On an airstrip somewhere in Texas, a swarm of killer jets approaches—controlled by, of all things, a large language model.

The chatbot will remember what you told it in the past, rather than starting fresh with each new conversation. Don't worry: You can edit what it 'knows' about you.

I pushed eight free AI chatbots to their limits, from writing stories to generating images, to build ZDNET's chatbot-by-chatbot guide to help you decide which is right for you.