InsightOS
An end-to-end AI platform for writers that does summarization, emotion detection, SEO scoring, toxicity analysis, and intelligent rewriting — all in one place. Six HuggingFace models working together behind a clean dashboard.

InsightOS is a comprehensive AI Writing Intelligence Suite. Paste any text, and within seconds you get a full analysis — summary, sentiment, emotions, keywords, toxicity score, readability metrics, SEO scoring, and the ability to rewrite in seven different styles.
The analysis pipeline
When you submit text, InsightOS runs it through six different AI models simultaneously. Each model specialises in one thing:
Summarization uses Facebook's BART-large-CNN to compress long text into a concise summary. Sentiment analysis uses a fine-tuned DistilBERT to classify text as positive or negative with a confidence score. Keyword extraction identifies the most important terms and phrases. Emotion detection breaks down the emotional content into joy, anger, sadness, fear, and more. Toxicity analysis scores content safety across multiple dimensions.
All of these run in parallel through the HuggingFace Inference API, so the full analysis completes in a few seconds rather than running sequentially.
Readability metrics
Beyond AI analysis, InsightOS computes traditional readability metrics client-side: Flesch Reading Ease, Gunning Fog Index, SMOG Index, and an estimated grade level. These give writers a concrete, standardised measure of how accessible their writing is.
SEO tools
The SEO analyser scores text from 0 to 100, checking keyword density, passive voice percentage, sentence length distribution, and structural elements. It provides specific, actionable recommendations — not vague suggestions, but concrete changes.
The rewriter
The rewriter transforms text into seven different styles, each powered by Qwen: professional email, tweet, formal business, creative, ELI5 (Explain Like I'm 5), shortened, and expanded. You can take the same paragraph and see how it reads as a tweet versus a formal business communication.
History tracking
Every analysis is saved to localStorage, so you can revisit past analyses, compare how your writing has changed, and track quality metrics over time — all without any account or server-side storage.
InsightOS was built because I wanted a single tool that takes writing seriously — not just grammar checking, but genuine intelligence about what you've written and how to make it better.