RLHF Data Labeling: 9 Proven Rules for Preference Data That Works

Your reward model learns your raters Here is the part most teams skip past on their way to the fun bit. A reward model only ever sees one thing: which of two answers a human clicked. It has no access to whether the answer was correct, helpful or safe. Twenty thousand clicks go in, and […]

Data Annotation Quality Metrics: 7 Powerful Checks That Expose Bad Labels

Everyone claims 95% Go and look at ten annotation vendor websites. Nine of them advertise 95% accuracy or higher. Ours does too. Now ask any of them how they measured it. You will get three different answers and one silence, which is the actual problem with data annotation quality metrics as they are used commercially. […]

What Is Data Annotation? Complete Guide for AI Teams (2026)

Data annotation workflow showing labeling, QA review, and export for model training

If you’ve ever wondered how an AI model learns the difference between a tumor and “just a shadow,” or a pedestrian and a mailbox, here’s the unglamorous truth: It’s not magic. It’s labeled data. Data annotation is the process of adding labels to raw data so machine learning models can learn from it. Those labels […]

How Data Annotation Is Transforming Healthcare AI: Inside the OneMedNet-Medcase Partnership

Logos of OneMedNet and Medcase connected by data streams symbolizing healthcare data annotation collaboration

The Silent Revolution in Healthcare AI The quietest revolutions in technology rarely make headlines.Sometimes, they don’t involve shiny new apps or groundbreaking models, but the invisible work behind the curtain: data quality. This is the story behind the OneMedNet–Medcase partnership, a collaboration designed not to reinvent AI itself, but to improve the data that feeds […]

10 Hidden Ways You Data Annotation Shapes Your Daily Life

data annotation in everyday life examples

Data annotation might sound like something tucked away in a research lab or a tech startup’s basement, but in truth, it’s all around us. Every time we unlock our phones, binge-watch shows, or even walk into a grocery store, annotation has played a quiet role. It’s the invisible ink that makes artificial intelligence readable. Most […]

AI Model Collapse: How AI Is Eating Itself to Death

Shot of ai robot representing ai model collapse

Artificial intelligence is facing a slow self-destruction: a phenomenon called AI model collapse, where it learns from itself and the results are terrifying. Behind the dazzling progress of AI lies a quietly growing threat. As the internet floods with machine-generated content, AI companies are increasingly turning to this same content to train new models. Model […]