This week in AI - all the Major AI developments in a nutshell

1. **Microsoft** **Research** released ***Phi-2*** , a 2.7 billion-parameter language model. Phi-2 surpasses larger models like 7B Mistral and 13B Llama-2 in benchmarks, and outperforms 25x larger Llama-2-70B model on muti-step reasoning tasks, i.e., coding and math. Phi-2 matches or outperforms the recently-announced Google Gemini Nano 2 \[[*Details*](https://www.microsoft.com/en-us/research/blog/phi-2-the-surprising-power-of-small-language-models) *|* [***Hugging Face***](https://huggingface.co/microsoft/phi-2)\].
2. **University of Tokyo** researchers have built ***Alter3***, a humanoid robot powered by GPT-4 that is capable of generating spontaneous motion. It can adopt various poses, such as a …

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