ChatGPT can't
write long documents

Why does ChatGPT lose coherence in long documents?

Because it generates in a single pass with no fixed outline. Even inside a large context window, information in the middle gets weighted less (the 'lost in the middle' effect), so by chapter 8 it has drifted from chapter 2 — repeating points, contradicting earlier sections and forgetting terminology. It's a structural limit of autoregressive chat models, not a prompting mistake.

What is the best ChatGPT alternative for documents over 100 pages?

To author — not just read — a 100–200 page document, you need a tool that plans the structure first and generates section by section against a shared summary, instead of one long prompt. Nomos is built this way. Large-context models like Claude or Gemini are better for reading and answering questions over a big file than for writing one end to end.

How many pages can Nomos handle?

Nomos is designed for documents up to around 200 pages — theses, annual reports, technical manuals, RFP responses and full-book translation. It keeps a consistent outline, terminology and cross-chapter references across the whole document, and exports to Word.

Is Nomos free to try?

Yes. You can create an account and generate documents with the free credits included on sign-up, no card required. Nomos uses one-time credits per document instead of a monthly per-seat subscription, so you only pay for what you generate.

Does Nomos replace ChatGPT entirely?

No — and it shouldn't. For emails, brainstorming and short drafts under 20–30 pages, ChatGPT and Claude are excellent. Nomos is the specialised alternative for the long-document work where general chat models break down: keeping a 100–200 page document coherent, structured and export-ready. Use each for what it does best.