
SpecialistOffers broad general reasoning and document upload capabilities, but lacks specialized academic indexing and citation databases.

Lune records 6,340 monthly visits with -28% month-over-month growth and Freemium pricing. SciSpace records 4,464,111 monthly visits with +8.6% growth and Freemium pricing.

Evidence-grounded literature search for AI research agents
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | luneresearch.com | scispace.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 6.34K (6,340) | 4.46M (4,464,111) |
| MoM Traffic Delta |
| -2.47K (-28%) |
| +355.38K (+8.6%) |
| Primary Market & Share | 🇺🇸 United States (81.6%) | 🇺🇸 United States (13.2%) |
|---|
| Direct Visits / mo | 941 | 1.32M |
|---|
| User Rating | 4.3 | 4.6 |
|---|
| Supported Platforms | Website | Website |
|---|

Evidence-grounded literature search for AI research agents
Ask in plain language and Lune searches the full text of papers from top-tier venues all at once, rather than matching keywords against titles and abstracts.
See what a paper builds on and what later work builds on it, so you can place a result in its research lineage instead of treating it as an isolated claim.
Lune connects to Claude, ChatGPT and other MCP-capable clients, so your agent can pull real paper text and best-practice guidance mid-task.
Battle-tested guidance on novelty checks, baselines, ablations and reviewer expectations is surfaced at the moment it is relevant, not buried in a wiki.

AI research platform for reading, understanding and writing scientific papers
Open or upload a paper and ask questions, get plain-language explanations of highlighted passages, and pull out methods, results and limitations conversationally.
Search a large scholarly index spanning Google Scholar, PubMed and arXiv, then generate structured literature reviews and related-work sections from what you find.
An AI Writer for drafts, a paraphraser for academic tone, and a citation generator that formats references in popular styles.
Turn tables and results in a paper into structured data, and check whether a manuscript reads as AI-generated with a built-in detector.

SpecialistOffers broad general reasoning and document upload capabilities, but lacks specialized academic indexing and citation databases.

Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

Free / Open-sourceProvides a massive free index of scholarly literature with citation graphs, but lacks built-in interactive paper reading assistants.


Provides evidence-based answers extracted directly from peer-reviewed papers, though less of an all-in-one reading workspace.
Stronger automated data extraction and systematic review synthesis, but less focused on interactive PDF annotation than SciSpace.
SpecialistFocuses heavily on assisted academic drafting and autocomplete, whereas SciSpace centers more on reading and analysis.
Excels at tracking citation contexts and how papers cite each other, but has less robust general PDF chat features.

Map the literature around the papers you love—free
Explore the academic literature as a visual graph of related papers
Streamlines literature searches and reference management like SciSpace, but with a distinct citation workflow.
AI-powered platform to read, write, and stay current with research

Searches academic sources and generates literature reviews, but lacks some of SciSpace's advanced collaborative workspace features.
SpecialistOffers broad general reasoning and document upload capabilities, but lacks specialized academic indexing and citation databases.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Free / Open-sourceProvides a massive free index of scholarly literature with citation graphs, but lacks built-in interactive paper reading assistants.
Provides evidence-based answers extracted directly from peer-reviewed papers, though less of an all-in-one reading workspace.
Stronger automated data extraction and systematic review synthesis, but less focused on interactive PDF annotation than SciSpace.
SpecialistFocuses heavily on assisted academic drafting and autocomplete, whereas SciSpace centers more on reading and analysis.
Excels at tracking citation contexts and how papers cite each other, but has less robust general PDF chat features.
Map the literature around the papers you love—free
Explore the academic literature as a visual graph of related papers
Streamlines literature searches and reference management like SciSpace, but with a distinct citation workflow.
Searches academic sources and generates literature reviews, but lacks some of SciSpace's advanced collaborative workspace features.