Spring AI
Spring framework for building AI applications in Java/Kotlin
Verdict
Brings the Spring ecosystem to AI. Familiar paradigms for Java teams — auto-configuration, dependency injection, and testability. Supports all major model providers. Growing fast.
Other Frameworks & SDKs
- DSPyStable
Stanford framework for programming (not prompting) LMs
- GuidanceExperimental
Microsoft's constrained generation library for structured LLM output
- HaystackStable
Deepset open-source NLP framework for production LLM pipelines
- InstructorProduction
Structured outputs from LLMs using Pydantic schemas
- LMQLExperimental
Query language for LLMs — SQL-like syntax for constrained generation
- LangChainProduction
Composable LLM application framework — chains, agents, RAG

