Top alternatives to Haystack

Haystack is a open source in AI Agent. Here are the strongest alternatives, ranked by an explainable 4-dimension score.

● Data-backed · 503 nodes · updated 2026-06-29
#AlternativeOverallPop.Mom.Cred.Eco.
1PydanticAI · Agent Frameworks
Type-safe Python agent framework from the Pydantic team.
8374938281
2Goose · Agent Frameworks
Block's open-source extensible AI agent that automates engineering tasks locally.
8474938583
3Semantic Kernel · Agent Frameworks
Microsoft's open-source SDK for integrating LLMs and agent orchestration into apps.
8484768989
4SmolAgents · Agent Frameworks
Lightweight library for building agents that write and execute code.
8684938382
5/dev/agents · Agent Frameworks
Startup building a new operating system designed for AI agents.
7974937370
6Dify · Agent Frameworks
Open-source LLMOps platform for building and operating AI agents and applications.
7653769292
7Langflow · Agent Frameworks
Visual low-code tool for building and prototyping LLM and agent workflows.
7544908785
8Flowise · Agent Frameworks
Open-source drag-and-drop builder for LLM and agent flows.
7546908684
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