221 startups in this batch
YC Summer 2023 landed at the absolute peak of the initial Generative AI hype cycle, just months after the release of GPT-4. While the broader venture market was reeling from high interest rates and a "dry powder" standoff, YC pivoted aggressively toward applied AI, funding a cohort dominated by founders racing to build the first layer of LLM-powered enterprise tools.
This batch proved that verticalized AI agents could successfully penetrate high-stakes industries like audit, fintech underwriting, and compliance. By focusing on "un-sexy" back-office bottlenecks, these startups validated that enterprises were willing to pay a premium for non-deterministic software that could automate document spreading, evidence testing, and security access management.
Many startups from this era suffered from thin-wrapper syndrome, where their core value proposition was quickly eroded by rapid improvements in base models or native feature releases from OpenAI and Microsoft. The lesson for today's builder is that a sleek UI for an LLM is not a moat; long-term survival requires deep integration into systems of record and proprietary data loops that models cannot replicate.
The next evolution is moving from the "copilots" of 2023 to fully autonomous vertical stacks. While S23 founders built tools to help human auditors and underwriters work faster, a solo builder in 2026 can leverage multi-modal agents to build headless services that execute entire workflows end-to-end, replacing the seat-based SaaS model with a results-based economy.
Software that streams data from databases to warehouses in real-time
AI-powered software for predictive analytics, automation, and optimization of medical insurance claims workflows.
Helping businesses in emerging markets make pay their international…
Rebuilding core infrastructure for corporate health insurance including care navigation, analytics, and claims using cloud-native and AI-first technology.
Corgea finds, and fixes insecure code and packages autonomously.
AI-powered platform automating medical practice operations
Don't die of heart disease. Empirical is the first AI-native heart…
The freshest data APIs for AI sales, recruiting, & growth products
AI for Contract Audits, Negotiation & Payment Compliance
Using generative AI to call insurance for healthcare clinics
Kino automatically organizes footage to make video editing faster.
Empowering B2B sellers with AI-powered training, coaching, and content
Manage energy cost & usage with AI for facility & sustainability teams
AI-powered medical billing platform that automates revenue cycle management and claim denial recovery for healthcare providers.
AI patent drafting, prosecution, harvesting and more for legal teams.
Unlimited visual workspace to collaborate with hundreds of AI models
We help people with chronic insomnia sleep better, using psychology.
Building the AI-powered marketing ops platform that turns website…
Low cost securities-backed lending for financial advisors and HNWI
Infrastructure for managing GPU clusters for AI training and serving with priority queuing, fault tolerance, and real-time monitoring.
Development platform that makes it 10x easier to improve visual models
Digital banking platform for the 30 million smartphone users in DRC.