Builder.ai collapses after $1.5B "AI" was just humans in disguise

If you thought generative AI was finally ready to replace your dev team, Builder.ai has a reality check for you: the magic AI behind the curtain was literally hundreds of engineers in India typing out code by hand.

The British startup, once hailed as a pioneer in software development and valued at $1.5 billion in 2023, just filed for bankruptcy protection. Backed by Microsoft and Qatar's sovereign wealth fund, the company unraveled after internal records exposed that its automation was largely manual labor, compounded by alleged multi-year financial fraud.

The "wizard" behind the curtain

For eight years, Builder.ai pitched its flagship AI assistant, Natasha, as an autonomous engine that could assemble custom software as effortlessly as ordering a pizza.

According to internal documents and staff accounts reviewed by Bloomberg, that pitch was a facade. Hundreds of coders across Noida and Bangalore were manually building client projects from scratch.

Management even forced engineers to act like bots. Former employees revealed they were explicitly instructed never to reveal their location, to avoid Indian English phrasing, and to mimic AI text patterns. Deliverables were deliberately timed to UK office hours to sell the illusion of real-time machine generation.

A 2022 internal memo bluntly told staff that proprietary AI had to be the entire narrative, noting that human labor had no place in their pitch deck.

Fake invoices and millions in cloud debt

The house of cards tumbled fast starting in April 2025, when Bloomberg uncovered a round-tripping scheme with Indian social media outfit VerSe Innovation. Between 2021 and 2024, the firms swapped matching invoices for phantom services, artificially pumping Builder.ai's revenue by as much as 300 percent.

Audits later showed Builder.ai generated just $55 million in 2024, a far cry from the $220 million promised to investors.

Once creditors caught wind, the cash evaporated. Viola Credit seized $37 million from the startup's accounts, leaving a meager $5 million behind. Meanwhile, Builder.ai owes $85 million to Amazon and $30 million to Microsoft for unpaid cloud infrastructure.

Founder Sachin Dev Duggal, who went by the title "Chief Wizard," stepped down in February 2025 and decamped to Dubai. His successor, Manpreet Ratia, quickly laid off roughly 80 percent of the workforce—around 1,000 people. Both the SEC and the US Attorney's Office for the Southern District of New York have now launched fraud investigations.

Why it matters

This marks the most spectacular collapse of a funded AI startup since ChatGPT kicked off the current boom in 2022. For enterprise buyers and developers, it is a glaring warning: when a vendor promises magic, autonomous code generation, make sure you aren't just paying premium software margins for disguised manual outsourcing.

In our view, this mess exposes deep embarrassment for blue-chip backers. Microsoft poured $455 million into Builder.ai in 2023 with grand plans to weave it into Azure, yet basic technical and financial due diligence apparently failed to catch what was essentially an offshore dev shop running a round-tripping ring. Big tech validation does not equal legitimate tech.

Expect regulators to turn Builder.ai into the poster child for cracking down on "AI washing." For legit AI startups, fundraising due diligence is about to get much more painful, but purging fraudulent actors is the only way the industry rebuilds credibility.