The best way to avoid echo chambers is to actively seek out a mix of perspectives, even the ones you don’t agree with. But only very intelligent people do this. A tool like this can help by providing multiple sources and showing different sides.

However, this tool doesn't let you ask questions or dig deeper into the context, it's mostly summaries and headlines. Asking questions is actually one of the best ways to avoid echo chambers. But then again, whoever controls the model controls the narrative. That's exactly why Google and Microsoft have poured billions into this tech. Without Microsoft's infra (and "the Gates demo"), ChatGPT probably wouldn't even exist, or it'd just be another research project.

The only downside I see in trying to improve news is that news conglomerates often sue developers or big tech companies. Google, for example, was sued over its Google News operations.