How they compare
| Feature | Crixet | Overleaf Free | Bibby AI | OpenAI Prism |
|---|---|---|---|---|
| Unlimited collaborators | 1 on Free | Unlimited (Pro) · not on Free | ||
| Unlimited projects | Unlimited (Pro) · 2 on Free | |||
| Compile time / limits | Unlimited | Timeout on Free | Unlimited (Pro) · 30 compiles on Free | Unlimited |
| Zotero / citation search | ||||
| Comments | Coming soon | |||
| AI assistant / Fix with AI | Minimal trial | |||
| Image to LaTeX | Minimal trial | |||
| Voice to LaTeX | Yes (Pro) | |||
| Native LaTeX compiler | ||||
| Research data not used for training | Independent (pre-OpenAI) | OpenAI-hosted |
Crixet and Overleaf Free cells follow Crixet's published comparison (as of Sep 2025). Bibby cells use current plan limits. Prism is the OpenAI-hosted successor to Crixet. Privacy details for Prism.
Who should choose which
Bibby AI
You want citations, paper review, figures, and LaTeX in one workspace, and you care that drafts are not used to train someone else’s model.
Overleaf
You already collaborate in Overleaf, need publisher templates and comments today, and AI in the editor is optional.
Crixet
The pre-OpenAI product: unlimited free compiles and collaborators. That workspace now continues as Prism.
OpenAI Prism
You want Crixet’s editor with OpenAI behind it, and you are comfortable with an OpenAI-hosted research workspace.
Switch from Overleaf to Bibby
- In Overleaf, download the project as a ZIP (Menu → Download → Source).
- In Bibby, create a project and import the ZIP. Your
.tex,.bib, and figures come with it. - Open the main file, compile, then use citation search and templates if you need a venue restyle.
Frequently asked questions
Is Bibby AI better than Overleaf?
Bibby puts citations, reviews, equations, and figures in the same LaTeX editor. Overleaf is stronger today for mature real-time collaboration and publisher templates. Choose Bibby if you want a co-author in the editor; stay on Overleaf if you already rely on its collab workflow.
Are Crixet and OpenAI Prism the same product?
Yes in lineage: OpenAI acquired Crixet and rebranded it as Prism. We still list both columns so you can see the old Crixet positioning next to the current Prism workspace.
Can I import Overleaf projects into Bibby?
Yes. Export the project as a ZIP from Overleaf and import it into Bibby. .tex files, .bib files, figures, and class/style files come across. Then pick a journal template if you need a venue restyle.
What does Bibby’s free plan include?
Free includes 2 projects and 30 compiles. Pro unlocks unlimited projects, compiles, collaborators, and the full AI toolset.
Where should I read about Prism and research data?
This page is the feature head-to-head. For encryption, training, and IP, see Bibby vs OpenAI Prism.
I want a list of every Overleaf alternative, not a four-way table.
Use the 2026 Overleaf alternatives guide for VS Code, TeXstudio, Papeeria, and when each fits.
