TXT OS – Open-Source AI Reasoning, One Plain-Text File at a Time
Hi HN, I'm excited to share TXT OS — an open-source AI reasoning engine that runs entirely inside a single `.txt` file. - No installs, no signup, no hidden code — just copy-paste the file into any LLM chat window (GPT, Claude, Gemini, etc.). - +22.4% semantic accuracy, +42.1% reasoning success, and 3.6× more stability (benchmarked on GSM8K and Truthful-QA). - Features Semantic Tree Memory, Hallucination Shield, and fully exportable logic. - MIT Licensed, zero tracking, zero ads. Why did I build this? I wanted to prove that advanced reasoning and memory could be made open, portable, and…
In plain words
TXT OS is an open-source AI reasoning engine distributed as a single text file that users can paste into any LLM chat interface without installation or signup. It includes features like Semantic Tree Memory and Hallucination Shield, and is MIT licensed with no tracking or ads. The tool is designed for anyone seeking advanced reasoning capabilities in a portable, accessible format.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN, I'm excited to share TXT OS — an open-source AI reasoning engine that runs entirely inside a single `.txt` file. - No installs, no signup, no hidden code — just copy-paste the file into any LLM chat window (GPT, Claude, Gemini, etc.). - +22.4% semantic accuracy, +42.1% reasoning success, and 3.6× more stability (benchmarked on GSM8K and Truthful-QA). - Features Semantic Tree Memory, Hallucination Shield, and fully exportable logic. - MIT Licensed, zero tracking, zero ads. Why did I build this? I wanted to prove that advanced reasoning and memory could be made open, portable, and accessible to anyone — just with pure text, no software or setup. A note: I'm from China, and English is not my first language. This post and the docs were partly assisted by AI, but I personally reviewed and approved every line of content. All ideas, design, and code are my own work. If anything is unclear or could be improved, I really welcome your feedback! I'm the author, and happy to answer any questions or suggestions here!
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