# Documentation — OpenJEV E4B 1.0

## Experiment 1 whitepaper

**OpenJEV E4B: Training a direct-decision readout on Gemma 4 E4B. Experiment 1 method, evaluation, and results.**

PDF: [`OpenJEV_E4B_Experiment_1_Whitepaper.pdf`](./OpenJEV_E4B_Experiment_1_Whitepaper.pdf)

Source: [`source/OpenJEV_E4B_Experiment_1_Whitepaper.docx`](./source/OpenJEV_E4B_Experiment_1_Whitepaper.docx) and [`source/build_whitepaper.js`](./source/build_whitepaper.js).

The report covers the direct-decision interface, development sequence and promotion rule, the choice-panel evaluation, five standard public tasks, limitations, release records, and reproduction steps. Gemma and OpenJEV 1.0 have complete same-row choice-panel results, including options-only controls and paired comparisons.

Current results are in [`EXPERIMENT_1_RESULTS.md`](./EXPERIMENT_1_RESULTS.md). Frozen rows, the construction audit, scoring code, and row-level outputs are in [`../eval/choice_panel/`](../eval/choice_panel/).

## Experimental image and audio input

[`MULTIMODAL_EXPERIMENTAL.md`](./MULTIMODAL_EXPERIMENTAL.md) describes the optional `multimodal=True` loader path, its smoke test, and its limits.