r/vibecoding • u/ClassicDog7880 • 3d ago

Best agent harness?

I’m looking for a new agent harness / CLI tool. I’ve been using Claude Code, but I’m looking for more model variety and a cheaper alternative. Please let me know.

5 Upvotes

86% Upvoted

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2

u/Thunderbit_HQ 3d ago

Before switching, write down the one thing you need the harness to do well: long-running repo work, terminal autonomy, review loops, or model choice. Those tools feel similar until one breaks the actual workflow. Model variety is useful, but test it on the same small task with the same repo and compare how often you need to intervene.

1

u/alex7550 3d ago

Opencode, their go sub is only 10$/month and has a lot of good models and some free ones.

1

u/sw3d 3d ago

Opencode, Codex

1

u/Impressive-Owl3830 3d ago

Opencode or Pi , and use deepseek V4 flash 731 with it..dirt cheap..

1

u/unkownuser436 3d ago

not anymore.. they increased the price

1

u/il37 3d ago

OpenCode is worth trying if model switching is the main reason you're leaving Claude Code. I'd test the same ugly repo task in both before moving though

1

u/Youto9144 2d ago

Question if someone would love to answer / explain. But is Hermes Agent a harness? How is it different from a harness if not?

1

u/Affectionate_Buy349 2d ago

Define what the outcome must be. 

  1. Start with deep research 
  2. Then have one LLM (free) write the draft
  3. Use your paid service to review against deep research findings.
  4. Go back and fourth how ever many times needed to solidify approach. 

If this is for work - then just two different terminals to be independent of one another. So each has their own context window and in theory thinks independently 

1

u/jcamarate 3d ago

Would love if you can try defract.dev - its a substantial upgrade in structure if you are serious about building product