Head to head
3 of 12 recorded facts differ. Everything below is source-reported with a capture date. Niched has not published a buyer verdict for this pair, so nothing here declares a winner. A winner only exists inside a defined buyer niche with stated constraints.
Open-source AI orchestration framework for building context-engineered, production-ready LLM applications. Design modular pipelines and agent workflows with explicit control over retrieval, routing, memory, and generatio. haystack is open source, written primarily in Python, released under Apache License 2.0. Its repository has 26.1K GitHub stars and 3K forks, and was last committed to within the last two weeks. Niched places it in AI agents & autonomous workflows.
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Debug, evaluate, and monitor your LLM applications, RAG systems, and agentic workflows with comprehensive tracing, automated evaluations, and production-ready dashboards.
Visit ↗| Fact | haystack | opik |
|---|---|---|
| GitHub stars | 26.1K | 21K |
| Forks | 3K | 1.7K |
| Open issues | 108 | 159 |
Both products are placed in AI agents & autonomous workflows. A category organises the market; it carries no score. See all haystack alternatives.