arXiv URLs only (abs or html) · 3 reviews/email/day
Papers are capped at 20 pages and 20k tokens. Each review may take 15–20 minutes. You will get an email when your review is ready. For longer manuscripts, use our tool on GitHub.
We only use your submission for reviewing purposes. If you give feedback on the result page, your feedback (and submission) may be used in an open benchmark for improving AI reviewing.
Use your own key to review full papers
We encourage you to provide an OpenRouter API key so you can review the full paper without the default 20-page / 20k-token submission cap. These limits exist to make a free service possible (reach out if you are interested in sponsoring our research). Using your own key also helps reserve our free service budget for less well-resourced users. Your key is used only for this single review and is never stored or logged. Get one at openrouter.ai/keys.