Chat Startups

Assistant-ui is an open-source React library that provides pre-built components and state management for building AI chat interfaces. It enables developers to integrate ChatGPT-style conversational UIs into applications with support for streaming, multi-turn conversations, and integration with LLM providers like LangChain and Vercel AI SDK.

4 investors

A tool that runs in the terminal and detects when interactive prompts stall execution in development workflows, providing visibility into file operations and enabling remote redirection without SSH access.

4 investors

Guilded (YC S17) was a company that built community tools for gamers; it was acquired by Roblox in 2021.

2 investors

Olark offers live chat software and an AI agent that businesses install on their websites to answer visitor questions, qualify leads, and route conversations to human staff. It provides real-time visitor data such as location, login name, and cart contents to help marketing and customer service teams personalize interactions.

1 investor

Pensil is a community platform that provides live session hosting, webinar capabilities, and community management tools with integrated video streaming and recording features. The platform serves organizations building online communities across education, nonprofits, and freelancer networks.

1 investor

RowFlow converts traditional web forms into AI-driven conversational interfaces that operate via text, Slack, or embedded chat, enabling companies to collect structured data from users while improving response rates and reducing administrative overhead.

1 investor