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2. Perplexity.ai - Wikipedia

   en.wikipedia.org/wiki/Perplexity.ai

   Perplexity. Perplexity AI is an AI chatbot -powered research and conversational search engine that answers queries using natural language predictive text. [2] [3] Launched in 2022, Perplexity generates answers using sources from the web and cites links within the text response. [4] Perplexity works on a freemium model; the free product uses ...

3. Jeff Bezos’s investment in Perplexity AI has nearly ... - AOL

   www.aol.com/finance/jeff-bezos-investment...

   Founded in August 2022, Perplexity aims to challenge Google by offering an AI-based search engine that is “part chatbot and part search engine, offering real-time information and footnotes ...

4. Jeff Bezos–backed AI search startup’s CEO says ‘Google is ...

   www.aol.com/finance/jeff-bezos-backed-ai-search...

   On Thursday, San Francisco–based Perplexity announced that it has raised $73.6 million from a group of investors led by venture capital firm IVP and including Bezos, the $1.2 trillion AI chip ...

5. Search startup Perplexity AI valued at $520 million in ... - AOL

   www.aol.com/news/search-startup-perplexity-ai...

   (Reuters) -Search startup Perplexity AI has raised $73.6 million from a group of investors including Nvidia and Amazon founder Jeff Bezos, the latest example of investors hunting for AI startups ...

6. Perplexity - Wikipedia

   en.wikipedia.org/wiki/Perplexity

   The perplexity is the exponentiation of the entropy, a more straightforward quantity. Entropy measures the expected or "average" number of bits required to encode the outcome of the random variable using an optimal variable-length code. It can also be regarded as the expected information gain from learning the outcome of the random variable ...

7. Hallucination (artificial intelligence) - Wikipedia

   en.wikipedia.org/wiki/Hallucination_(artificial...

   In the field of artificial intelligence (AI), a hallucination or artificial hallucination (also called bullshitting, [1] confabulation [2] or delusion [3]) is a response generated by AI which contains false or misleading information presented as fact. [4] [5] [6] This term draws a loose analogy with human psychology, where hallucination ...

8. Perplexity AI’s challenge to Google hinges on something ...

   www.aol.com/finance/perplexity-ai-challenge...

   The AI search startup last week announced that it had raised $73.6 million in a funding round led by IVP and including Jeff Bezos, NEA, NVIDIA, Databricks, and Bessemer Venture Partners at a $520 ...

9. List of search engines - Wikipedia

   en.wikipedia.org/wiki/List_of_search_engines

   Desktop search product with Outlook plugin and limited support for other formats via IFilters, uses Lucene search engine. Proprietary (14-day trial) Nepomuk: Linux: Open-source semantic desktop search tool for Linux. Has been replaced by Baloo in KDE Applications from release 4.13 onward. License SA 3.0 and the GNU Free Documentation License 1. ...