Mark model as in active development

Link the interactive browser demo from the model card

Describe model architecture, usage and measured evaluation in public model card

V2 end-to-end findings: 48/67 repairs, no valid-cell harm; document one incorrect repair

Validation diagnostics and finalized model card

Joint training checkpoint step 4800

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Document frozen 55-table end-to-end test and validation curves; weights unchanged

Validation diagnostics and finalized model card

Joint training checkpoint step 1523

Joint training checkpoint step 1523

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Document final joint training results and recovery workflow

Validation diagnostics and finalized model card

Joint training checkpoint step 5908

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Validation diagnostics and finalized model card

Joint training checkpoint step 1200