Question 1

Is OpenPrism an Overleaf or OpenAI Prism alternative?

Accepted Answer

Yes. You get the collaborative LaTeX editing, real-time compilation and AI assistance those tools offer, but OpenPrism is built so your data stays yours. No big corporation gets a copy of your research.

Question 2

Does OpenPrism limit compile time or usage like Overleaf?

Accepted Answer

No. Overleaf restricts compile time and meters the resources a project may use. OpenPrism does not throttle or cap your build time, so long theses, heavy bibliographies and large documents compile on the resources they actually need.

Question 3

How exactly is my data protected?

Accepted Answer

Your account password is hashed and salted with bcrypt and never stored in plain text. When you sign up, OpenPrism also generates a public/private key pair for your account. The private key is encrypted with a key derived from your password and is only decrypted into the server’s memory for the duration of your session (or until the server restarts). Everything you store is encrypted with that key, so if the database or all files were ever leaked, they would be unreadable without your password.

Question 4

What data does OpenPrism collect?

Accepted Answer

Only what keeps the service secure and reliable: the date you signed up, your IP address, your user agent, and the requests you make. We do not sell your data, we do not use it for advertising, and we do not use it for anything other than operating OpenPrism. See the privacy policy for the full detail.

Question 5

Does it support BibTeX and citations?

Accepted Answer

Yes. OpenPrism parses every .bib file in your project and gives you rich citation autocomplete, searchable by citation key, title or author.

Question 6

Can I bring my own AI model?

Accepted Answer

Yes. OpenPrism is not locked to a single vendor. You can point it at any OpenAI-compatible API endpoint, choose the model, pick a routing preference (fastest, cheapest or highest throughput), optionally enable web search, and see the token usage and cost of every request. When you use the assistant, the relevant text is sent to the endpoint you configured, so you decide who processes it.

Question 7

Does it have version history and comments?

Accepted Answer

Yes. Every save is snapshotted so you can diff a file against its past versions and restore an earlier one. You can also select any passage and leave an anchored comment, which stays highlighted in the editor and overlaid on the PDF.

Question 8

Can I import an existing Overleaf project?

Accepted Answer

Yes. Upload a project archive (.zip) or a folder and OpenPrism ingests the whole tree, keeping your structure intact. You can export everything back to a zip at any time.

Question 9

How much does OpenPrism cost?

Accepted Answer

OpenPrism has a free plan and two paid plans. The Free plan includes 1 GB of total account storage, up to 3 projects and 1 contributor per project — enough for most single-author work. Pro is $7/month for 5 GB, 10 projects and 3 contributors per project, and Team is $15/month for 50 GB, unlimited projects and 10 contributors per project. Upgrades are handled manually for now: request a plan from your account and we will send payment instructions through a support ticket.

Question 10

What are the storage and project limits?

Accepted Answer

Storage is counted across your whole account (all your projects together). Free is 1 GB / 3 projects / 1 contributor per project, Pro is 5 GB / 10 projects / 3 contributors, and Team is 50 GB / unlimited projects / 10 contributors. If you hit a limit, you can remove files or projects, or request an upgrade from Plan & usage in your account menu.