Meta has unveiled the next version of large language model (LLM), the technology behind generative AI chatbots, as the tech giant looks to take on ChatGPT. Called Llama 3, Meta said the latest version of the model is smarter and faster, as well as supporting “improved reasoning.” It will first be integrated into Meta AI, the firm’s own virtual assistant, and one that Meta now claims is the “most intelligent AI assistant you can use for free” because of the additional power Llama 3 gives it. Meta is one of a number of big tech firms fighting to challenge market leader OpenAI, whose ChatGPT has …