LongWriter

LongWriter is an AI text generation model designed for working with large documents without losing the main narrative thread or meaning.

What it does

Developed in China by researchers at Tsinghua University in Beijing, LongWriter was trained on texts ranging from 2–3 thousand characters to materials over 30 thousand characters. The goal is to keep a consistent concept and context across long outputs.

Key components mentioned by the project include Agent WR (for splitting content into semantic sections) and long-context LLMs (to help preserve overall context across sections).

How to use it

LongWriter can be downloaded and installed for free from GitHub. For long-form generation, it typically requires a carefully written prompt: you break the overall task into smaller subtasks, define the goal for each, and run multiple generation cycles within a single request to reduce repetitive phrasing.

Key features

• AI model for text generation
• Open framework
• Supports Agent WR and long-context LLM models
• Works best with detailed, structured prompts
• Designed for long materials (training includes texts over 30,000 characters)