Major fixes, improvements, Mixtral model support#2

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drozhevskii wants to merge 4 commits intomainfrom

data_preprocessing/pipeline-fix

Commits on Mar 23, 2026

Major fixes, improvements, Mixtral model support
drozhevskii
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Commits on Apr 14, 2026

set up merged datasets probe experiment, added eval script and notebook for gpt classification (for squad)
drozhevskii
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Commits on Apr 15, 2026

added a split probe script for splitting merged dataset for testing final probe
drozhevskii
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Commits on Apr 17, 2026

set up updated probing experiments with combined datasets
drozhevskii
committed