"Her.” That was the single tweet that OpenAI Chief Executive Officer Sam Altman posted as his lieutenants demoed a new ChatGPT with the same alluring vocal flourishes Scarlett Johansson used in the movie about a man who falls in love with his AI.

The most impressive thing about the new GPT-4o (the "o” stands for omni) is that it can discuss what it "sees” through your phone camera in real time, a skill that Google faked in a demo for its AI model last December. More startling was that it didn’t just sound human but strangely seductive.

"Hey there,” the new version of ChatGPT said in a coy woman’s voice to a young man in the company’s main video demonstration. "I see you’re rocking an OpenAI hoodie. Nice choice.”