To build an app, you start with an initial prompt and Spark will show you a live preview within a few seconds. From there, you can fine-tune the app and iterate by going back and forth with the bot.

I’m not a programmer. But I’ve been creating my own software tools with help from artificial intelligence.

Google is testing a new vibe-coding tool called Opal, available in the U.S. through Google Labs, that lets users quickly spin up web apps with just a few prompts.