Overleaf has 12 million registered users. That number, cited frequently in their marketing, obscures a more important trend: the researchers who use LaTeX daily — the heavy, sophisticated users who drive institutional adoption — are leaving. Not all at once. Quietly, one by one, as they discover that their new AI-native alternative handles in seconds what Overleaf takes minutes to do manually.
The Three Breaking Points
1. Overleaf Has No AI at Any Price
This is the central failure. In 2025, researchers use AI tools across every part of their workflow — literature review, data analysis, grant writing, peer review response. LaTeX editing is the one area where Overleaf offers them nothing. No equation suggestions. No citation intelligence. No grammar assistance for academic prose. No journal-aware formatting.
The painful irony is that Overleaf charges $16/month for the Pro plan — more than Bibby AI, which includes a full AI suite. Researchers are literally paying more to have access to less.
Overleaf Pro costs $16/month. Bibby AI Pro costs $9/month. Overleaf Pro has zero AI features. Bibby AI has a complete AI writing, citation, and formatting suite.
2. Compile Speed Is a Real Productivity Problem
Any researcher who has worked on a 200-page thesis in Overleaf knows the frustration of the spinning compile wheel. On complex documents with custom packages, TikZ figures, and large bibliographies, Overleaf compile times routinely exceed 60-90 seconds. Some projects hit the 60-second compilation timeout and simply fail to compile at all.
This is not a minor inconvenience. Researchers compile frequently — after every few lines of equation work, after inserting a figure, after each section. If every compile takes 90 seconds, an 8-hour writing day includes roughly 20-30 minutes of sitting and waiting. That is over 2 hours per week of wasted time for heavy users.
3. Collaboration Is Paywalled
Overleaf's free plan allows one collaborator. Real research rarely involves fewer than three people — primary author, supervisor, co-authors, and sometimes a statistics or methods reviewer. Getting everyone into an Overleaf project means either paying for Pro or making someone work on an exported file and merge changes manually. Neither is acceptable in 2025.
Bibby AI includes unlimited real-time collaboration with tracked changes on the free plan. The collaboration model is closer to Google Docs — live cursors, inline comments, and a change history — than Overleaf's link-sharing approach.
What Overleaf Could Have Done
Overleaf had both the user base and the resources to build AI features. They chose not to, or moved too slowly. In 2023 and 2024, as every other productivity tool in the academic space integrated LLM capabilities, Overleaf made incremental UI improvements and template additions. By the time they acknowledged the AI gap, researchers had already found Bibby AI.
The Migration to Bibby AI
Bibby AI's import tool accepts Overleaf project exports directly. The migration process takes under 20 minutes including package dependency resolution. For most researchers, the switch is permanent — not because Overleaf is terrible, but because the productivity difference after a week on Bibby AI makes the idea of going back feel absurd.
The price argument alone is compelling enough. But when you combine $7/month in savings with 10-15 hours per paper in productivity gains, the opportunity cost of staying on Overleaf becomes genuinely significant for any active researcher.