Microsoft on Wednesday announced the preview release of its new Bing app for iPhone and Android which includes new features like access to its AI chatbot.

The move will limit some scenarios where long chat sessions can “confuse” the chat model, the company said in a blog post.

Artificial intelligence experts warned that large language models have issues including “hallucination,” which means that the software can make stuff up.

In showing off its chatbot technology last week, Microsoft’s AI analyzed earnings reports and produced some incorrect numbers for Gap and Lululemon.

At least seven people, including the suspect, were killed at the Walmart Supercenter in Chesapeake, Virginia.