Summary Stanford’s Alpaca was just the beginning: In recent weeks, several AI models have been unveiled using training data generated by ChatGPT. In mid-March, Stanford researchers unveiled the Alpaca language model, a variant of Meta’s LLaMA 7B that was fine-tuned with AI-generated data. The team trained the LLaMA model with 52,000 example statements generated by …
Summary After Alpaca comes Vicuna, an open-source chatbot that, according to its developers, is even closer to ChatGPT’s performance. Vicuna follows the “Alpaca formula” and uses ChatGPT’s output to fine-tune a large language model from Metas LLaMA family. The team behind Vicuna includes researchers from UC Berkeley, CMU, Stanford, and UC San Diego. While Alpaca …
GPT-4 likes this chatbot almost as much as ChatGPT Read More »
Summary PAC-NeRF demonstrates how NeRFs can learn the geometric structure and physical properties of objects from video. Neural radiance fields (NeRFs) are a powerful AI-based rendering technology that can be used for video production, 3D reconstruction, and other tasks. They learn to represent and render the geometric structure and lighting of scenes and objects from …
PAC-NeRF learns physical properties of objects from videos Read More »
Summary Using a game manual, an AI learned an old Atari game several thousand times faster than with older methods. This approach could be useful in other areas as well. In March 2020, DeepMind scientists unveiled Agent57, the first deep reinforcement learning (RL)-trained model to outperform humans in all 57 Atari 2600 games. For the …
Summary Google is rolling out Med-PaLM 2 on a limited basis for initial testing. Update April 14, 2023: Google Cloud announces that Med-PaLM 2 will be rolled out to select Google Cloud customers for a “limited test” in the coming weeks. The goal, the company says, is to explore safe, responsible and meaningful use scenarios. …
Google’s medical language model “Med-PaLM 2” enters pilot phase with first customers Read More »
Summary Characters in video games could soon feel even more realistic. But these AI sims could also be helpful outside of gaming. In a new paper, researchers from Google and Stanford University simulate human behavior using large-scale language models. The paper, titled “Generative Agents: Interactive Simulacra of Human Behavior” relies on ChatGPT and offers more …
Sims running on ChatGPT are a glimpse into the social future of AI Read More »
Summary All generative AI models for images currently use diffusion models. OpenAI presents an alternative that is significantly faster and could power new models like DALL-E 3. DALL-E 2, Stable Diffusion, or Midjourney use diffusion models that gradually synthesize an image from noise during image generation. The same iterative process is used in audio or …
Here’s how OpenAI’s DALL-E 3 could leapfrog the competition Read More »
Summary A new beta version of Stable Diffusion delivers much more aesthetic and photorealistic results than the previous version. Will this make commercial offerings obsolete? While Stable Diffusion is the most developed open-source image model, it can’t always match the quality and especially the accessibility of commercial competitors like Midjourney. Its strength so far is …
