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What is Liii STEM â
Liii STEM Suite is a beginner-friendly, all-in-one AI-integrated scientific writing platform for STEM professionals.
Core Features â
ðĨ AI-Powered Writing Assistant â
Liii STEM integrates multiple mainstream large language models to provide intelligent writing assistance, automated proofs, and calculations. The built-in AI can interact directly with your rendered content, including mathematics and code.
ð Install AI Integration Features | AI Integration Usage Guide
âĻ Magic Paste â
Directly paste content from web pages, PDFs, or even handwritten materials into Liii STEM while automatically preserving all formatting including formulas, tables, and references - and it's all editable!
ð Magic Paste Guide
ð 100x Faster Formula Editing â
What-You-See-Is-What-You-Get (WYSIWYG) editing with intuitive keyboard shortcuts. Achieve LaTeX-level typesetting effects without the complexity.
ð Smart Cross-Referencing â
Automatic numbering and cross-referencing for figures, tables, formulas, sections, and bibliography with bidirectional linking.
ð Figure Numbering | Table Numbering | Formula Numbering | Section Numbering | Bibliography
ð§ Built-in Environments â
Pre-configured environments for theorems, proofs, definitions, and more - no need to define them yourself like in LaTeX.
ð Environment Insertion Guide
ð Multi-Format Support â
Native TMU format with full LaTeX/BibTeX compatibility for bidirectional conversion, plus one-click precise Word document export.
Technical Foundation â
Liii STEM Suite is built on GNU TeXmacs, a scientific writing platform with nearly thirty years of development history. We've fixed numerous bugs and improved operational efficiency while adding cutting-edge AI features.
Getting Started â
New to Scientific Writing? â
Start with our comprehensive video tutorial: Zero-based Scientific Writing Guide
Coming from LaTeX? â
See how Liii STEM compares and can accelerate your workflow: Liii STEM vs LaTeX
Quick Installation â
Advanced Features â
Structured Search and Replace â
Advanced pattern matching for efficient document editing and formatting.
ð Structured Search and Replace Guide
Latest Updates â
Stay up-to-date with new features and improvements.
ð Version 2025.0.x Changelog
Community Edition â
We also maintain Mogan (åĒĻåđē), a free, community-oriented scientific writing platform that includes many of Liii STEM's features, except for AI integration and advanced OCR capabilities.
Summary Table â
| Liii STEM | GNU TeXmacs | Mogan | |
|---|---|---|---|
| Release Cycle | Customizable, rapid iteration based on user needs | Unfixed | At least one version per month |
| AI Integration | Yes | No | No |
| Magic Paste Support | Supports DeepSeek, ChatGPT, Zhihu, Doubao, etc. | Not supported | Only supports DeepSeek |
| OCR Handwriting/PDF Support | To be released | Not supported | Not supported |
| Open Source | Semi-open source | Fully open source | Fully open source |
| Pricing | Paid | Free | Free |
| Performance | Extremely fast | Slow | Fast |
| UI Style | Modern style | Retro style | Modern style |
| Keyboard Shortcuts | Most work normally | Some unusable | Most work normally |
| Scheme Engine | Liii Scheme | GNU Guile 1.8.x | Goldfish Scheme |
| Lead | Liii Network | Joris van der Hoeven (Mathematician) | Liii Network Founder |
Ready to transform your scientific writing experience? Choose your installation guide above and start exploring the powerful features of Liii STEM!