Why a Y -Combinator Start that tackles AI agents for Windows gave up and turned

A start -up called Pig.dev, who participated in Y Combinator’s Winter 2025 -batch, worked on a potentially revolutionary idea: AI Agentic Tech to control a Microsoft Windows Desktop.

But in May, the founder announced that he was giving up the technology and turning his company into something completely different: Muscle Mem, a cache system for AI agents that allow them to relieve repeated tasks.

Of course, a YC company with early phase is nothing unusual. What is interesting – and what triggered a dynamic conversation on Thursday’s Y Combinator – Podcast – is that pigs worked with computer use, one of the large areas to be solved for agents to really be useful in the workforce. Another company – and another YC alun – it will tackle that for the browser is called browser use.

The browser usage rose to popularity as the Chinese Agent Tool script that depended on it became viral. Browser essentially uses the buttons and elements of a site to transform them into a more digestible, “text -like” format for agents, which helps AI understand how to navigate and use the site.

Under the Y Combinator -Podcast released Thursday, partner Tom Blomfield compared pigs with browser’s use for Windows Desktops. The podcast contained Amjad Masad, founder and CEO of popular vibe-coding startup replit.

Masad, Blomfield and YC partner David Lieb discussed how prolonged computer use of hours rather than minutes was still a tripping block for agents. As the context window for resonance grows, the accuracy of an agent is waving as the LLM costs are rising.

“The advice I want to give founders today is to take either browser use or Windows automation with pigs and try to apply it to business, in a vertical industry,” Blomfield suggested.

Masad agreed. “The moment technology works, these two companies will do really, really well,” he said.

But unfortunately, Pig’s founder Erik Dunteman has already given up the idea. In his post in May, he explained that he would initially run a Cloud API product (a common way of delivering AI tech). But his customers didn’t want it. So he tried to sell it as a DEV tool. And they didn’t want it either.

“What users in the Legacy App Automation Space actually wants is to give me money and receive an automation,” he said. Essentially, they wanted to hire a consultant to get their desired Windows Robotic Process Automations to work for them.

But Dunteman would not do disposable projects. He would build development tools. So he gave up pig and started working on an AI cache tool. Dunteman rejected further comments about his decision to ditch Windows automation, though Pig.Ve -Websted and Github documents remain available.

However, Dunteman told us that his new tool was inspired by the computer use problem. It tiles away on it from a different angle. The idea is to allow the agent to relieve repeated tasks to the muscle memory service so that the agent can focus on resonating for new problems and edge cases.

“What we are working on now is directly inspired by and applies to computer use, right on the developer tool.

That is not to say that no one is working on Windows Automation.

Probably the company is the longest of what Microsoft. For example, in April, Microsoft announced that the added computer use tech to Copilot Studio for graphic user interfaces like Windows. This technique was released as a preview of research. Plus, earlier this month, Microsoft announced an agent tool in Windows 11 to help end users manage settings.