New AI-assisted educational story authored for LangBox, 20 September 2026. Spanish source and prepared English rendering, formatting and EPUB files dedicated to CC0 1.0. No third-party book text or illustrations. This prepared example is not evidence of actual model output. Two chapters, two paragraphs each; checks include nine o’clock, Thursday not Tuesday, twelve kilometres and fifteen minutes.

Separate actual production results: actual-es-en.json and actual-en-zh-hant.json contain unedited displayed translation text captured on 20 September 2026. Both short two-chapter jobs completed. The default model shown was GPT-5.6 Luna; this is not a speed or full-book benchmark. Traditional output varies name spelling between chapters; see its limitations. Translations were checked by agents, not certified by independent human language reviewers. Prepared examples above remain explicitly separate from these results.