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haystack vs langgraph4j

Compare haystack and langgraph4j using verifiable public signals, licensing and project quality.

haystack

langgraph4j

Data sourceGitHubGitHubCategoriesAIAIYunoDB quality score100/10096/100PopularityGitHub stars 26,203GitHub stars 1,922LicenseApache-2.0MITPricingOpen sourceOpen source
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