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SWE-agentNotable

mini-SWE-agent

Released Jul 21, 2025

A minimal open-source coding agent from the SWE-agent team: a roughly 100-line agent class whose only tool is bash, used widely as a benchmark baseline.

Interface
CLI
Pricing
Bring your own key
Models
Any model
Best Terminal-Bench
19.09% (v4.0) · Gemini 3.8 Flash
Open source
Yes
Licence
MIT License
Terminal-Benchv4.0 · per harness + model pairing
Strengths & weaknesses

Strengths

  • Works with any model via LiteLLM, OpenRouter, Portkey and more
  • Tiny, readable codebase with a linear message history
  • Runs locally or in Docker/Podman, Singularity, bubblewrap and other sandboxes

Weaknesses

  • Bash is its only tool; no IDE integration
  • Best Terminal-Bench 4.0 result is 19.1% (Gemini 3.8 Flash)

Notable: appears on the official Terminal-Bench leaderboard (tbench.ai, Terminal-Bench 4.0 — the only version tbench.ai currently shows), best rank #29; only five distinct agents are listed there, so every one is top-10. Scores are TB 4.0 resolution rates (best per model across reasoning efforts), fetched 2026-10-14 — not comparable with older Terminal-Bench 2.x figures. releaseDate is the earliest GitHub release (v1.0.0.dev4); the repo was created 2025-06-28. Now at v2.

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