# Propab > Propab is an AI co-researcher for ambitious science. It reviews the literature, analyses data, writes and runs code in ready scientific environments, runs computational experiments on your compute or GPUs, and keeps every result traced to its source, code and data. Propab is for working scientists in biology, chemistry, physics and computer science. A run can last minutes or days; it reads the literature (290M+ papers, patents, trials, grants), fetches data from 130+ databases, runs code in 40+ ready environments on a hosted sandbox or the researcher's own machines and GPUs, checks its results, and writes them up with every number traced to its source, code and data. Free to start; paid plans from $20 a month. ## Product - [Overview](https://propabai.com/index.md): what Propab does, how a run works, and the questions researchers ask first - [Pricing](https://propabai.com/pricing.md): Free, Pro, Max, Team and Enterprise, and what each includes - [About](https://propabai.com/about.md): what Propab is building and the rules it builds by ## Use cases - [Biology](https://propabai.com/use-cases/biology.md): real runs and the workflows ready for each subfield - [Chemistry](https://propabai.com/use-cases/chemistry.md): real runs and the workflows ready for each subfield - [Physics](https://propabai.com/use-cases/physics.md): real runs and the workflows ready for each subfield - [Computer science](https://propabai.com/use-cases/computer-science.md): real runs and the workflows ready for each subfield ## Policies - [Privacy policy](https://propabai.com/legal/privacy) - [Terms of service](https://propabai.com/legal/terms) ## Optional - [Everything above in one file](https://propabai.com/llms-full.txt)