Murfy AI is a cloud-based LaTeX editor built by the Korean startup Murple.ai, positioned as a faster, AI-assisted alternative to Overleaf for researchers, grad students, and academic teams. You write in real time with unlimited free collaborators, and an AI layer handles compile-error fixes, LaTeX generation, and a first-pass paper review.
Short answer: Murfy AI is a free-to-start LaTeX editor with AI compile-error fixes and paper review. The free Starter plan includes unlimited collaborators and 1,000 monthly AI credits; Pro costs ₩29,000/month (about $21) or ₩21,750/month billed yearly (about $16), with 20,000 credits and a 5-minute compile timeout instead of 30 seconds.
I spent time going through Murfy's live pricing page, its sign-up flow, and its AI feature descriptions to see what you're actually getting before you migrate a thesis or a paper draft off Overleaf. Here's what setup looks like, what it costs in real dollars, and where I'd hold off.
What you'll need
You need a Google or email account to create a free workspace at app.murfy.ai — no card required for the Starter tier, per Murfy's pricing page. If you're coming from Overleaf, export your .tex files and any custom .bib or image assets first, since Murfy doesn't advertise a one-click Overleaf import. You don't need to know LaTeX cold; the AI chat is built to generate tables, equations, and algorithm blocks from plain-English prompts. But you do need a project scoped to LaTeX specifically — Murfy is a document editor for math- and citation-heavy academic writing, not a general drafting tool, so it's the wrong pick if you're just writing prose.
Step-by-step: Setting up Murfy AI
1. Create a free account
Go to murfy.ai and click through to app.murfy.ai. This starts you on the Starter plan: unlimited projects, unlimited collaborators, 1,000 AI credits a month, and a 30-second compile timeout.
2. Start a project from a template or blank document
Murfy ships pre-built conference, journal, and thesis templates. Picking a matching template saves you from fighting with class files and preamble packages before you've written a word.
3. Invite collaborators
Add co-authors by email inside the project. This is the detail that stood out most in my testing: Murfy puts unlimited collaborators on its free tier, where Overleaf's free plan caps you at one collaborator per project and only unlocks 10 on its $8.25/month Student plan.
4. Use the AI chat to generate LaTeX
Ask for a table, an equation block, or an algorithm in plain English and the assistant returns LaTeX you can drop straight into the document. This is where your monthly credit allowance actually gets spent, so treat vague, repeated prompts as wasted credits.
5. Let the AI read your compile errors
When a compile fails, Murfy's stated approach is to parse the log itself and propose a fix as a diff you accept or reject, rather than making you decode a wall of red LaTeX errors. In my testing this framing matters more than it sounds — LaTeX error logs are notoriously unreadable for anyone who didn't write the package causing the failure.
6. Run the AI paper review before you submit
Once a draft is far enough along, the paper-review feature checks it for weaknesses reviewers commonly flag — things like unverified claims of scale or thin recent-citation coverage — described on Murfy's site as "the review a venue would write, minus the verdict." Treat it as a pre-submission gut check, not a substitute for an advisor's read.
7. Upgrade only if you hit the free limits
If 1,000 monthly AI credits or a 30-second compile timeout starts blocking you — common on long documents with heavy figures — Pro raises that to 20,000 credits and a 5-minute timeout for ₩29,000/month, or ₩21,750/month if you pay annually.
Example prompts you can copy
Murfy's AI chat responds better to specific requests than to generic ones. A few starting points:
- "Generate a three-column table comparing these five methods on accuracy, training time, and dataset size, with a caption and a label I can reference with \ref{}."
- "Write the LaTeX for this equation: [describe the equation in words], using the amsmath package."
- "My compile failed with this error: [paste the log]. Explain what's wrong and show the fix as a diff."
- "Review this section for a reviewer's likely objections — flag any claim I make about performance at scale that isn't backed by a citation in this draft."
Paste the actual error log or equation description rather than paraphrasing it loosely — the AI chat, like most LLM-backed tools, produces better LaTeX when it has the exact text to work from instead of a vague summary.
Common mistakes to avoid
The first mistake I'd flag: burning AI credits on requests you could type faster by hand, like a two-row table. Save the credits for the genuinely fiddly stuff — nested tables, multi-line equations, algorithm pseudocode — where AI generation actually beats typing it yourself. Second, trusting the AI paper review as a final check instead of a first pass; it's built to catch common reviewer objections, not to replace a co-author or advisor reading the whole argument. Third, not exporting your .tex source periodically — cloud editors are convenient until a service issue locks you out mid-deadline, so keep a local or Git copy of anything with a hard due date. Fourth, assuming the 30-second free compile timeout will hold on a long thesis with many figures; it's the single most common thing that pushes free users to Pro, so check your typical compile time on a real chapter before you commit to a plan. Fifth, skipping the version history check — Starter only keeps 24 hours of history, so a mistake you don't catch same-day isn't recoverable on the free tier.
Murfy AI vs. Overleaf at a glance
| Murfy AI | Overleaf | |
|---|---|---|
| Free tier collaborators | Unlimited | 1 per project |
| Free tier AI usage | 1,000 credits/month | 5 AI uses/day |
| Free compile timeout | 30 seconds | Basic (shared queue) |
| Paid entry price | ₩29,000/mo (~$21), ₩21,750/mo billed yearly (~$16) | $25/mo Standard ($16.75/mo billed yearly) |
| Paid-tier compile timeout | 5 minutes | 24x Basic |
| Version history (free) | 24 hours | Full document history on paid plans |
I pulled Murfy's numbers from its pricing page and Overleaf's from its own plans page, both checked August 30, 2026; USD figures for Murfy are converted from Korean won at roughly ₩1,378 to $1 and will drift with the exchange rate. Overleaf's paid tiers add Git, GitHub, Dropbox, Zotero, and Mendeley integrations that Murfy's public pages don't currently list — worth checking directly if your workflow depends on one of those.
Tools that make this easier
If Murfy is one piece of a bigger academic workflow, my AI tools for students roundup covers where an AI LaTeX editor fits next to research and study tools. For the research and source-gathering that happens before you're writing LaTeX at all, how to use Perplexity for research is a useful companion. If you're drafting prose sections — the abstract, the intro, cover letters to journals — outside of Murfy's math-and-citation focus, best AI writing tools and AI writing assistant cover general-purpose options. And if you're comparing AI study tools more broadly for a semester, not just for one paper, best AI tool for study is a good next read.
My take
Murfy's free-tier collaborator limit is the strongest reason to try it if you're on a multi-author paper right now: Overleaf makes you pay to add a second co-author, and Murfy doesn't. The AI features — error-diff fixes and a pre-submission review — solve real LaTeX pain points rather than bolting AI onto a workflow that didn't need it. What I can't verify without a paid account is how the paper-review feature performs against an actual reviewer's objections, or how often 20,000 monthly credits gets consumed on a real thesis. Murple.ai's backing (seed funding from Naver Z and a spot in NVIDIA's startup program, per its own public announcements) suggests it isn't a weekend project, but it's also a small, newer company next to Overleaf's decade-plus track record — worth weighing if uptime during a submission deadline is your top concern.
Frequently Asked Questions
Is Murfy AI free?
Yes, for individual use with limits. The Starter plan is free with unlimited projects and collaborators, 1,000 monthly AI credits, a 30-second compile timeout, and 24-hour version history. Pro removes those limits for ₩29,000/month (about $21), or ₩21,750/month billed yearly.
How long does it take to set up Murfy AI?
A few minutes. Creating an account and starting a project from a template is fast; the time investment is in migrating existing .tex files from another editor and adjusting to Murfy's AI chat workflow if you're used to typing LaTeX by hand.
What is the easiest way to use Murfy AI?
Start from one of Murfy's built-in templates instead of a blank document, and use the AI chat for the LaTeX you'd otherwise look up — tables, equations, algorithm blocks — rather than for prose you can write faster yourself.
How is Murfy AI different from Overleaf?
Murfy puts unlimited collaborators on its free tier, where Overleaf's free plan allows one. Overleaf has a longer track record and more third-party integrations (Git, Zotero, Mendeley) on its paid plans. Murfy's differentiator is the AI layer: compile-error diffs and an automated paper review that Overleaf's AI assistant doesn't frame the same way.
Does Murfy AI work for non-academic documents?
It's built specifically for LaTeX, which makes it a strong fit for papers, theses, and math- or citation-heavy documents, and a poor fit for general writing. For non-LaTeX drafting, a general AI writing tool is the better choice.