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    5. GPT-OSS-20B
    gpt-oss-20b
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    Releases

    gpt-oss BatchTopK SAEs
    September 2025
    Andy Arditi
    gpt-oss-sae

    Attention Visualizer

    HeadVis (Luger, Kamath et al.)
    Find Head By Metric
    Metric & Number of Heads
    Top 8
    Click head to select
    Layer 1
    Layer 7
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    Layer 15
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    Head Index

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    Features in GPT-OSS-20B@11-resid-post-aa
    1. Hover over a feature on the left to preview its details.
    2. Click a feature to lock it and interact with it.