Agent Frameworks (Developers)free

smolagents

Extremely minimal open-source library (~1,000 lines) from Hugging Face

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What smolagents does

  • Extremely minimal open-source library (~1,000 lines) from Hugging Face
  • CodeAgent paradigm: agents write actions as executable code, not JSON
  • Model-agnostic and modality-agnostic (text, vision, audio) with sandboxed execution via E2B/Docker/Modal

smolagents — straight answers

What is smolagents?

smolagents is listed under Agent Frameworks (Developers), in the AI Agents & Automation category on Flocci AI Tools. Extremely minimal open-source library (~1,000 lines) from Hugging Face. It is free, with no paid plan attached, and it lives at huggingface.co.

Is smolagents free?

smolagents is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 115 entries on Flocci AI Tools with no upgrade path built in.

What can smolagents do?

smolagents does 3 things the catalog singles out: Extremely minimal open-source library (~1,000 lines) from hugging face; codeagent paradigm: agents write actions as executable code, not json; model-agnostic and modality-agnostic (text, vision, audio) with sandboxed execution via e2b/docker/modal.

What is the best free alternative to smolagents?

Agno is the closest free alternative: it sits in the same Agent Frameworks (Developers) sub-category and is free. AWS Strands Agents, DSPy and Google Agent Development Kit (ADK) also start free. The full list is on the alternatives page.

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smolagents alternatives

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LangGraph

Agent Frameworks (Developers)
free
  • Build stateful, multi-agent apps as graphs
  • Human-in-the-loop and durable execution
  • Works with any LLM
  • Open-source with a hosted platform
Visit

CrewAI

Agent Frameworks (Developers)
freemium
  • Role-based multi-agent 'crews'
  • Simple Python API for collaboration
  • Tasks, tools and flows
  • Open-source core
Visit

OpenAI Agents SDK

Agent Frameworks (Developers)
free
  • Lightweight agent orchestration from OpenAI
  • Agent handoffs, guardrails and tracing
  • Tool and function calling built in
  • Open-source, pay only for model usage
Visit

Microsoft AutoGen

Agent Frameworks (Developers)
free
  • Multi-agent conversation framework
  • Event-driven, async agent design
  • Studio UI for prototyping
  • Fully open-source
Visit

LlamaIndex

Agent Frameworks (Developers)
freemium
  • Leading framework for RAG and data agents
  • Connect LLMs to your documents & APIs
  • Agentic document workflows
  • Open-source with a hosted cloud
Visit

Google Agent Development Kit (ADK)

Agent Frameworks (Developers)
free
  • Open-source Python/Java framework from Google for building multi-agent systems
  • Native integration with Vertex AI Agent Engine and Gemini models
  • Model-agnostic — works with non-Google LLMs via LiteLLM
Visit

Head-to-head comparisons

smolagents vs LangGraphsmolagents vs CrewAIsmolagents vs OpenAI Agents SDKsmolagents vs Microsoft AutoGensmolagents vs LlamaIndexsmolagents vs Google Agent Development Kit (ADK)