scispace vs. perplexity

scispace vs. perplexity which is better? How does Knowledgie compare?

People switch from scispace and perplexity to Knowledgie because it focused on academic research and is much easier to use. Knowledgie is the number 1 research assistant for students, academic and scientific researchers. You can extract data and summaries by chatting with your research papers pdfs and library.
xLaunch Demo

What is SciSpace ?

SciSpace is not just another AI tool. It's a powerhouse designed to break down intricate research papers into simple, digestible insights.

Think of it as your personal research assistant, ready to help you understand complex scientific concepts without the jargon.

Features of SciSpace Copilot

  1. Technical Terms and Explanations

    • Highlight any technical term and select Explain. SciSpace will provide a simple definition.

  2. Follow-Up Questions

    • Still confused? Click Follow up for more in-depth explanations.

  3. Citation Generator

    • Generate citations in various formats by pasting a URL or adding text manually.

  4. AI-Powered Tools

    • AI Detector: Ensures your content is free from AI-generated text.

    • Copilot Read: Summarizes lengthy papers, saving you tons of time.

  5. Analyzing Papers

    • Get concise explanations of research papers in seconds. Use preset questions to focus on the important parts.

  6. Paraphrasing Tool

    • Need to rephrase text? SciSpace can humanize your content, making it sound more natural.

Is SciSpace Safe to Use?

Absolutely. SciSpace is designed to simplify scientific literature, making it accessible to everyone.

However, always credit original authors when using the paraphrasing tool to avoid plagiarism.


Currently, SciSpace has a generous free plan. However to access premium features, such as a more capable AI model, it will cost $20 per month.

What is Perplexity AI?

Perplexity AI is not just another search engine. Launched in August 2022 and headquartered in the tech hub of San Francisco, this AI-powered search engine is the brainchild of Aravind Srinivas, Denis Yarats, Johnny Ho, and Andy Konwinski. Think of it as the love child of Wikipedia and ChatGPT—only smarter, faster, and more conversational.

Features? Oh, It's Packed!

  1. Conversational Search: Unlike traditional search engines that give you a list of links, Perplexity AI provides you with direct answers, explained in natural language. It even cites its sources, so you know where the information is coming from.

  2. Multiple LLMs: The free version uses OpenAI's GPT-3.5, but the Pro version? It’s like a buffet of AI models—GPT-4, Claude 3, Mistral Large, Llama 3, and more. You can switch between these models to get the best results.

  3. Focus Mode: Want to dig deeper? Use the Focus mode to fine-tune your search and streamline sources. It's like having a personal research assistant.

  4. Follow-up Questions: Perplexity remembers the context of your queries. Ask a follow-up question, and it will interpret it in the same context, saving you the hassle of rephrasing.

  5. Document Uploads: Yes, you can upload your own PDFs, CSVs, images, and more for analysis. Imagine uploading a complex dataset and getting an instant summary. Mind-blowing, right?

  6. Multimodal Capabilities: The Pro version can generate text, images, and even simple code. Talk about versatility!

Pricing—What’s the Damage?

Perplexity AI operates on a freemium model:

  1. Free Version: No account needed. Offers basic searches using GPT-3.5, with a limit of three uploads per day.

  2. Pro Version: $20 per month or $200 per year. You get access to multiple AI models, 600 queries per day, and the ability to upload various file types.

  3. Enterprise Pro: Flexible pricing based on team size. Includes advanced admin features, user management, enhanced security, and more.

Pros and Cons


  1. Easy to use

  2. Powerful free version

  3. Conversational style

  4. Source citations

  5. Flexibility with multiple LLMs

  6. Ability to create collections


  1. Occasionally returns questionable information

  2. Some responses can be repetitive

  3. Vulnerable to hallucinations affecting third-party LLMs

Knowledgie vs. SciSpace

Lets dive deep into a comparison between two popular AI research assistants: Knowledgie and SciSpace Copilot. Let's break it down and see why Knowledgie stands out as the superior choice.

Simplicity of Use: Knowledgie Takes the Crown

Navigating an AI tool shouldn’t feel like deciphering a complex scientific paper.

Knowledgie understands this, offering an intuitive, user-friendly interface that gets you up and running in no time.

Whether you're a graduate student or a seasoned researcher, Knowledgie’s simplicity ensures you focus on what matters—your research.

On the other hand, SciSpace Copilot demands a bit more effort to set up. The process involves creating an account, verifying it through email, and familiarizing yourself with a plethora of features.

While comprehensive, this can be overwhelming for users seeking a straightforward experience.


  • Interface: Clean, intuitive, and designed for easy navigation.

  • Focus: Academic rigor combined with simplicity.

SciSpace Copilot:

  • Interface: Feature-rich but cluttered, requiring a learning curve.

  • Focus: Detailed but potentially overwhelming.

Pricing: Transparent and Affordable

Pricing is a critical factor, especially for students and researchers on a budget. Knowledgie offers a clear, affordable pricing structure:


  • Free Plan: Unlimited searches, 7 answers per month, 500MB PDF storage.

  • Pro Plan: $7.5/month (billed annually) or $15/month (billed monthly).

SciSpace Copilot:

  • Free: Currently, SciSpace offers its features for free . However, the model used by free.

  • Pro Plan: $12/month (billed annually) or $20/month (billed monthly).

Knowledgie’s pricing is transparent and provides excellent value for money, ensuring you get premium features without breaking the bank. vs. Knowledgie: A Detailed Comparison

User Interface and Simplicity The interface is user-friendly and designed for general web searches. It’s more akin to a conversational search engine with a focus on natural language processing. However, it may require some learning curve for those unfamiliar with LLMs and AI chatbots.

Knowledgie: Simplicity is the key here. The platform is straightforward, designed to be intuitive for students and researchers. You don’t need to be tech-savvy to use it effectively. Just ask your questions, and get answers backed by academic sources.

Quality of Information Provides answers with citations from a variety of web sources, which can sometimes be a mix of reliable and less reliable information.

Knowledgie: Every answer is backed by quality research papers, ensuring the information is credible and academically sound. This is crucial for anyone involved in serious academic work.

Focus and Specialization General-purpose AI search engine suitable for a wide range of queries, including generating content and images.

Knowledgie: Specializes in academic and scientific research. It combines the academic rigor of Google Scholar with the conversational ease of ChatGPT.


  • Free: Basic search functionalities.

  • Pro: $20 per month or $200 per year. Provides access to advanced features and multiple LLMs.


  • Free: Unlimited paper searches, 7 answers per month, 500MB PDF storage.

  • Pro: $7.5 per month (billed annually) or $15 per month (billed monthly). Offers unlimited searches, 1200 answers, 600 chats with PDFs, and unlimited PDF storage.

Additional Features Offers image generation and API access for developers. It also has a new enterprise version with added features for businesses.

Knowledgie: Focuses on enhancing the research process. Features like chatting with PDFs, organizing a personal library, and comprehensive answer citations are game-changers for researchers.

Why Knowledgie is Better for Academics

  1. Simplicity: The user-friendly interface is perfect for students and researchers who want quick, reliable answers without the hassle.

  2. Academic Focus: Tailored to meet the needs of academics, with answers backed by a vast database of research papers.

  3. Affordability: More budget-friendly pricing plans compared to, making it accessible to students.

  4. Enhanced Research Tools: Tools like PDF interaction, library management, and natural language search make it a comprehensive platform for academic research.

Why Knowledgie is better than Competiton?


Get Answers and highly relevant research papers using sentences, not keywords.

  • No need to construct clever keywords to get answers or find papers. Use full sentences
  • Get answers backed by quality research papers.
  • Get a list of relevant papers from our database of 210 million, so that you can dig deeper.

Dig deeper into individual papers by chatting with them.

  • Ask questions from large PDFs and get answers instead of skimming.
  • Every response is backed by sources extracted from the research paper.
chat pdf

Build a personal library. Search from your library using full sentences.

  • Save pdfs you discover on Knowledgie.
  • Upload more pdfs to your library.
  • Search your library using natural language; chat and get answers from your entire library
  • Get unlimited PDF storage.

Ready to dive in? Try Knowledgie for free.

Getting started is easy and takes a couple of minutes only. No credit card required. No hidden fees. 1 month money back guarantee.
Launch Demo