Worthify Journal

How we build and test SI.

Research and engineering notes from Worthify on SI training methods, evaluation results, and the design choices behind our work.

Latest article

Neverball and the Rust reconstruction running side by side

Rust / Reverse engineering · October 14, 2026

Are closed source tools really closed anymore

Linux Neverball and a Rust reconstruction on macOS follow the same keys. An elevator exposes a floating-point mistake in the reconstructed engine.

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Featured article

How We Trained Decision-1

From Google's open Gemma 4 to Decision-1: the prediction architecture, direct choice readout, full-weight training, and held-out routing result.

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Illustration of records entering a choice-scoring system, with a separate route to review — Decision-1 scores the choices you provide; your application handles review and action.

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