Tech
9 startups that stood out on YC Demo Day 2
Silicon Valley accelerator Y Combinator held the second Demo Day for its Summer 2024 cohort on Thursday, and just like we saw on Day 1, AI remains the focus of most startups in this cohort.
However, we did also find a few interesting startups that are working on cool tech like drones that can’t be jammed, carpooling for freight, and weather prediction.
Here are the companies that stood out:
What it does: Detects errors in engineering projects, proposes solutions and can even implement them itself
Why it’s a fave: I was intrigued when Entangl said it has talked to Amazon CEO Andy Jassy about automating data center verification. The fact that the startup already has deals with AWS and Vodafone is a big plus.
What it does: Energy-efficient chips for AI
Why it’s a fave: One of the problems with AI is that it consumes a ton of energy. Early tests of Exa’s chips show that they are nearly 28 times more efficient than Nvidia’s H100s. What’s better, these chips can adapt to different models — you just need to configure them with software. Exa hopes to have them ready for usage by early 2025.
What it does: Developing an autoimmune therapy that kills cancer
Why it’s a fave: Keytruda and other autoimmune drugs have been a game-changer for many cancer patients, but there’s still a long way to go. Kopra Bio is working on a drug that could change that. In early tests on animals, most were still alive after 250 days, while animals on an FDA-approved drug died in just 50 days. If the drug works the same way in humans, it could be a huge breakthrough for survival.
What it does: AI bookkeeper for startups
Why it’s a fave: LedgerUp’s AI promises to make bookkeeping easier for businesses. It can categorize transactions, find discounts and credits that you may have missed, manage invoices, and even manage taxes. I hope bookkeeping becomes a job nobody will miss.
What it does: Offers a suite of productivity apps for growing organizations
Why it’s a fave: Wayne Crosby, OrgOrg’s founder, says that his company can help businesses streamline their app usage. While many businesses may be ready to consolidate their app vendors, what caught my eye about OrgOrg was Crosby’s background: The three-time founder took his first company through YC all the way back in 2007, and later sold it to Google, where it became Google Slides. This experience is bound to attract investor interest.
What it does: Carpooling for freight
Why it’s a fave: I’m a big fan of Uber Pool, so I was excited to learn about Oway. The startup lets small businesses share truck space and save money on shipping — ridesharing for freight, essentially. It’s faster and cheaper — what’s not to like about this?
What it does: Foundational model for predicting the weather
Why it’s a fave: Silurian’s founders previously helped build one of the world’s most accurate weather forecasting models: Microsoft Research’s Aurora. But four months ago, they left the tech giant to build their own weather prediction engine, which they claim is an even better prognosticator than Aurora — the company is building foundational models for simulating the entire planet, and they’re targeting weather first.
What it does: Develops unjammable drones
Why it’s a fave: Drones have changed the game in warfare. They can spy on the enemy in real time and can even hit targets with pinpoint accuracy, all while reducing the need to put pilots at risk. But there’s a catch: There are many ways to jam drones, which makes them useless. This has been a big problem in the Russia-Ukraine war. Theseus claims that its drones can dodge jamming, even if the opponent is Russia.
What it does: Reduces congestion and accidents with smart traffic lights
Why it’s a fave: Controlling traffic lights with AI sounds like the perfect application of this technology. XTraffic says that it’s already doing it in several cities in Texas. I hope they make it to my town in California, too, because I sure am tired of waiting for the light to turn green when there are no other cars around.
Tech
Exclusive: Google deepens Thinking Machines Lab ties with new multi-billion-dollar deal
Former OpenAI executive Mira Murati’s startup, Thinking Machines Lab, has signed a new multi-billion-dollar agreement to expand its use of Google Cloud’s AI infrastructure, including systems powered by Nvidia’s latest GPUs, TechCrunch has exclusively learned.
The deal is valued in the single-digit billions, according to a source familiar with the matter, and includes access to Google’s latest AI systems built atop Nvidia’s new GB300 chips, alongside infrastructure services to support model training and deployment.
Google has been actively striking a number of cloud deals with AI developers as it aims to wrap together its AI computing offerings with other cloud services like storage, a Kubernetes engine, and Spanner, its database product. Earlier this month, Anthropic signed an agreement with Google and Broadcom for multiple gigawatts of tensor processing unit (TPUs) capacity (these are Google’s custom-designed AI chips for machine learning workloads).
But the competition is fierce. Just this week, Anthropic also signed a new agreement with Amazon to secure up to 5 gigawatts of capacity for training and deploying Claude.
Earlier this year, Thinking Machines partnered with Nvidia in a deal that included an investment from the chipmaker. But this is the first time the lab has struck a deal with a cloud services provider. The deal is not exclusive, so Thinking Machines may use multiple cloud providers over time, but it’s still a sign that Google is looking to lock in fast-growing frontier labs early.
Murati left her job as OpenAI’s chief technologist and founded Thinking Machines in February 2025. The company, which soon afterwards raised a $2 billion seed round at a $12 billion valuation, has remained highly secretive, but launched its first product in October. Dubbed Tinker, it’s a tool that automates the creation of custom frontier AI models.
Wednesday’s deal provided some insight into what Thinking Machines is developing. In a press release, Google noted that it can support the startup’s reinforcement learning workloads, which Tinker’s architecture relies on. Reinforcement learning is a training approach that has underpinned recent breakthroughs at labs, including DeepMind and OpenAI, and the scale of the Google Cloud deal reflects how computationally expensive that work can get.
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Thinking Machines is among the first Google Cloud customers to access its GB300-powered systems, which offer a 2X improvement in training and serving speed compared to prior-generation GPUs, per Google.
“Google Cloud got us running at record speed with the reliability we demand,” Myle Ott, a founding researcher at Thinking Machines, said in a statement.
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Tech
The most interesting startups showcased at Google Cloud Next 2026
Google Cloud Next is taking place this week in Las Vegas, and one clear message has emerged: Google wants AI startups on its cloud. To that end, it made several startup-related announcements.
The most significant is that the tech giant has earmarked a new $750 million budget to help its Cloud partners sell more AI agents to enterprises. This funding is available to partners ranging from startups to the big consulting firms. It can be used for costs like Gemini proof-of-concept projects, Google forward-deployed engineers, cloud credits, and deployment rebates.
Google also highlighted a long list of startups that are using Google Cloud, either newly signed or expanding their footprint. Among them are a few standout names:
Lovable is expanding its use of Google Cloud by launching a new coding agent through Google’s enterprise app marketplace. Lovable is the fast-growing vibe coding startup and was on a $400 million ARR track as of February, it said.
Notion, Silicon Valley’s favorite AI-infused document productivity app, most recently valued at about $11 billion, is using Gemini models to power its text and image generation features.
Gamma, an AI-powered PowerPoint killer recently valued at a $2.1 billion valuation, is using Google’s state-of-the-art image model Nano Banana 2 and other Google Cloud features.
Inferact, the commercial inference startup from the creators of the popular open-source project vLLM, is accessing Nvidia’s GPUs through Google Cloud, in addition to using the tech giant’s AI stack.
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ComfyUI, the popular open-source tool for creating AI-generated images and multimedia, also offers access to Nano Banana 2 and is using other Cloud features.
Other startups that received the Google Cloud shout-out this year include:
ChorusView, which makes AI-powered smart tags that track the condition and movement of goods in real time.
Emergent AI, a vibe coding platform.
ExaCare AI, which makes AI software for post-acute medical care facilities.
Insilica, which creates AI-generated regulatory-compliant chemical safety reports.
Optii, which makes AI-enhanced hotel operations software.
Parallel AI, which builds web search and research APIs built for AI agents.
Proximal Health, which makes AI-powered software that automates the insurance claims adjudication process.
Reducto, which does AI-powered document parsing.
Stord, which handles e-commerce fulfillment and parcel operations.
Stylitics, which makes AI image generation software for retailers for tasks like outfit styling and product bundles.
Temporal, a developer cloud environment built to prevent failures.
Vapi, which makes dev tools for building conversational voice agents.
Vurvey Labs, which conducts synthetic market research via AI agents.
Wand, an in-game assistant for single-player PC games.
Watershed, which makes software that helps enterprises report on and manage sustainability programs.
ZenBusiness, an all-in-one back-office tool for small businesses that includes an AI chat assistant.
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Duolingo is now giving free users access to advanced learning content
Duolingo announced on Wednesday that its advanced language learning content is now available for free across nine languages: English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, and Chinese. Users can access this content through the web, iOS, and Android devices.
This advanced content is at the B2 level on the Common European Framework of Reference for Languages (CEFR), which is the international standard for language skills that schools and employers recognize. B2 level content refers to learning materials without translations, complex scenarios, and specialized vocabulary.
The new offering will include features like “Advanced Stories,” which helps with reading comprehension, and DuoRadio, a podcast-like audio experience for listening comprehension.
Now that Duolingo users can tap into this advanced learning content for free, they can level up their skills, whether that’s practicing for job interviews, prepping for studying abroad, or tackling complex news articles, films, and books without relying on translations.
The company says this positions it as the only free app to offer advanced-level learning across these nine languages at no cost. While competitors like Babbel and Busuu offer advanced courses, they typically require paid subscriptions. For instance, Busuu has some CEFR-aligned courses up to the B2 level, but the free version is pretty limited and doesn’t offer lessons like grammar explanations, so users need to pay for full access.
Previously, Duolingo only provided free courses that capped at A2 or B1 levels, mainly focusing on basic communication skills.

The company is positioning this free advanced learning offering as an enticing opportunity for job seekers, framing language learning as a practical pathway to improving employability in an increasingly global workforce.
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This comes at a time when the job market remains highly competitive and overall growth has slowed. Research from the American Council on the Teaching of Foreign Languages shows that learning a second language can raise someone’s employability by as much as 50%.
“Reaching job-ready proficiency in a new language used to be out of reach for most people,” Bozena Pajak, head of learning science at Duolingo, said in a statement. “It took years of expensive classes or immersive experiences that not everyone could access.”
Duolingo’s decision to offer advanced learning for free is also a strategy to increase its free user base. In its Q4 earnings report, the company stated that it has 52.7 million daily active users, demonstrating 30% growth compared to the previous year. This number is higher than its paid subscriber base, which stands at 12.2 million. However, Duolingo’s shares fell after the company projected that the year-over-year bookings growth rate for Q2 2026 is expected to experience a slight decline.
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