Y Combinator's Generative AI Portfolio

Slashy is an AI assistant that automates repetitive tasks by integrating with tools like Gmail, Slack, Notion, and JIRA, saving users time.

Pleom builds AI-interactive hardware devices and moves quicker than OpenAI to own the conversation.

IvyCheck is a AI driven cybersecurity company that offers enterprise teams a tool for extracting hidden insights from data.

Unsloth makes reinforcement learning and finetuning easier and more efficient.

Writesonic is as AI Search Growth Engine that helps brands win customers from AI search.

Vespper is the first MCP for docx documents

LedgerUp is an AI bookkeeper who understands business and is as accessible as sending an email.

Camfer builds AI mechanical engineer that helps humans design, test, and improve 3D models on CAD platforms.

Dataleap is a Software Development firm offering an AI Assistant for through market research.

DreamRP empowers creators to engage fans through ethical AI, turning characters into chatbots for interactive storytelling.

Gauge helps companies show up in AI answers.

Melty offers an open-source AI code editor that helps engineers write production-ready code and better understand coding.

Jarmin offers machine-learning engineering services to help companies build and deploy AI/ML systems.

Zoltar Labs provides AI-assisted tools to automate customer support.

AI Customer Service Platform for Enterprises

HappyRobot provides AI workers and automation software for enterprise workflows, communication, and operational process management.

Algen Biotechnologies is a therapeutic discovery company that builds a platform to decode functional gene networks.

Faster, cheaper Github runners and AI powered software delivery insights

CozmoX AI is the AWS for voice AI—build, deploy, and scale natural-sounding AI employees to replace repetitive roles in days, not months.

The System of Record for Conversation Data

Hark develops multimodal AI software and agents for personal intelligence and computer-use tasks.

Expert AI Agent for Legal Research, Regulatory Change Tracking, Control & Policy Reviews

The enterprise platform for enabling private, secure, and regulation-compliant Gen AI models.

River AI provides an API for fine-tuning and reinforcement learning, enabling users to build and serve personalized AI models.

Ollama is a software firm that develops local inference platform designed to run large language models.

Inference for real-time agents.

Blaise is developing a software platform driven by AI that will allow businesses to develop unique commercial apps.