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Hello LA,

This week’s startup story began three years ago with an AI assistant built for almost any small business. It ended, or perhaps graduated, with an acquisition by one of the fitness industry’s largest technology providers.

ABC Fitness has acquired Replify, an AI platform that manages customer communication for gyms and wellness businesses across phone, text, email and chat. Its virtual agents can answer questions, qualify leads, schedule tours and classes, follow up on missed calls and run outbound campaigns. Financial terms were not disclosed.

Before Replify found its footing in fitness, it was HeyLibby, a general-purpose AI assistant founded in 2023 by former Zillow colleagues Spencer Rascoff, Tony Small and Anna Rodriguez. The company was incubated inside Rascoff’s 75 & Sunny Labs and initially set out to help small businesses turn incoming messages into qualified leads.

That broad vision gave HeyLibby a large potential customer base, from real estate agents and contractors to hairstylists and event planners. But as the team searched for product-market fit, one industry’s problem stood out. Gym and wellness employees were often too busy helping customers in person to answer every call, text or email, leaving prospective members waiting and potential revenue on the table.

That insight reshaped the company. HeyLibby narrowed its focus to fitness and wellness, raised a $4.5M seed round in 2025 and later rebranded as Replify. It went on to work with brands including Gold’s Gym and UFC Gym, proving that its AI agents could do more than answer routine questions. According to the company, customers have captured up to 10 times more leads and shortened sales cycles from roughly 30 days to as little as three to five days.

ABC Fitness became a natural next step. The company provides software to more than 30,000 fitness businesses serving over 40 million members worldwide. By adding Replify to its platform, ABC can offer gyms an always-available AI front desk while bringing Replify’s technology to a much larger global customer base.

Replify’s journey offers a useful lesson amid the rush to build AI products for everyone. The company began with a broad promise, identified a customer with a specific and expensive problem, and built deeply around that need. Gym owners did not need another flashy chatbot. They needed someone to answer the phone when the front desk could not.

Sometimes the smartest AI strategy is simply picking up the call.

More from this week’s LA startup and venture scene below.

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Hello LA,

Nine years after his turbulent exit from Uber, Travis Kalanick is back with a new company, an enormous war chest and, apparently, some unfinished business.

Los Angeles-based Atoms announced this week that it has secured a $1.7 billion equity investment led by Andreessen Horowitz, with a16z cofounder Ben Horowitz joining its board. Bain Capital, Fifth Wall, Uber and several other investors participated, while a roster of major banks, including Goldman Sachs, JPMorgan and Bank of America, are listed as debt partners.

Yes, Uber itself is now backing the comeback of its famously ousted cofounder. Silicon Valley may preach disruption, but it has always appreciated a good redemption arc.

Atoms is the culmination of the company Kalanick has spent the past eight years building largely out of public view. Formerly known as City Storage Systems, the parent company behind CloudKitchens, it is now bringing its businesses together under one ambitious umbrella: Atoms Food, Atoms Mining and Atoms Transport.

The premise is that AI’s next major frontier will not be confined to screens, chatbots or software. Atoms wants to build what Kalanick calls a “computer for the physical world,” using software, sensors, robotics and AI to automate how physical goods are produced, stored and moved.

That means tackling decidedly unglamorous but enormous industries such as mining, construction, food production and heavy transportation. Rather than betting on humanoid robots that can theoretically do everything, Atoms is focused on specialized machines designed to perform specific, economically useful jobs.

In other words, the robot does not need a face. It needs a business model.

For a16z, the investment is as much a bet on Kalanick as it is on industrial AI. In an essay bluntly titled “Travis Is Back,” Horowitz argues that Kalanick possesses the rare mix of technical range, endurance and sheer force of will required to drag old-line industries into a new technological era. The firm’s broader thesis is that robotics will eventually handle much of the repetitive work involved in making, moving and storing physical goods, creating a market potentially as consequential as computing itself.

There is also some history being settled. Kalanick, Horowitz and Marc Andreessen nearly partnered during Uber’s early days but never completed the deal. In a new conversation about Atoms, Kalanick and Horowitz revisit that missed opportunity and the long road that brought them back together. Sixteen years later, the check is considerably larger.

The scale of the investment is remarkable, but so is its location. Atoms is headquartered in Los Angeles, giving the city a front-row seat to one of tech’s boldest industrial AI bets. It also reinforces something increasingly evident across LA’s startup ecosystem: the next era of AI will not only be written in code. It will be built in kitchens, warehouses, mines, vehicles and factories.

Whether Atoms becomes the operating system for the physical world or simply proves that even $1.7 billion cannot make atoms behave like bits remains to be seen. But Kalanick is taking another enormous swing, and this time, Los Angeles is where the comeback story begins.

More from this week’s LA startup and venture scene below.

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🔦 Spotlight

Happy Friday LA,

A new defense startup just emerged from stealth with one of the week’s biggest funding rounds and a mission built for the realities of modern warfare.

Los Angeles-based Singularity raised an oversubscribed $80M Series A at a $400M valuation to develop low-cost air defense systems at scale. Khosla Ventures and Felicis led the round, with participation from AE Ventures, NEA, Long Journey, Harpoon, Menlo Ventures, Y Combinator and others.

The company is targeting an increasingly lopsided problem: inexpensive drones and munitions can be produced quickly and deployed in large numbers, while the systems used to intercept them are often costly and difficult to manufacture at comparable scale.

Singularity’s answer is to borrow from the automotive industry. Its manufacturing team, which includes talent from Tesla and Toyota, is building an assembly line designed to rapidly produce interceptors, while developing the hardware and software in-house. The broader team also includes veterans of SpaceX, Anduril and Lockheed Martin, along with military operators who have deployed air defense systems in combat.

The company is already conducting multiple flight tests each month. Now it has $80M to prove that air defense can be manufactured more like cars and less like traditional military hardware.

Whatnot Wants AI to Find Your Next Obsession

The thrill of Whatnot is not always finding what you came for. It is stumbling into a live show and discovering something you suddenly need to own.

Now the Marina del Rey-based marketplace is investing in AI to make those moments happen more often.

Whatnot acquired Shaped, a machine-learning startup that builds real-time recommendation and search systems. Financial terms were not disclosed.

Shaped founder and CEO Tullie Murrell and nearly a dozen engineers and researchers will join Whatnot, where Murrell will create and lead a new applied AI research group focused initially on discovery and personalization.

The acquisition comes as Whatnot’s marketplace becomes much larger and more complicated. The company launched more than 35 new categories last year and over 45 during the first half of 2026. Cross-category purchasing is also up 170% year over year, suggesting users are increasingly willing to venture beyond the products that first brought them to the platform.

Unlike a traditional online store, Whatnot’s inventory shifts constantly as sellers start and end live shows. That makes recommending the right product or stream in real time a particularly difficult AI problem.

Whatnot is betting Shaped can help solve it. Because the longer shoppers keep discovering new interests, sellers and communities, the less likely they are to close the app.

More from this week’s LA startup and venture scene below.

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