
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SciSpace records 4,464,111 monthly visits with +8.6% month-over-month growth and Freemium pricing. Wikis.ai records 1,703 monthly visits with -21.6% growth and Freemium pricing.
Ask once, compare the best AI models.
| Dimension / Metric | ![]() | |
|---|---|---|
| Official Domain | scispace.com | wikis.ai |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 4.46M (4,464,111) | 1.7K (1,703) |
| MoM Traffic Delta | +355.38K (+8.6%) | -468 (-21.6%) |
| Primary Market & Share | 🇺🇸 United States (13.2%) | 🌐 Global (—) |
| Direct Visits / mo | 1.32M | 520 |
| User Rating | 4.6 | 4.1 |
| Supported Platforms | Website | Website |

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.
Ask once, compare the best AI models.
Send a single prompt to multiple models like GPT, Claude, Gemini, Grok and DeepSeek, then scan their answers in a stable side-by-side grid instead of juggling tabs.
A dedicated research mode explores the web in real time, gathers primary sources and reviews, and assembles a structured report with inspectable citations.
See where models agree and where they diverge, using consensus as a confidence signal while keeping each model's distinct nuance visible.
An editorially structured library of explainers on AI fundamentals, models, marketing, audio and more, each of which you can continue as a chat with any model.

OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
OpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
Real-time AI answer engine and research workspace combining live web citations with frontier reasoning models.

Moonshot AI's long-context assistant for research, coding, and agentic work

Free / Open-sourceProvides a massive free index of scholarly literature with citation graphs, but lacks built-in interactive paper reading assistants.
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.
Provides evidence-based answers extracted directly from peer-reviewed papers, though less of an all-in-one reading workspace.
Computational knowledge engine for expert answers

Chat with 30+ leading AI models in one clean, fast workspace
Chat with 30+ leading AI models in one clean, fast workspace
Stronger automated data extraction and systematic review synthesis, but less focused on interactive PDF annotation than SciSpace.
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.
SpecialistFocuses heavily on assisted academic drafting and autocomplete, whereas SciSpace centers more on reading and analysis.
Chat with any PDF, video, or website and get cited answers in seconds
One subscription, many AI models — chat, search, analyze files and links
One subscription, many AI models — chat, search, analyze files and links
Excels at tracking citation contexts and how papers cite each other, but has less robust general PDF chat features.
Excels at tracking citation contexts and how papers cite each other, but has less robust general PDF chat features.