Perplexity AI has launched two large-scale language models, pplx-7b-online and pplx-70b-online, which are expected to challenge Google's dominance in the web search sector. These models not only provide "useful, factual, and up-to-date information" but are also available for use by individuals and organizations. Perplexity's new models outperform the original ones from OpenAI and Meta, particularly in terms of "freshness" and "factuality." Perplexity's online language models are fee-based and have already gained recognition from some supporters.