Fuse two frontier models into one Fable-tier answer: Opus 4.8 drafts, a second model (Opus 4.8 or GPT-5.5 via codex) checks, Opus fuses. A Claude Code skill.
1 file for Claude Code: fusion-fable CLAUDE.md — 15,713 tokens loaded in every session.
CLAUDE.md B 15,713 tok These files are duolahypercho/fusion-fable's own configuration — they tell Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.