ART vs DeepSeek Harness

Side-by-side comparison of two AI agent tools

A
ARTopen-source

Agent Reinforcement Trainer: train multi-step agents for real-world tasks using GRPO. Give your agents on-the-job training. Reinforcement learning for Qwen3.6,

D
DeepSeek Harnessopen-source

DeepSeek Harness: Everything is a Plugin.

Metrics

ARTDeepSeek Harness
Stars10.8k241.0k
Star velocity /mo898.666666666666620.1k
Commits (90d)20819.8k
Releases (6m)110
Overall score0.67384263808206260.9567284473507968

FAQ

Which is more popular, ART or DeepSeek Harness?
DeepSeek Harness has more GitHub stars (241,031 vs 10,784).
Which is more actively developed, ART or DeepSeek Harness?
DeepSeek Harness had more commits in the last 90 days (19,798 vs 208).
Should I use ART or DeepSeek Harness?
Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.