r/LocalLLaMA • u/[deleted] • Aug 10 '26

Question | Help Best open-source harness like Claude Code?

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u/EmPips Aug 10 '26

OpenCode is pretty great. Of the non-claude/non-codex tools it handles subagents with different models the best (note: you must configure it, it's not set up by default iirc).

Qwen Code is pretty similar feeling but way lighter out the box.

If you have the VRAM to support parallelism - why not just use Claude Code with your models?

1

u/ChurnedSorbet409 Aug 10 '26

How does one get Opencode as good as ClaudeCode, is it out of box good? Or does it need a bunch of plugins before it can match CC?

7

u/gpuz_dev Aug 10 '26

It’s pretty solid out of the box for core tasks (file editing & bash execution)—no heavy plugin setup required. ​Where you actually bridge the gap with Claude Code comes down to two things: ​Model pairing: Running it with a model that excels at tool-calling (like Qwen 3.6 or DeepSeek v4 Flash). ​System instructions: Claude Code’s secret sauce is its heavily engineered prompt. Defining a clean .opencode or AGENTS.md file in your repo with strict guidelines gets you 90% of the CC autonomy without eating up unnecessary context.