ZERO grounded literary language models Copyright 2025-2026 ZERO contributors Project software is provided under the Apache License 2.0. Trained model artifacts are provided under CC BY-SA 4.0 to the extent stated in LICENSE-MODEL.md. First-party generated data identified in LICENSE-DATA.md is dedicated under CC0 1.0. ZERO.4's lineage includes public-domain literary works, Project Gutenberg editions, CC BY-SA Wikisource transcription contributions, King James Bible text, project-authored foundation statements, and project-generated quantity records. Required source attribution and jurisdiction notes are recorded in CORPUS_RIGHTS.md and corpus/RIGHTS.json. Project Gutenberg and Wikimedia/Wikisource do not sponsor or endorse ZERO.