How do I run Phi-4 locally in .NET?

Grab Ollama, pull phi4-mini, wire via OllamaSharp or Semantic Kernel's OpenAI endpoint at localhost:11434.

What hardware for local LLMs in .NET?

4GB VRAM minimum for minis; 8GB+ ideal. Quantized fits laptops fine.

Local for dev, privacy, offline. Cloud for production scale.

Cloud AI bills bleeding you dry? Local LLMs in .NET just fixed that. Phi-4 crushes it on your laptop—no subscriptions, no spying.

theAIcatchup Apr 09, 2026 3 min read

Local Phi-4 slashes API costs to under $50/month while keeping data secure. 𝕏
ONNX Runtime GenAI delivers sub-100ms responses on consumer laptops—no cloud needed. 𝕏
Start with quantized Phi-4-mini: Fits 4GB VRAM, handles 90% dev tasks like code gen. 𝕏

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Community-driven. Code-first.

#.NET AI #ONNX Runtime #Ollama #Phi-4 #local LLMs

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Originally reported by Dev.to