AI Rank
Open SourceModelsAppsInsightArticles
Get the app
← Developers
#5405 5

Sebastian Husch Lee

@sjrl · Germany
Open on GitHub
4.72k
Weighted score
471
Contributions
4
Repos
Top repos
  • deepset-ai/haystack
  • deepset-ai/haystack-cookbook
  • huggingface/optimum
  • Soulter/hugging-chat-api
Ranked AI repos1
2161889
deepset-ai/haystack
+3today

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.

26.7k· Python· AI Engineering
AI Rank

Your AI radar. Open source, models and apps, ranked every day from real momentum and real usage.

Get AI Rank for iPhone
Explore
  • Open Source
  • Models
  • Apps
  • Insight
  • Articles
About
  • About AI Rank
  • Content & rights
  • Terms of use
  • Sources & methodology
  • Top rated
  • Support
  • Privacy
  • iOS app
Data: GitHub; model and app usage from OpenRouter (CC BY 4.0); model ratings from Arena (CC BY 4.0). Provider logos from Lobe Icons (MIT).
© 2026 AI Rank
Open SourceModelsAppsInsight