ArtificialAnalysis puts out benchmarks for harnesses now as well, and OpenCode seems to be winning it. https://artificialanalysis.ai/agents/coding-agents#coding-ag...
I only found this yesterday, and it inspired me to start testing out OpenCode.
I'm not surprised to also see Cursor above Claude code, their harness is very good.
Can OpenCode dispatch background subagents yet? I tried it a week ago and saw nothing. This is 99% of my workflow at this point.
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Just a warning, this is on Opus. There's not a clear harness winner. It will change depending on the models.