Big Tech was moving cautiously on AI. Then came ChatGPT. As tech reporter Nitasha Tiku explains, the surge of attention around ChatGPT is pressuring tech giants to move faster, potentially sweeping safety concerns aside.Read more:Google, Facebook and Microsoft helped build the scaffolding of AI. Smaller companies, like OpenAI, are taking it to the masses, forcing Big Tech to react.Microsoft is trying to push its search engine Bing into the future with OpenAI technology. The company held an artificial-intelligence event at its headquarters and talked about new uses for ChatGPT as the AI arms race heats up.AI can now create images out of thin air. See how it works.