1667 Review: A Terminal UI for Writing Fiction With LLMs

1667 Review: A Terminal UI for Writing Fiction With LLMs

1667 is a free, open-source terminal UI for writing fiction with language models. Every paragraph the model generates is kept as a sibling “take” on a branching story tree you navigate with the arrow keys, so rejected drafts are never overwritten. It is local-first and works with OpenAI, Anthropic, Ollama or any compatible endpoint. What Is 1667, the Terminal UI for Writing Fiction With LLMs? 1667 is a full-screen, keyboard-driven terminal environment purpose-built for drafting fiction with large language models. Its GitHub description says it plainly: “A full-screen terminal environment for writing fiction with language models.” There is no browser tab, no Electron shell and no web editor — the entire program runs in your terminal. The vendor’s own documentation lives at 1667.ai. ...

October 1, 2026 · 13 min · baeseokjae