Preprints, reviewed in the open.
Any discipline.
Your pick of AI reviewers, named on every report.
Expert certification when you want it.
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XSci Open Review Competition 2026
100 papers.
100 expert reviews.
On us.
Not selected? Your paper keeps its DOI and its public AI referee report, you can answer that report on the same page, and you get $49 off XSci Human Review service.
- $500 award per certified paper with a public report
- 100 papers get a paid expert review
- Free to enter, any discipline
Opens 25 September 2026
Closes 30 November 2026, 23:59 AoE
Three things XSci does
The first stop for every paper, in every discipline.
From the day you post it as a preprint to have it published on the journal or conference you are aiming for, we stay with your paper.
1. Post
We never charge you to publish.
Put your paper online today, free and with a DOI. It is the first step on the way to the venue you are aiming for.
- Free
Posting a preprint costs nothing. - Yours
No exclusivity. Submittable to any journal afterwards. - Instant
Published at once with DOI.
2. Review
Pick from the top AI reviewers, in one place.
We offer AI review, and bring the leading AI review services together here, so you can run several at once and see what to fix before you proceed.
- Choose who reviews you
Reports arrive in minutes to hours, each written by the reviewer named on it. - Review in the open, and get a discount
You read them first, then publish the report beside the paper, or keep it private at full price.
3. Certify
One qualified expert. Your target journals. A yes or a no.
We find a qualified expert in your field to judge whether your paper can make it into the journal you are aiming for. If it can, we help it get there faster.
- Who reviews
Authors you cite, their co-authors, or authors published in your target journals. - What you get
A public badge with the version, the target journals and the date, if yes.
What the badge does for you
- Fewer desk rejections
The badge is a public early signal, so editors take your paper more seriously. - A faster path to publication
We recommend certified papers directly to journal editors. - Easier to grasp
An independent expert's summary helps readers see what your paper contributes.
Published in the journal or conference you are aiming for.
Post, review and certify are three steps on one path, and XSci stays with your paper through all of them.
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