We’ve developed a hierarchical reinforcement learning algorithm that learns high-level actions useful for solving a range of tasks, allowing fast solving of tasks requiring thousands of timesteps. Our algorithm, when applied to a set of navigation problems, discovers a set of high-level actions for walking and crawling in different directions, which enables the agent to master new navigation tasks quickly. Details: https://blog.openai.com/learning-a-hierarchy/ Code: https://github.com/openai/mls

6.2K views · 79 reactions | Developed by OpenAI, DALL-E is an AI program trained to generate images from text descriptions. It was originally launched back in January of 2021, but now the second generation of the artificial intelligence system, DALL-E 2 is in the works. DALL-E 2 is not yet publicly available, but features some impressive new upgrades including a 4x greater image resolution allowing it to generate photorealistic images. | Mashable | Facebook