AI & MLAdvanced
Evaluating AI Applications in .NET: Quality, Safety and CI
Evaluate LLM apps in .NET with Microsoft.Extensions.AI.Evaluation: quality and safety evaluators, golden datasets, LLM-as-judge, caching, reports and CI gates.
Microsoft.Extensions.AI
18 articles about Microsoft.Extensions.AI: in-depth .NET and AI guides, senior interview questions and AI news on DotNet AI Hub.
Technologies 13
AI & MLBeginner
AI in .NET: The Complete Landscape for Developers
Map the 2026 AI in .NET ecosystem: Microsoft.Extensions.AI, Agent Framework, Semantic Kernel, vector data, MCP, ML.NET, ONNX and Foundry, and when to use each.
AI & MLIntermediate
Function Calling and Tool Use with LLMs in C#
Master function calling in C# with Microsoft.Extensions.AI: AIFunctionFactory, FunctionInvokingChatClient, parallel calls, approvals, security and tests.
AI & MLAdvanced
Observability and Cost Control for LLM Apps in .NET
Learn observability and cost control for .NET LLM apps, covering OpenTelemetry GenAI conventions, token tracking, caching, model routing and 429 retries.
AI & MLAdvanced
Local AI in .NET: ONNX Runtime, Ollama and Foundry Local
Run LLMs locally in .NET with ONNX Runtime GenAI, Ollama and Foundry Local: small language models, GPUs and NPUs, quantization and IChatClient.
AI & MLAdvanced
Model Context Protocol (MCP) in C#: Build Servers and Clients
Build Model Context Protocol servers and clients in C# with the official SDK 2.x: tools, resources, Streamable HTTP, OAuth, security and VS Code setup.
AI & MLIntermediate
Microsoft Agent Framework: Build AI Agents in C#
Build AI agents in C# with Microsoft Agent Framework 1.x: ChatClientAgent, sessions, tools, MCP, workflows, human approval, hosting and migration.
AI & MLIntermediate
Microsoft.Extensions.AI: Unified AI Abstractions for .NET
Master Microsoft.Extensions.AI: IChatClient, IEmbeddingGenerator, streaming, tool calling, middleware pipelines, DI registration, custom clients and testing.
AI & MLIntermediate
Using the Official OpenAI .NET Library for C#
A practical guide to the OpenAI .NET SDK: ChatClient, streaming, tool calls, structured outputs, the Responses API, embeddings, images, audio and retries.
AI & MLBeginner
Prompt Engineering for .NET Developers
A practical guide to prompt engineering for .NET developers, covering prompt anatomy, few-shot examples, reasoning models, templates and injection risks.
AI & MLAdvanced
Retrieval-Augmented Generation (RAG) in .NET: End-to-End Guide
Build production RAG in C#, covering ingestion, chunking, embeddings, hybrid retrieval, reranking, grounded prompts, citations and evaluation in .NET.
AI & MLIntermediate
Structured Outputs: Reliable JSON from LLMs in C#
Get reliable JSON from LLMs in C#: JSON mode vs structured outputs, typed Microsoft.Extensions.AI responses, JSON Schema from types, validation and retries.
AI & MLIntermediate
Embeddings and Vector Databases in .NET: A Practical Guide
Learn how embeddings and vector databases work in .NET: similarity metrics, HNSW indexes, Microsoft.Extensions.VectorData and pgvector, SQL Server and Qdrant.
Interview Questions 1
AI EngineeringSenior
LLM Integration Interview Questions for .NET Developers
Senior .NET interview questions on Microsoft.Extensions.AI, streaming, function calling, structured output, provider abstraction, retries and testing LLM code.
AI News 4
GitHub Copilot SDK Reaches General Availability with .NET Support
GitHub made the Copilot SDK generally available on June 2, 2026, letting .NET, TypeScript, Python and Go apps embed Copilot's agent runtime via a stable API.
Microsoft Agent Framework 1.0 Ships with Stable .NET and Python APIs
Microsoft Agent Framework reached 1.0 on April 2, 2026, with stable .NET and Python packages for agents and workflows while key integrations stayed in preview.
Microsoft Agent Framework Preview Unites Semantic Kernel and AutoGen
Microsoft shipped the first preview of Microsoft Agent Framework on October 1, 2025, an open-source .NET and Python successor to Semantic Kernel and AutoGen.
Microsoft.Extensions.AI and Vector Data Extensions Reach General Availability
Microsoft declared Microsoft.Extensions.AI and the Vector Data extensions generally available in May 2025, giving .NET a stable, provider-neutral AI layer.