© Neuronpedia 2026
    Privacy & TermsBlogGitHubSlackTwitterContact
    Neuronpedia logo - a computer chip with a rounded viewfinder border around it

    Neuronpedia

    Jacobian LensNEW
    Natural Language
    Autoencoders
    NEW    Assistant AxisNEWCircuit TracerUPDATESteerSAE EvalsExportsAPI Community BlogPrivacy & TermsContact
    1. Home
    3. Google DeepMind · Exploring Gemma 2 with Gemma Scope
    5. Gemma-2-9B
    7. Residual Stream - 16k
    9. 31-GEMMASCOPE-RES-16K
    11. 14910
    Prev
    Next
    INDEX
    Explanations

    references to the term "len" in various contexts, as well as mentions of the name "Leonard."

    oai_token-act-pair · gpt-4o-miniTriggered by @bot

    This neuron appears to be malfunctioning or detecting noise rather than meaningful semantic content. The extremely high activation values (100+) on random variable names, code tokens, and word fragments (like "LEN", "len", "iency", "inist") suggest it's picking

    oai_token-act-pair · claude-4-5-haikuTriggered by @emiglarou
    New Auto-Interp
    Top Features by Cosine Similarity
    Comparing With GEMMA-2-9B @ 31-gemmascope-res-16k
    Configuration
    google/gemma-scope-9b-pt-res/layer_31/width_16k/average_l0_114
    Prompts (Dashboard)
    24,576 prompts, 128 tokens each
    Dataset (Dashboard)
    monology/pile-uncopyrighted
    Features
    16,384
    Data Type
    float32
    Hook Name
    blocks.31.hook_resid_post
    Hook Layer
    31
    Architecture
    jumprelu
    Context Size
    1,024
    Dataset
    monology/pile-uncopyrighted
    Activation Function
    relu
    Embeds
    IFrame
    Link
    Not in Any Lists

    No Comments

    Negative Logits
     marinho
    -0.32
    bibinfo
    -0.31
     vectorielle
    -0.30
    pto
    -0.30
    psy
    -0.29
     tramonto
    -0.29
    Życiorys
    -0.28
     cérami
    -0.28
     المملكة
    -0.28
     świ
    -0.28
    POSITIVE LOGITS
    Personendaten
    0.77
    writeFieldEnd
    0.71
     Len
    0.66
     len
    0.63
    舺
    0.62
    Len
    0.60
    HtmlAttribute
    0.59
    LEN
    0.57
     estekak
    0.56
     LEN
    0.56
    Activations Density 0.151%

    No Known Activations