Smolagents

What is Smolagents?

Hugging Face's minimal library for building agents.

Who is Smolagents best for?

Smolagents is best for Python developers who want to build AI agents with very little framework code on any model.

• A first agent in a few lines

  A working agent takes a handful of lines, and the core logic is about a thousand lines of code you can actually read.

• Agents that act in code

  CodeAgent writes its actions as Python, with loops and nested calls, and can run them in a sandbox through Docker, E2B, Modal or Blaxel.

• Teams that switch models

  It runs on models from the Hugging Face Hub, on APIs such as OpenAI and Anthropic through LiteLLM, or on local models through Transformers or Ollama.

• Reusing existing tools

  Agents can use tools from any MCP server, from LangChain or from a Hugging Face Space, and you can share agents and tools on the Hub.

How much does Smolagents cost?

Smolagents is free and open source under the Apache-2.0 license, with no paid tier; the only costs are the hosted models or code sandboxes you choose to connect it to.

Smolagents is a Python library from Hugging Face, not a hosted service, so there is nothing to buy to use it. Hosted models and code sandboxes you plug in run on your own accounts with those providers. Full pricing on github.com. We checked these prices on 28 Sep 2026.

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Is Smolagents open source?

Yes. Smolagents's code is public under the Apache 2.0 licence, so you can read it, change it and run it yourself.

What are the best Smolagents alternatives?

Two tools on Recaply do Smolagents's job.

LangChainOpen Source

The framework for building agents, with LangGraph and LangSmith.

AgnoOpen Source

Python framework and runtime for building AI agents and teams and serving them from your own cloud.

Questions about Smolagents