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Best OpenAI Agents SDK alternatives in 2026

OpenAI Agents SDK is lightweight framework for multi-agent workflows. If it isn't the right fit, these 10 ai agents tools launched on AskableHQ solve similar problems — ranked by community votes.

  1. P
    Pydantic AIAdded by AskableHQ

    Type-safe agent framework from the Pydantic team

    AI AgentsOpen Source0 💬90
  2. A
    AgnoAdded by AskableHQ

    Lightweight framework for building multi-agent systems

    AI AgentsOpen Source0 💬0
  3. P
    PipecatAdded by AskableHQ

    Open-source framework for voice AI agents

    AI AgentsOpen Source0 💬43
  4. B
    BabyAGIAdded by AskableHQ

    Experimental framework for self-building agents

    AI AgentsOpen Source0 💬81
  5. I
    InstructorAdded by AskableHQ

    Structured outputs from LLMs

    AI AgentsOpen Source0 💬0
  6. L
    LyzrAdded by AskableHQ

    Enterprise agent framework

    AI AgentsPaid0 💬95
  7. S
    smolagentsAdded by AskableHQ

    Hugging Face's minimal library for code agents

    AI AgentsOpen Source0 💬71
  8. H
    HaystackAdded by AskableHQ

    Open-source framework for LLM apps and search

    AI AgentsOpen Source0 💬81
  9. M
    MastraAdded by AskableHQ

    TypeScript framework for AI agents and workflows

    AI AgentsOpen Source0 💬100
  10. S
    SuperAGIAdded by AskableHQ

    Open-source framework for autonomous AI agents

    AI AgentsOpen Source0 💬48

Head-to-head comparisons