Free and open first
Best LLM Application Development Frameworks in 2026 — page 2
- 49 apps
- Research read 9 Oct 2026
- How the order is worked out
- 26
AG2
Free plan - 27
Eino
Free plan Linux - 28
Microsoft GraphRAG
Free plan LinuxMacWindows - 29
Guidance
Free plan Linux - 30
Mastra
Free plan Web - 31
Orchestra
Free plan LinuxMacWindows - 32
PraisonAI
Free plan LinuxMacWindows - 33
Instructor
Free plan - 34
PydanticAI
Free plan LinuxMacWindows - 35
LangGraph
Free plan - 36
Prompt flow
Free plan Web - 37
smolagents
Free plan LinuxMacWindows - 38
TypeChat
Free plan LinuxMacWindows - 39
MetaGPT
Free plan - 40
Microsoft Agent Framework
Free plan - 41
Pocket Flow
Free plan Web - 42
Ragna
Free plan Web - 43
OrkaJS
Free plan - 44
Ragbits
Free plan - 45
Semantic Router
Free plan - 46
Spring AI
Free plan - 47
OpenAI Agents SDK
Paid LinuxMacWindows - 48
CAMEL-AI
Paid - 49
Julep
Paid