Project comparison
Compare adoption, momentum, maintenance health, and project basics before choosing which tool to evaluate deeper.
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 generation. Built for scalable agents, RAG, multimodal applications, semantic search, and conversational systems.
๐ค Transformers: the model-definition framework for state-of-the-art machine learning models in text, vision, audio, and multimodal models, for both inference and training.
Transformers has the larger GitHub footprint with 160.5K stars.
Transformers is currently growing faster at +220 stars this week.
Transformers has the stronger health score at 96/100.
| Signal | Haystack | Transformers |
|---|---|---|
| GitHub stars | 25.2K | 160.5K |
| Weekly growth | +73 | +220 |
| Health score | 79 | 96 |
| Contributors | 355 | 3.9K |
| Commits per week | 36.4 | 64.0 |
| Open issues | 115 | 2.4K |
| Language | MDX | Python |
| License | Apache-2.0 | Apache-2.0 |
| Last commit | 16h ago | 18h ago |
| Last release | v2.28.0 | v5.8.0 |
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