Boundary

Boundary, previously named Gloo and Gloo Chat, operates from Seattle, WA, and is a part of the B2B industry, specifically focusing on tools for AI development. Founded by engineers with extensive experience in AI systems, Boundary aims to streamline the AI app development process from start to finish. The company offers a range of products including BAML, a programming language that allows for structured outputs from large language models (LLMs) with zero boilerplate, and a VSCode extension that enhances the development experience within a familiar coding environment. Boundary’s unique features include the ability to turn production errors into test cases with a single click, and the logging of BAML functions in a type-safe manner to its analytics dashboard, Boundary Studio, for comprehensive monitoring. The company also plans to introduce React components for collecting high-quality, type-safe user feedback. Boundary’s toolkit supports type-safe LLM outputs, works with Python & Typescript, and includes a VSCode LLM Playground for instant testing. The BAML compiler is primarily written in Rust and supports models from Openai, Anthropic, Gemini, Mistral, and allows for custom model integration. Boundary’s products, including the BAML and its VSCode extension, are free and open-source, with paid capabilities beginning from the use of Boundary Studio for enhanced monitoring and feedback collection. The company is backed by Y Combinator (W23 batch) and trusted by developers at companies such as Aer, Haven AI, PMMI, Vetrec, and Zenfetch. Boundary also provides detailed documentation, FAQs, a blog, and a newsletter to keep users informed about updates and developments.