Tools · 2026-10-14

Google's Deep Review: AI checks complex documents for errors

Google has opened Deep Review, an AI tool that checks complex texts such as scientific papers, presentations, and contracts for logical errors and inconsistencies, to everyone.

✨ What this tool is

Google has launched a public version of Deep Review, an AI system that helps check complex documents. It was first built to analyze computer science research papers, but it now works with documents from many fields, including legal and financial ones.

It is hard for people to check long texts because it takes deep expertise and a lot of time. Deep Review aims to solve this: it checks logic and mathematical claims, looks for consistency between sections, and suggests improvements.

📌 How to use it

Every user gets two free document reviews per week. People who need more can connect their own Gemini API key for higher limits. Google's developer site has a separate guide on how to get one.

For now, Deep Review accepts PDF and plain text files. Google says support for multiple files at once is coming soon.

🔹 What happens to your files

Google says documents uploaded to Deep Review are never used to train or improve its models. Uploaded files are stored for one year, but only so they can be shown to you in the tool's interface.

🔸 How it worked before

Deep Review grew out of an experimental tool called the Paper Assistant Tool (PAT). Over the past year it was tested with the conferences STOC 2026, ICML 2026, NeurIPS 2026, and ICLR 2027. More than 16,000 authors who opted in got feedback on their papers before submission, and Google says authors reacted very positively. This feedback was separate from the conferences' official peer review.

Google also explains why AI is needed: the number of research papers is growing faster than people can review them. For example, the three major AI conferences received over 74,000 submissions this year, compared with about 23,000 in 2023.

Sources: 🔗 Google Research Blog