier
    -0.02
    fset
    -0.02
     dfs
    -0.01
    queue
    -0.01
     possible
    -0.01
    hor
    -0.01
     directions
    -0.01
    Positive Logits
     form
    0.01
     base
    0.01
     ra
    0.01
    ari
    0.01
     zip
    0.01
    point
    0.01
     optim
    0.01
    _par
    0.01
    _lo
    0.00
    _and
    0.00
    Activations Density 98.791%

    No Known Activations