OpenAI's GPT-4.5 was judged human 73% of the time in a new preprint Turing test study from UC San Diego researchers, easily beating actual humans when given a persona prompt. Without a persona, its success dropped to 36%, showing LLMs excel at convincing mimicry in short interactions.
Meta just introduced Llama 3.3 70B, a lightweight text model that delivers the punch of its massive 405B predecessor while running significantly cheaper. Armed with advanced post-training, it tops GPT-4o and Gemini 1.5 Pro on key benchmarks like MMLU, and is available for download right away.
Meta just rolled out a major upgrade to Meta AI, adding preview access to its flagship Llama 3.1 405B model alongside a new "Imagine me" stylized selfie feature. Users can now generate custom scenes starring themselves, though the 405B model requires manual switching and has weekly limits.
Meta just dropped its open-source Llama 3.1 family, headlined by a massive 405B model that rivals GPT-4o and Claude 3.5 Sonnet across key benchmarks. The entire lineup supports a 128K context window, and Meta has updated its license so developers can finally use 405B outputs to distill smaller models.
