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Perplexity AI, Inc. Perplexity AI is an AI chatbot -powered research and conversational search engine that answers queries using natural language predictive text. Launched in 2022, Perplexity generates answers using sources from the web and cites links within the text response. [ 2] Perplexity works on a freemium model; the free product uses ...
In the field of artificial intelligence (AI), a hallucination or artificial hallucination (also called bullshitting, [ 1][ 2] confabulation[ 3] or delusion[ 4]) is a response generated by AI which contains false or misleading information presented as fact. [ 5][ 6][ 7] This term draws a loose analogy with human psychology, where hallucination ...
The largest and most capable LLMs, as of June 2024, are built with a decoder-only transformer-based architecture, which enables efficient processing and generation of large-scale text data. Historically, up to 2020, fine-tuning was the primary method used to adapt a model for specific tasks.
Like a number of AI startups, Perplexity has managed to raise money in a tough environment. In 2023, $170.6 billion was invested across venture—that marks a decline of $71.6 billion from 2022 ...
San Francisco, California-based Perplexity AI in January raised $73.6 million from a group of investors including Nvidia and Amazon founder Jeff Bezos at a valuation of $520 million.
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 ...
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 ...
The artificial intelligence startup Perplexity AI has raised tens of millions of dollars from the likes of Jeff Bezos and other prominent tech investors for its mission to rival Google in the ...