Google apologized Friday for a series of public mishaps by its artificial intelligence tool Gemini, which was denounced by some users this week after it generated historically inaccurate images such as nonwhite Nazi soldiers. The company said in a blog post that it was still working on a fix for the app and was continuing to temporarily block the creation of new images of people until a solution is in place. “It’s clear that this feature missed the mark,” Prabhakar Raghavan, a senior vice president at Google, wrote in the blog post. “Some of the images generated are inaccurate or...