Markup

AI Text Annotation Tool

Effortlessly annotate text with Markup: the AI Text Annotation Tool for NLP & ML projects.

Markup screenshot

What does Markup do?

What is Markup?

Markup is an annotation tool for rapidly building structured datasets from free-text for NLP and ML, powered by GPT-4.

How does Markup use GPT-4 to enhance annotation?

Markup leverages GPT-4 to predict and suggest annotations, with context-aware guidance that helps reduce manual effort and produce faster, higher-quality structured data for NLP and ML.

What types of datasets can be created with Markup?

Markup supports creating a variety of structured datasets from free-text, including named-entity recognition, concept mapping, sentiment analysis, and other annotation-heavy tasks. The tool supports both standard and custom ontologies.

How do I get started with Markup, and is there a demo or documentation available?

Getting started is simple. Visit the Markup website to sign up for an account. You can try a demo to explore features before subscribing. The site also offers comprehensive documentation and support to help new users navigate and utilize the tool effectively.

Last modified
May 25, 2026
Date listed
Aug 4, 2023