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CEO Jack Dorsey issues a dire warning about AI’s impact as he cuts Block by almost half

Block CEO Jack Dorsey issued a warning about the impact of AI on employment, particularly for other companies

After announcing he’s cutting about 40% of Block’s 11,000 employees, Dorsey outlined Block’s next phase as a “smaller, faster, intelligence-native company” in his opening remarks during the company’s earnings call on Thursday.

“I don’t think we’re early to this realization. I think most companies are late,” he said.

AI, he said, is dramatically accelerating work inside Block.

“A significantly smaller team using the tools we’re building can do more and do it better. And intelligence tool capabilities are compounding faster every single week,” Dorsey said

Dorsey pointed to a sharp jump in AI capabilities late last year, surpassing Block’s own internal tool, Goose, which it uses to speed up coding and other repetitive work.

“Something happened in December last year where the models just got an order of magnitude more capable and more intelligent,” he said.

Dorsey predicted more companies will follow suit, using AI to drive efficiency gains. Block, he said, is moving ahead of a trend that “all companies will eventually” embrace.

The Bay Area tech company, which owns Square, Cash App, and Tidal, had “a lot of duplication” that needed to be streamlined, Dorsey said.

Block CFO Amrita Ahuja said that at Block, engineering work that would have taken weeks now takes a fraction of the time thanks to AI coding tools.

Output per engineer is up by more than 40% since September, she added.

Although Block is shedding over 4,000 people from its 10,000-strong workforce, it’s expanding in one area — senior engineering talent focused on AI, Ahuja said.




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Alistair Barr, global tech editor of Business Insider, smiles at the camera while wearing a blue and white striped shirt.

4 founders share how AI’s ‘Second Wave’ promises apps that create entirely new experiences

For the past three years, AI has been mostly a cost-cutting tool. A growing number of founders and investors are trying to move beyond that era.

The next chapter of AI, they argue, will be defined by new kinds of products — apps, games, companions, and services that simply couldn’t exist before large language models. They call it AI’s “Second Wave.”

“The first wave of AI made existing things cheaper. Automation. Efficiency,” said Kylan Gibbs, a former Google DeepMind product manager who runs AI startup Inworld. “The next wave makes things that couldn’t exist before. New products. New experiences. New revenue. That’s the difference between optimizing spend and creating it.”

For Gibbs, that distinction is existential. If AI merely trims costs, it reshuffles value within existing businesses. If it enables entirely new consumer products — ones people will pay for — it expands the economic pie.

“AI reaches its real economic potential when it creates value consumers want to pay for, not just value businesses want to save,” he wrote on LinkedIn. That next phase, he says, requires a new “consumer-scale AI stack”: real-time responses under 300 milliseconds, support for millions of users simultaneously, and deeply personal experiences tailored to individual preferences.


Kylan Gibbs, CEO and cofounder of Inworld

Kylan Gibbs, CEO and cofounder of Inworld.

Inworld



In January, Gibbs launched a Silicon Valley accelerator to back up to 30 “Second Wave” AI startups — companies building new consumer experiences rather than bolting chatbots onto old workflows. Venture capital firms, including Khosla Ventures and Lightspeed Venture Partners, are involved, alongside leaders from OpenAI, Google, and Stripe. A demo day will take place in early March in San Francisco.

The philosophy echoes a recent post from Y Combinator CEO Garry Tan: “Instead of worrying about doing the same thing we’ve been doing for cheaper, why not focus on doing the thing we never even dreamed of doing?”

A handful of startups already embody that ethos.

Particle brings news for the AI era


Sara Beykpour, CEO of Particle

Sara Beykpour, CEO and cofounder of Particle.

Sara Beykpour



Sara Beykpour, CEO and cofounder of Particle, says the tech industry is in a liminal moment.

“We’re in a transition between the first wave and the second wave,” she said.

The first wave delivered massive productivity gains. At Particle, an AI-native news platform, tasks that once took a month can now be built, tested, and deployed in hours.

“We actually call each other out in meetings when someone falls into the old way of thinking,” Beykpour said. “We jokingly call it ‘boomer thinking,’ even though we’re all millennials.”

That shift in mindset gives the startup more time to focus on unlocking new AI-powered formats. Particle recently launched Podcast Clips, a feature that embeds the most relevant snippets of long-form podcasts directly into news stories. Instead of hunting through a three-hour episode, users see curated clips attached to specific topics.

“It changes the information hierarchy,” Beykpour said. “Instead of having to find the podcast you want to listen to, we’re bringing the podcast to you based on the most relevant parts.”

Under the hood, the system uses AI embeddings to map relationships between transcripts and stories. A clip from a talk show about Greenland and Davos, along with comments from President Donald Trump, can be automatically linked to relevant reporting. Generative AI then layers summaries and context on top.

These AI embeddings “have gotten much better in important ways,” Beykpour told Business Insider in a recent interview.

AI can be a ‘super-motivator’ in fitness


Creston Brooks (left) and Alexis Sursock (right), cofounders of Luvu

CTO Creston Brooks (left) and CEO Alexis Sursock (right), cofounders of Luvu.

Luvu



If Particle reimagines news, Luvu reinvents personal training using generative AI.

Launched in August 2025 by CEO Alexis Sursock and CTO Creston Brooks, the AI-powered fitness app has already attracted about 250,000 users. The app features an AI “marshmallow” that acts like a personal trainer, sending highly personalized notifications and real-time feedback.

“The key is the personalization, which is powered by AI models and wouldn’t have been possible before this technology appeared in recent years,” Brooks said.

Instead of generic reminders — “It’s time for your workout” — Luvu tailors messages. If a user logged that they had a test yesterday, the app might follow up with, “Your test is over. Time to work out!”

The results are striking. Luvu’s notification click rate is four times that of typical non-personalized prompts. In an industry where only 2% to 3% of users remain active after 30 days, Brooks said, Luvu claims retention rates that are two to three times higher.

The app offers three motivational styles: supportive, neutral, or “meaner marshmallow.” Behind the scenes, Luvu also uses AI for granular, one-to-one messaging crafted by LLMs.

The company is also experimenting with reinforcement learning with verified rewards, a relatively new technique for training and improving AI models.

Users can prop their phones against a surface and record themselves exercising; the app uses computer-vision models to verify whether squats or other moves are performed correctly, offering real-time corrections like “Straighten your knees.” These verified signals feed back into the system, helping train what Brooks envisions as a future “super-motivator” model.

This isn’t just a chatbot layered on top of a fitness tracker. It’s a feedback loop between human behavior and AI, something that couldn’t easily exist before the advent of modern models.

Status helps you live your dream life online


Fai Nur, CEO of Status

Fai Nur, CEO and cofounder of Status.

Status



For Fai Nur, CEO and cofounder of AI-powered social simulation game Status, the Second Wave is about imagination.

“Status could not have existed before LLMs,” she said.

The app, which has surpassed 3 million downloads, lets users role-play in AI-generated social media worlds. Think The Sims, though played out as a living, breathing social feed.

Users can cast themselves as anything they can imagine, such as Hogwarts students, soccer stars, or characters from “Stranger Things.” Post an update, and AI-generated characters instantly reply. Events unfold dynamically: miss a penalty kick, and face the backlash. An AI system assigns an “aura score” to grade responses and level players up or down.

In many enterprise settings, the non-deterministic nature of LLM outputs is a liability. Generative AI models sometimes respond to the same prompt in different ways, which doesn’t lend itself to applications that require strict accuracy.

In gaming, this can be an asset because each new AI-generated response can be new, creating a richer, more varied experience.

“You haven’t been able to role-play like this until now,” Nur said.

Before LLMs, creating immersive fandom worlds required persuading other humans to participate. Now, entire social universes spin up instantly.

For Gibbs and other proponents of AI’s Second Wave, that’s the point. The technology’s future won’t be defined by incremental cost savings, but by products that feel native to AI — experiences that surprise, motivate, inform, and entertain at consumer scale.

If the first wave made businesses leaner, the second may make everyday life stranger, richer, and more interactive — and, crucially, something people will pay for.

Sign up for BI’s Tech Memo newsletter here. Reach out to me via email at abarr@businessinsider.com. Note: Axel Springer, the parent company of Business Insider, is an investor in Particle.




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AI CEO warns AI’s disruption will be ‘much bigger’ than COVID: ‘The people I care about deserve to hear what is coming’

It’s never a good sign when a CEO warns something more disruptive than COVID is heading our way.

In an essay titled “Something Big Is Happening,” Hyperwrite CEO Matt Shumer said AI can now do all of his technical work — and he thinks your job could be next.

“I’m writing this for the people in my life who don’t… my family, my friends, the people I care about who keep asking me ‘so what’s the deal with AI?’ and getting an answer that doesn’t do justice to what’s actually happening,” Shumer wrote in his nearly 5,000-word post published Tuesday on X.

As of Wednesday morning, Shumer’s post had 40 million views and 18,000 retweets.

Shumer said that the reason people in tech “are sounding the alarm” is that they have already experienced what’s coming for everyone else.

“We’re not making predictions,” he wrote. “We’re telling you what already occurred in our own jobs, and warning you that you’re next.”

Shumer said that many people outside tech wrote off AI years ago after a clunky experience with an early edition of ChatGPT.

“The models available today are unrecognizable from what existed even six months ago,” he wrote. “The debate about whether AI is ‘really getting better’ or ‘hitting a wall’ — which has been going on for over a year — is over.”

It’s not the time to panic, Shumer said. Instead, the best thing to do is to become deeply familiar with AI. “This might be the most important year of your career,” he wrote.

“I don’t say that to stress you out. I say it because right now, there is a brief window where most people at most companies are still ignoring this,” he wrote. “The person who walks into a meeting and says ‘I used AI to do this analysis in an hour instead of three days’ is going to be the most valuable person in the room.”

He’s far from alone in sounding the alarm. Despite disagreement from other tech leaders, Anthropic CEO Dario Amodei remains adamant that AI could wipe out up to half of white collar, entry-level jobs in the next one to five years.

xAI CEO Elon Musk and others have warned that if your job doesn’t involve physical labor, it’s likely to be replaced by AI much more quickly, a view that dovetails with a growing base of economic research.

Shumer’s essay struck a chord, especially with those in tech. Reddit cofounder Alexis Ohanian replied, “Great writeup. Strongly agree.”

“Great advice for how to get ahead in your job at any large company right now,” A16z general partner David Haber wrote.

While the response to the post has been overwhelmingly positive, some X users pointed out the limitations still present in many current AI products, like hallucinations and general inaccuracies.

What changed Shumer’s mind

Shumer said that this moment feels like February 2020, when in a short span of time, news of a spreading pandemic gave way to a worldwide upheaval unseen in modern times that continues to reverberate to this day.

The potential of what AI will change, he wrote, is “much bigger than Covid.”

For Shumer, this moment of realization came with the recent dueling releases of Anthropic’s Opus 4.6 and OpenAI’s GPT-5.3 Codex. Both models are primarily aimed at software engineering. OpenAI said in its release notes that GPT-5.3 Codexis our first model that was instrumental in creating itself.”

“It wasn’t just executing my instructions,” Shumer wrote of his experience with OpenAI’s latest Codex model. “It was making intelligent decisions. It had something that felt, for the first time, like judgment. Like taste. The inexplicable sense of knowing what the right call is that people always said AI would never have.”

AI is now so intelligent, Shumer said, that he can tell the agent what he wants and “walk away from my computer for four hours, and come back to find the work done. Done well.”

In a post on LinkedIn Wednesday morning, Shumer addressed his viral X post.

“Every time someone asks me what’s going on with AI, I give them the safe answer,” he wrote on Wednesday. “Because the real one sounds insane. I’m done doing that.”




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