Open-Source AI · AI agent framework

smolagents vs SWE-agent

smolagents vs SWE-agent compared for 2026 — features, license, ease of use, performance and which one to choose. Agents in a few lines of code vs Agent that fixes GitHub issues.

Updated regularly · curated by olud.ai

Choose smolagents for simple code-writing agents, fast. Choose SWE-agent for automated bug fixing on real repos.

smolagents vs SWE-agent at a glance

SpecsmolagentsSWE-agent
CategoryAI agent frameworkAI agent framework
TypeMinimal agent libraryAutonomous issue-fixing agent
LicenseApache-2.0MIT
Runs locallyCloud-optionalCloud-optional
Primary languagePythonPython
Ease of useBeginnerAdvanced
Best forsimple code-writing agents, fastautomated bug fixing on real repos
GitHub stars28.5k19.9k

How smolagents and SWE-agent score

🏆 Overall edge: smolagents — 4.4 vs 3.9 / 5
CriterionsmolagentsSWE-agent
Popularity3.53.5
Maintenance5.05.0
Ease of use5.02.5
Privacy3.53.5
License freedom5.05.0

Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.

What each one is

smolagents

Minimal agent library · Apache-2.0

smolagents is Hugging Face's minimalist library for building agents that think in code, with first-class support for any LLM and Hugging Face tools.

  • Tiny API, agents in a few lines
  • Code-first agents that are easy to debug
  • Backed by Hugging Face
See the smolagents page →

SWE-agent

Autonomous issue-fixing agent · MIT

SWE-agent from Princeton turns an LLM into an autonomous agent that fixes bugs in real GitHub repositories using a purpose-built agent-computer interface.

  • Strong results on SWE-bench
  • Purpose-built agent-computer interface
  • Research-grade and reproducible
See the SWE-agent page →

Key differences

smolagents is minimal agent library, while SWE-agent is autonomous issue-fixing agent. Their licenses differ (Apache-2.0 vs MIT), which matters if you ship a commercial product. smolagents leans more beginner-friendly, whereas SWE-agent is more suited to advanced users. In short, smolagents fits simple code-writing agents, fast, and SWE-agent fits automated bug fixing on real repos.

Which should you choose?

Choose smolagents for simple code-writing agents, fast. Choose SWE-agent for automated bug fixing on real repos.

There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.

Frequently asked questions

Is smolagents or SWE-agent easier to use?

smolagents is generally the easier of the two to get started with, while SWE-agent rewards more setup with more control.

Are smolagents and SWE-agent free?

smolagents is free and open source (Apache-2.0), and SWE-agent is free and open source (MIT). Neither charges for the core software.

Can I run smolagents and SWE-agent locally?

smolagents: cloud-optional · SWE-agent: cloud-optional. Both can be used without sending your data to a third-party cloud where their setup allows.

smolagents vs SWE-agent — which should I pick in 2026?

Choose smolagents for simple code-writing agents, fast. Choose SWE-agent for automated bug fixing on real repos.

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