YC AI Startups 2026: The Complete Batch Breakdown

Y Combinator's 2026 batches are roughly 60% AI companies — up from 40% in 2024. The accelerator has backed some of the biggest names in AI (Cursor, Perplexity, Scale AI, Runway), and the latest batches show where the smart money thinks AI is heading next: vertical agents, infrastructure plays, and AI-native workflows replacing entire SaaS categories.

This guide tracks every notable AI company from recent YC batches. We've added context you won't find on YC's own directory: which founders have appeared on AI podcasts, what traction metrics are public, and which companies are gaining momentum based on community signals.

How to Use This Guide

For each company, we include:

• What they do — Product description and target market
• Batch — When they participated in YC
• Funding — Known rounds and investors
• Why they matter — Competitive positioning and what makes them interesting

Winter 2026 Batch (W26)

Notable AI Companies

Fall 2025 Batch (F25)

Notable AI Companies

Summer 2025 Batch (S25)

Notable AI Companies

Previous Batches - Notable AI Companies

YC W24-F24

YC W23-F23

Company Profiles

Anysphere (Cursor)

• What: AI-first code editor
• Batch: YC S22
• Funding: $100M+ Series A
• ARR: $50M+
• Why it matters: Changed how developers write code
• Competition: VS Code, Zed

Adept

• What: AI agents for enterprise automation
• Batch: YC W23
• Funding: $650M+ total
• Why it matters: Pioneer in enterprise agents
• Competition: Microsoft, Salesforce

Harvey

• What: AI for legal professionals
• Batch: YC W22
• Funding: $100M+ Series B
• Why it matters: First major vertical AI success
• Competition: Casetext, LegalZoom

Glean

• What: Enterprise AI search
• Batch: YC S20
• Funding: $300M+ Series C
• ARR: $50M+
• Why it matters: Enterprise search redefined

YC AI Statistics

By the Numbers (2025)

• Total AI companies: 400+
• Average batch size: 250 companies
• AI percentage: ~60% of each batch
• Total funding raised: $10B+

Success Rate

• Became unicorns: ~2% of batch
• Raised Series A: ~20%
• Active after 2 years: ~40%

How to Get Into YC

For AI Startups

1. Apply early - YC rolls, apply anytime
2. Build in public - Share demos, metrics
3. Focus on growth - Show clear trajectory
4. Demo day matters - Prepare extensively

What YC Looks For

• Founder quality - Can you execute?
• Large market - Can this be big?
• Technical differentiation - What's your moat?
• Traction - Users, revenue, growth

YC Alternatives

Resources

• YC Companies
• YC AI Directory
• Hacker News

Last updated: March 2026