DeepSeek Harness vs Parlant

Side-by-side comparison of two AI agent tools

D
DeepSeek Harnessopen-source

DeepSeek Harness: Everything is a Plugin.

P
Parlantopen-source

Build reliable customer-facing AI agents with Parlant: an interaction control harness optimized for controlled, consistent, and predictable LLM interactions.

Metrics

DeepSeek HarnessParlant
Stars241.0k18.3k
Star velocity /mo20.1k1.5k
Commits (90d)19.8k1
Releases (6m)102
Overall score0.95672844735079680.505391333340504

FAQ

Which is more popular, DeepSeek Harness or Parlant?
DeepSeek Harness has more GitHub stars (241,031 vs 18,300).
Which is more actively developed, DeepSeek Harness or Parlant?
DeepSeek Harness had more commits in the last 90 days (19,798 vs 1).
Should I use DeepSeek Harness or Parlant?
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.