Chinese AI Startup DeepSeek Overtakes ChatGPT on Apple App Store

ChatGPT logo is seen in this illustration taken, January 22, 2025. REUTERS/Dado Ruvic/Illustration/File Photo
ChatGPT logo is seen in this illustration taken, January 22, 2025. REUTERS/Dado Ruvic/Illustration/File Photo
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Chinese AI Startup DeepSeek Overtakes ChatGPT on Apple App Store

ChatGPT logo is seen in this illustration taken, January 22, 2025. REUTERS/Dado Ruvic/Illustration/File Photo
ChatGPT logo is seen in this illustration taken, January 22, 2025. REUTERS/Dado Ruvic/Illustration/File Photo

Chinese startup DeepSeek's AI Assistant on Monday overtook rival ChatGPT to become the top-rated free application available on Apple's App Store in the United States.

Powered by the DeepSeek-V3 model, which its creators say "tops the leaderboard among open-source models and rivals the most advanced closed-source models globally", the artificial intelligence application has surged in popularity among US users since it was released on Jan. 10, according to app data research firm Sensor Tower.

The milestone highlights how DeepSeek has left a deep impression on Silicon Valley, upending widely held views about US primacy in AI and the effectiveness of Washington's export controls targeting China's advanced chip and AI capabilities, Reuters reported.

AI models from ChatGPT to DeepSeek require advanced chips to power their training. The Biden administration has since 2021 widened the scope of bans designed to stop these chips from being exported to China and used to train Chinese firms' AI models.

However, DeepSeek researchers wrote in a paper last month that the DeepSeek-V3 used Nvidia's H800 chips for training, spending less than $6 million.

Although this detail has since been disputed, the claim that the chips used were less powerful than the most advanced Nvidia products Washington has sought to keep out of China, as well as the relatively cheap training costs, has prompted US tech executives to question the effectiveness of tech export controls.

Little is known about the company behind DeepSeek, a small Hangzhou-based startup founded in 2023, when search engine giant Baidu released the first Chinese AI large-language model.

Since then, dozens of Chinese tech companies large and small have released their own AI models, but DeepSeek is the first to be praised by the US tech industry as matching or even surpassing the performance of cutting-edge US models.



Instagram Boss to Testify at Social Media Addiction Trial 

The Instagram app icon is seen on a smartphone in this illustration taken October 27, 2025. (Reuters)
The Instagram app icon is seen on a smartphone in this illustration taken October 27, 2025. (Reuters)
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Instagram Boss to Testify at Social Media Addiction Trial 

The Instagram app icon is seen on a smartphone in this illustration taken October 27, 2025. (Reuters)
The Instagram app icon is seen on a smartphone in this illustration taken October 27, 2025. (Reuters)

Instagram chief Adam Mosseri is to be called to testify Wednesday in a Los Angeles courtroom by lawyers out to prove social media is dangerously addictive by design to young, vulnerable minds.

YouTube and Meta -- the parent company of Instagram and Facebook -- are defendants in a blockbuster trial that could set a legal precedent regarding whether social media giants deliberately designed their platforms to be addictive to children.

Rival lawyers made opening remarks to jurors this week, with an attorney for YouTube insisting that the Google-owned video platform was neither intentionally addictive nor technically social media.

"It's not social media addiction when it's not social media and it's not addiction," YouTube lawyer Luis Li told the 12 jurors during his opening remarks.

The civil trial in California state court centers on allegations that a 20-year-old woman, identified as Kaley G.M., suffered severe mental harm after becoming addicted to social media as a child.

She started using YouTube at six and joined Instagram at 11, before moving on to Snapchat and TikTok two or three years later.

The plaintiff "is not addicted to YouTube. You can listen to her own words -- she said so, her doctor said so, her father said so," Li said, citing evidence he said would be detailed at trial.

Li's opening arguments followed remarks on Monday from lawyers for the plaintiffs and co-defendant Meta.

On Monday, the plaintiffs' attorney Mark Lanier told the jury YouTube and Meta both engineer addiction in young people's brains to gain users and profits.

"This case is about two of the richest corporations in history who have engineered addiction in children's brains," Lanier said.

"They don't only build apps; they build traps."

But Li told the six men and six women on the jury that he did not recognize the description of YouTube put forth by the other side and tried to draw a clear line between YouTube's widely popular video app and social media platforms like Instagram or TikTok.

YouTube is selling "the ability to watch something essentially for free on your computer, on your phone, on your iPad," Li insisted, comparing the service to Netflix or traditional TV.

Li said it was the quality of content that kept users coming back, citing internal company emails that he said showed executives rejecting a pursuit of internet virality in favor of educational and more socially useful content.

- 'Gateway drug' -

Stanford University School of Medicine professor Anna Lembke, the first witness called by the plaintiffs, testified that she views social media, broadly speaking, as a drug.

The part of the brain that acts as a brake when it comes to having another hit is not typically developed before a person is 25 years old, Lembke, the author of the book "Dopamine Nation," told jurors.

"Which is why teenagers will often take risks that they shouldn't and not appreciate future consequences," Lembke testified.

"And typically, the gateway drug is the most easily accessible drug," she said, describing Kaley's first use of YouTube at the age of six.

The case is being treated as a bellwether proceeding whose outcome could set the tone for a wave of similar litigation across the United States.

Social media firms face hundreds of lawsuits accusing them of leading young users to become addicted to content and suffer from depression, eating disorders, psychiatric hospitalization, and even suicide.

Lawyers for the plaintiffs are borrowing strategies used in the 1990s and 2000s against the tobacco industry, which faced a similar onslaught of lawsuits arguing that companies knowingly sold a harmful product.


OpenAI Starts Testing Ads in ChatGPT

The OpenAI logo is seen in this illustration taken May 20, 2024. (Reuters)
The OpenAI logo is seen in this illustration taken May 20, 2024. (Reuters)
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OpenAI Starts Testing Ads in ChatGPT

The OpenAI logo is seen in this illustration taken May 20, 2024. (Reuters)
The OpenAI logo is seen in this illustration taken May 20, 2024. (Reuters)

OpenAI has begun placing ads in the basic versions of its ChatGPT chatbot, a bet that users will not mind the interruptions as the company seeks revenue as its costs soar.

"The test will be for logged-in adult users on the Free and Go subscription tiers" in the United States, OpenAI said Monday. The Go subscription costs $8 in the United States.

Only a small percentage of its nearly one billion users pay for its premium subscription services, which will remain ad-free.

"Ads do not influence the answers ChatGPT gives you, and we keep your conversations with ChatGPT private from advertisers," the company said.

Since ChatGPT's launch in 2022, OpenAI's valuation has soared to $500 billion in funding rounds -- higher than any other private company. Some analysts expect it could go public with a trillion-dollar valuation.

But the ChatGPT maker burns through cash at a furious rate, mostly on the powerful computing required to deliver its services.

Its chief executive Sam Altman had long expressed his dislike for advertising, citing concerns that it could create distrust about ChatGPT's content.

His about-face garnered a jab from its rival Anthropic over the weekend, which made its advertising debut at the Super Bowl championship with commercials saying its Claude chatbot would stay ad-free.


Social Media ‘Addicting the Brains of Children,’ Plaintiff’s Lawyer Argues in Landmark Trial

Teenagers pose for a photo while holding smartphones in front of a Meta logo in this illustration taken September 11, 2025. (Reuters)
Teenagers pose for a photo while holding smartphones in front of a Meta logo in this illustration taken September 11, 2025. (Reuters)
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Social Media ‘Addicting the Brains of Children,’ Plaintiff’s Lawyer Argues in Landmark Trial

Teenagers pose for a photo while holding smartphones in front of a Meta logo in this illustration taken September 11, 2025. (Reuters)
Teenagers pose for a photo while holding smartphones in front of a Meta logo in this illustration taken September 11, 2025. (Reuters)

Comparing social media platforms to casinos and addictive drugs, lawyer Mark Lanier delivered opening statements Monday in a landmark trial in Los Angeles that seeks to hold Instagram owner Meta and Google's YouTube responsible for harms to children who use their products.

Instagram's parent company Meta and Google's YouTube face claims that their platforms addict children through deliberate design choices that keep kids glued to their screens. TikTok and Snap, which were originally named in the lawsuit, settled for undisclosed sums.

Jurors got their first glimpse into what will be a lengthy trial characterized by dueling narratives from the plaintiffs and the two remaining defendants.

Meta lawyer Paul Schmidt spoke of the disagreement within the scientific community over social media addiction, with some researchers believing it doesn’t exist, or that addiction is not the most appropriate way to describe heavy social media use.

‘Addicting the brains of children’

Lanier, the plaintiff's lawyer, delivered lively first remarks where he said the case will be as “easy as ABC” — which stands for “addicting the brains of children.” He said Meta and Google, “two of the richest corporations in history,” have “engineered addiction in children’s brains.”

He presented jurors with a slew of internal emails, documents and studies conducted by Meta and YouTube, as well as YouTube’s parent company, Google. He emphasized the findings of a study Meta conducted called “Project Myst” in which they surveyed 1,000 teens and their parents about their social media use.

The two major findings, Lanier said, were that Meta knew children who experienced “adverse events” like trauma and stress were particularly vulnerable for addiction; and that parental supervision and controls made little impact.

He also highlighted internal Google documents that likened some company products to a casino, and internal communication between Meta employees in which one person said Instagram is “like a drug” and they are “basically pushers.”

At the core of the Los Angeles case is a 20-year-old identified only by the initials “KGM,” whose case could determine how thousands of other, similar lawsuits against social media companies will play out. She and two other plaintiffs have been selected for bellwether trials — essentially test cases for both sides to see how their arguments play out before a jury.

Plaintiff grew up using YouTube, Instagram

KGM made a brief appearance after a break during Lanier’s statement and she will return to testify later in the trial. Lanier spent time describing KGM's childhood, focusing particularly on what her personality was like before she began using social media.

She started using YouTube at age 6 and Instagram at age 9, Lanier said. Before she graduated elementary school, she had posted 284 videos on YouTube.

The outcome of the trial could have profound effects on the companies' businesses and how they will handle children using their platforms.

Lanier said the companies’ lawyers will “try to blame the little girl and her parents for the trap they built,” referencing the plaintiff. She was a minor when she said she became addicted to social media, which she claims had a detrimental impact on her mental health.

Lanier said that despite the public position of Meta and YouTube being that they work to protect children, their internal documents show an entirely different position, with explicit references to young children being listed as their target audiences.

The attorney also drew comparisons between the social media companies and tobacco firms, citing internal communication between Meta employees who were concerned about the company’s lack of proactive action about the potential harm their platforms can have on children and teens.

“For a teenager, social validation is survival,” Lanier said. The defendants “engineered a feature that caters to a minor’s craving for social validation,” he added, speaking about “like” buttons and similar features.

Meta pushes back

In his opening statement representing Meta, Schmidt said the core question in the case is whether the platforms were a substantial factor in KGM’s mental health struggles. He spent much of his time going through the plaintiff’s health records, emphasizing that she had experienced many difficult circumstances in her childhood, including emotional abuse, body image issues and bullying.

Schmidt presented a clip from a video deposition from one of KGM‘s mental health providers, Dr. Thomas Suberman, who said social media was “not the through-line of what I recall being her main issues,” adding that her struggles seemed to largely stem from interpersonal conflicts and relationships.

He painted a picture — with KGM’s own text messages and testimony pointing to a volatile home life — of a particularly troubled relationship with her mother.

Schmidt acknowledged that many mental health professionals do believe social media addiction can exist, but said three of KGM’s providers — all of whom believe in the form of addiction — have never diagnosed her with it, or treated her for it.

Schmidt stressed to the jurors that the case is not about whether social media is a good thing or whether teens spend too much time on their phones or whether the jurors like or dislike Meta, but whether social media was a substantial factor in KGM’s mental health struggles.

A reckoning for social media and youth harms

A slew of trials beginning this year seek to hold social media companies responsible for harming children's mental well-being. Executives, including Meta CEO Mark Zuckerberg, are expected to testify at the Los Angeles trial, which will last six to eight weeks.

Experts have drawn similarities to the Big Tobacco trials that led to a 1998 settlement requiring cigarette companies to pay billions in health care costs and restrict marketing targeting minors.

A separate trial in New Mexico, meanwhile, also kicked off with opening statements on Monday. In that trial, Meta is accused of failing to protect young users from sexual exploitation, following an undercover online investigation. Attorney General Raúl Torrez in late 2023 sued Meta and Zuckerberg, who was later dropped from the suit.

A federal bellwether trial beginning in June in Oakland, California, will be the first to represent school districts that have sued social media platforms over harms to children.

In addition, more than 40 state attorneys general have filed lawsuits against Meta, claiming it is harming young people and contributing to the youth mental health crisis by deliberately designing features on Instagram and Facebook that addict children to its platforms. The majority of cases filed their lawsuits in federal court, but some sued in their respective states.

TikTok also faces similar lawsuits in more than a dozen states.