Moving from OpenAI Prism · Alternatives
OpenAI Prism alternatives, compared
62 days left to export your Prism projects
Prism gave researchers three things at no cost: AI that edits the paper, LaTeX without installing anything, and co-authors editing together. Here is how the main options compare on exactly those points.
| scime draft | Overleaf (free plan) | Codex (OpenAI's suggestion) | |
|---|---|---|---|
| Where you write | In the browser | In the browser | On your computer, in a local folder |
| Prism ZIP import | Whole export in one step, chats kept as notes | Upload each project's ZIP | Open the unzipped folder |
| AI in the editor (free) | Included, no usage limit; or bring your own OpenAI or Anthropic key | Daily allowance; AI Assistant on paid plans | Coding agent, with your ChatGPT plan |
| Co-authors per project (free) | Up to 30, editing in real time | 1 editor or reviewer (viewers unlimited) | No shared real-time editing |
| Version history (free) | Snapshots of every file | 24 hours | Whatever you set up (for example git) |
| Zotero (free) | Included | Paid plans | Not built in |
| Before you submit | Venue rule check, reference check, mock reviews, rebuttal help | Journal templates | Not built in |
Overleaf: free and premium features and Overleaf AI plans (July 2026). Codex: OpenAI's Prism to Codex migration guide. Checked October 2026; plans change, so check each site before you decide.
Which one fits
- You wrote with co-authors in Prism and want the same, free: scime draft. Import the ZIP, invite your co-authors, and AI works as before.
- Your group already pays for Overleaf: Overleaf. Upload each project's ZIP; the chats stay in your export folder.
- You work alone and like local tools: Codex, as OpenAI suggests, on the unzipped folder.
Try it with your real export
It takes about a minute. Your Prism ZIP stays on your computer as a backup, and you can download any project as a ZIP at any time.
OpenAI, Prism and Codex are trademarks of OpenAI. Overleaf is a trademark of its owner. scime draft by Latentic Labs is not affiliated with or endorsed by OpenAI or Overleaf.