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AfterQuery hits $3.2B valuation, YC's fastest unicorn ever

AI training-data startup AfterQuery has reportedly raised new funding valuing it at $3.2 billion, just five months after its $30 million Series A priced it at $300 million. Y Combinator partner Gustaf Alströmer called it the fastest launch-to-unicorn run in the accelerator's history, achieved by founders who are just 22 and 23 years old.

Circleback launches free tier as meeting note-taker competition heats up

Circleback, a Y Combinator-backed startup, is introducing a free subscription plan offering unlimited meeting transcription with 30-day history access, mobile and Apple Watch apps, and integrations with Linear and Slack. Previously the company had no free option, with paid plans starting at $20.83 monthly; those now start at $14 per month for full features. The move comes as rivals like Granola, Wispr, Calendly, Read AI, and Fireflies crowd the meeting note-taking market.

YC-backed Adentris seeks a technical co-founder for AI compliance platform

Adentris, a Y Combinator-backed startup building AI compliance and revenue-integrity tools for behavioral health providers, is hiring to fill a top technical leadership role. The company processes real patient records inside a HIPAA-compliant Azure environment, running all AI inference internally rather than through external LLM APIs. Its founding team includes CEO Dmitry Karpov, CPO Sergey Yudovskiy, and CTO Alex Odin, who previously led AI work at ManyChat.

Paul Graham argues universities should teach building skills, not startup courses, to prepare founders

In a new essay, Paul Graham says Y Combinator's decades of experience selecting founders show that the best preparation for startup success is deep technical or creative skill, not a formal entrepreneurship curriculum. He argues universities should keep teaching subjects like computer science, engineering and molecular biology, since founders succeed by building products customers want, not by studying management or finance.

Autostep, a YC-backed workflow automation startup, opens hiring for engineers and Chief of Staff

Autostep, a San Francisco startup building a desktop app that identifies repetitive, costly tasks inside companies and recommends fixes via AI agents or process changes, is expanding its team. The company is recruiting AI and fullstack engineers along with a Chief of Staff as it scales its product. Autostep is part of Y Combinator's current batch and has backing from Neo and executives tied to companies like Cognition, Vanta, and OneTrust.

Y Combinator-backed Meteoric Technologies pitches drone swarms to clear clouds over solar farms

Meteoric Technologies, founded by two Cambridge engineers, wants to deploy fleets of autonomous drones into low- and mid-altitude clouds above solar farms to alter water droplets and reduce cloud reflectivity without chemicals. The startup claims this could boost annual power generation from existing solar assets by 10-30%, though this figure comes from a computer model rather than field measurements at an actual solar farm. Its only public evidence so far is a claimed 13% dissipation of an artificial cloud in an undisclosed cloud-chamber test.

Y Combinator-backed Meteoric to test drones that clear clouds over solar farms

Meteoric, a startup founded by two Cambridge engineers, is developing autonomous drone fleets designed to fly into low- and mid-altitude clouds above solar farms and physically alter water droplets to reduce cloud reflectivity. The company says this chemical-free approach could boost energy output from existing solar installations by 10-30%, costing an estimated $30-60 per hour to operate, far cheaper than traditional cloud-seeding aircraft.