Meta CEO Mark Zuckerberg swapped his designer jeans and T-shirt for a navy blue suit and tie Wednesday and sat down in front of a Los Angeles jury to answer questions about social media and teen mental health. The 41-year old Facebook founder faced a barrage of questions about Meta's business practices in his highly-anticipated court appearance (Meta and YouTube are both defendants in the case).

Zuckerberg pushed back at suggestions that Facebook and Instagram, both owned by Meta, regularly disregarded user safety and mental health, and he insisted that internal emails and other documents presented in the case were being taken out of context. "You’re mischaracterizing this," Zuckerberg responded more than a dozen times, according to the New York Times.

Here's a few other highlights, based on various media reports:

On policies about digital beauty filters for photos—“I genuinely want to err on the side of giving people the ability to express themselves."

On keeping under-13 users off the platform—“I don’t think we identified every single person who tried to get around restrictions, but you’re implying we weren’t trying to work on it, and that’s not true."

On his 2015 email setting a goal to increase user time by 12%—“We used to give teams goals on time spent and we don’t do that anymore because I don’t think that’s the best way to do it.”

On whether he believes people use something more if it's addictive—“I’m not sure what to say to that. I don’t think that applies here."

On his performance in previous testimonies in congressional hearings—"I think I'm actually well-known to be very bad at this."—AO

Google's Gemini app is getting a nifty new feature: AI music generation.

The company unveiled Lyria 3, a new version of its music generating tool, that will now be integrated directly into the Gemini AI app (initially available in certain countries, and, for reasons unclear, only for users 18 and over). The AI tool can create 30-second musical tracks based on a user's text prompts ("Create a song about an intoxicated anteater with a funky beat and lots of cowbells") or based on an uploaded photo or video. 

Google says the latest version of Lyria gives users more control over things like tempo, style, and vocals, along with automatic lyric creation and "more realistic and musically complex tracks.")

An informal survey of reactions on social media and Reddit showed excitement for Lyria's improvements, a range of views about how it stacks up to Suno V5, lamentations about AI replacing human creativity, and quips that even AI is better than today's pop music.—AO