The tech powering ChatGPT won't make AI as smart as humans. Others might.

The transformer technology powering tools like ChatGPT may have limitations.

FLORENCE LO/Reuters

• ChatGPT changed the conversation about AI.
• But the tech powering it has limitations and may struggle to make AI that is as smart as humans.
• Researchers are now looking at alternatives. 

The groundbreaking work of a bunch of Googlers in 2017 introduced the world to transformers — neural networks that power popular AI products today.

They power the large-language model...