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There’s a new large language model in town that threatens to out-open OpenAI’s ChatGPT. LLaMa 2, from Facebook parent company Meta, has capabilities roughly in line with big-name competitors. However, it’s also open source, meaning the model’s source code is available for anyone to study or build upon for free. OpenAI, Google and many other artificial intelligence innovators have opted to keep their latest models proprietary.\\xa0A more open approach has obvious benefits for research and enterprise but can also be advantageous for the companies that put these tools out. Marketplace’s Meghan McCarty Carino spoke with Tom Goldstein, a professor of computer science at the University of Maryland, about the advantages and disadvantages of the open-source approach.