BAML

About BAML

BAML (Boundary Markup Language) is an open-source domain-specific language that brings type safety and structure to AI development. It allows developers to define prompt functions, input and output schemas, and validation rules that automatically generate reliable code across languages like Python, TypeScript, Ruby, and Go. BAML ensures consistent, schema-validated responses from large language models, making AI applications more predictable, testable, and production-ready.