Y Combinator hosted its summer 2025 demo day last week, showing the last lot of over 160 startups.

As with recent lots, the major startups presented solutions focused on AA. However, a clear evolution was evident. Instead of “Ai-Powred” products, many companies are now building artificial intelligence agents or infrastructure and tools necessary to develop them. For example, this lot had a barrage of artificial intelligence solutions and new companies focused on helping others monetize the “artificial intelligence economy” with ads and marketing tools.

We talked to a handful of investors focused on YC to the will which startups love most of the interests and that Geh generated the required high investment.

Below are the most frequently mentioned ones:

What does it do: Stripe for startups ai

Because it is Favé: Many artificial intelligence startups use complex prices models that often merge a flat background fee for seats with use -based charges, credits and various additional costs. The management of complex prices of artificial intelligence on Stripe is a manual process that takes time. That’s why Autumn has developed an open source infrastructure that simplifies the integration of strips for startups. The company states that its technology is already used by Hudreds of AI AI AI and 40 YC startups. Given the dominion of Stripe in payments and the explosive growth of the AI ​​market, a specialized billing solution for the IA could be the next great success story Fintech?

What does it do: Builds paints for artificial intelligence agents

Because it is Favé: Just like Vercel helps developers to distribute and host startups, Dedalus Labs says that Plafform automates the infrastructure for the construction of artificial intelligence agents, reducing coding hours to a few clicks. The company manages complex tasks such as autoscaling and load balance, which according to this makes the distribution of agents quickly and simple.

What does it do: Crowdsource rollers of vitoglogloglogloglogloglogloglio projects

Because it is Favé: The ability of artificial intelligence to quickly generate a huge number of design creates a new problem: understand which are currently good. Design Arena solves it through the Crowdsourcing rankings of generalized visual elements, creating a feedback circuit that model to improve. The great artificial intelligence workshops see the value in the formation of their models to generate better projects, since some of them are already design customers arena.

What does it do: Distributor enabled for technology for retailers in Southeast Asia

Because it is Favé: Getasap Asia was founded by Raghav Arora three years ago when he was only 14 years old. Since then, the startup that has used technology to provide supplies to angular curtains, restaurants and large supermarkets in the South -East Asia in less than eight hours has earned millions of income. Getasap Asia closed a round of general catalyst, according to his WebsiteAnd we are feeling that the evaluation of the startup was among the highest of the entire lot.

What does it do: Engineer AI which resolved the bugs in production

Because it is Favé: Founded by a 20 -year -old Pablo Hansen that last year achieved a master’s degree in AI, Keystone is on a mission to reduce the software breaks. The company of the company finds and sets the bugs for customers like Loveble and has already refused an acquisition with seven -digit offered, Hansen said.

What does it do: Ai Matchmakers for friends

Because it is Favé: While there is no shortage of apps apps, Realoots is facing a different type of solitude. The matchmaker AI of the company, Lisa, interviews women and therefore organizes social experiences to connect them with compatible friends. While Part Ai could be a performative – conversations with Lisa would probably not give reealoys more insights on the participants that the written answers would do – Realoootots could be to something. Only last month, the company generated $ 782,000 by 9,000 paying customers, said its founders.

What does it do: Insurance complaints on the Procioni with AI

Because it is Favé: The artificial intelligence of Solva automatically automates the more routine activities for insurance regulators, from filling in complex complaints to the prevention of improper payments. Only ten Weaks after the launch, Solva has accumulated $ 245,000 in annual recurring revenues (ARR), a Fig was enthusiastic about investors.

What does it do: Mini counter -commission

Because it is Favé: With China According to reports Acclating shamans of cheap drones, the American army faces an urgent need for convenient counterfeiting solutions. Perseus is developing precisely this: small missiles designed to reduce drones to a fraction of the cost of the existing system. More branches of the American army have already invited the start to demonstrate its solution, which could lead to heavy contracts.

What does it do: To the tutor in a foreign language

Because it is Favé: Apps like Duolingo have made the learning of accessible and fun languages, but often lack a key component of fluidity: substantial. Pingo solves this problem by allowing users to speak with his artificial intelligence, which acts as a native speaker. The unique approach of the company is proving to be incredibly popular, with the founders saying that it is growing by 70% monthly and earning $ 250,000 of monthly rest.