TL;DR: OpenAI’s ChatGPT has added voice and image prompting for plus users, coming to everyone else “soon after”. You can now ask questions by speaking or uploading images. It uses advanced text-to-speech and image recognition technology, but with controlled limitations to prevent misuse.
At least for free accounts you either have history chat and allow use of your data for training or reject both. Probably same with this new type of data.