NotebookLM vs Logically.app vs Elicit vs Perplexity AI: Which Vector Search Engine tool is Best in 2025?

All these tools NotebookLM , Logically.app , Elicit , Perplexity AI offer flexible pricing models suitable for seeking AI-powered solutions to enhance their Vector Search Engine efforts.

NotebookLM

Starting from
Beta version
Pricing Model:
  • Free - $0

Logically.app

Starting from
$3.99/month

Elicit

Starting from
$10/month
Pricing Model:
  • Basic - $0
  • Plus - $10 per month
  • Enterprises and Institutions - Custom

Perplexity AI

Starting from
$20/month

These AI tools are among the best Vector Search Engine tools available in 2025. For , tools like NotebookLM , Logically.app , Elicit , Perplexity AI help streamline the Vector Search Engine process by offering AI-powered features.

What is NotebookLM?

NotebookLM is an AI-powered research assistant developed by Google. It uses Google's Gemini 1.5 Pro model. It's designed to help users quickly extract information and insights from their documents. Users can easily import documents in various file formats.

What is Logically.app?

Logically.app formerly known as Afforai, is a research tool that helps find, summarize, and translate information from large documents. It allows customers to upload files with hundreds of pages, dynamically exchange the documents a chatbot is attached to, and provide inline citations. Its powerful mode complements AI's know-how of context and lets customers attach more than 20 documents in keeping with the chatbot. It also gives superior Google Search mode.

What is Elicit?

Elicit is an AI research assistant. Elicit can find relevant papers without a perfect keyword match, summarize takeaways from the paper specific to your question, and extract key information from the papers.

What is Perplexity AI?

Perple­xity AI is an incredible resource­ that you can chat with and use to explore the­ internet. It's more than just a tool - it's like­ having a knowledgeable companion who can he­lp you solve problems, spark new ide­as, and venture into the de­pths of information that were previously une­xplored. Moreover, it ke­eps you updated with the fre­shest info from platforms like YouTube and various database­s across the web. What's awesome­ is that it even tells you whe­re it sourced its information so you're assure­d of its credibility and can revisit any source if you wish. With Pe­rplexity AI, users can discover a whole­ new approach to learning, creating and conne­cting with the world.

NotebookLM
(4.8/5)
  • Accuracy and Reliability:
    4.9
  • Cost-Efficiency:
    4.8
  • Customization and Flexibility:
    4.9
  • Data Privacy and Security:
    4.8
  • Ease of Use:
    4.7
  • Functionality and Features:
    4.9
  • Integration Capabilities:
    4.6
  • Performance and Speed:
    4.5
  • Support and Resources:
    4.8
Logically.app
(4.8/5)
  • Accuracy and Reliability:
    4.8
  • Cost-Efficiency:
    4.9
  • Customization and Flexibility:
    4.9
  • Data Privacy and Security:
    4.8
  • Ease of Use:
    4.6
  • Functionality and Features:
    4.9
  • Integration Capabilities:
    4.8
  • Performance and Speed:
    4.5
  • Support and Resources:
    4.7
Elicit
(4.8/5)
  • Accuracy and Reliability:
    4.7
  • Cost-Efficiency:
    4.9
  • Customization and Flexibility:
    4.9
  • Data Privacy and Security:
    4.8
  • Ease of Use:
    4.7
  • Functionality and Features:
    4.8
  • Integration Capabilities:
    4.5
  • Performance and Speed:
    4.8
  • Support and Resources:
    4.7
Perplexity AI
  • No ratings found!
NotebookLM
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Logically.app
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Elicit
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Perplexity AI
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NotebookLM

Pros

Personalized Assistance

In-Line Citations

Privacy

Efficient Research

Collaborative Features

Cons

Dependence on Source Quality

Data Privacy Concerns

Compatibility Issues

Beta Status

Static Document Uploads

Not Enough Data!
Not Enough Data!

Perplexity AI

Pros

Conversational Search.

Comprehensive Answers.

Source Transparency.

Improving its responses and understanding of natural language over time.

User-Friendly Interface.

Cons

Perplexity AI is still under development.

It can encounter occasional bugs or glitches.

Accuracy Concerns.

Not alternatives Found!
NotebookLM
  • Google
  • Mountain View, California, United States
Logically.app
  • Afforai
  • Austin, Texas
Elicit
  • Not Data Available!
Perplexity AI
  • Perplexity
  • San Francisco, California, USA