With Copilot, you can bypass a ChatGPT Plus subscription and get unlimited, free access to OpenAI's o1 model and Voice feature.

In some challenges, the GPT-4-based model triumphed. In others, it failed. How do you know when to count on it?

The launch comes just days after Musk’s failed $97.4 billion bid to acquire OpenAI, the company he co-founded with Sam Altman in 2015. During a livestreamed demonstration on X, Musk ...