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.
15 articles about Azure OpenAI & AI Foundry: in-depth .NET and AI guides, senior interview questions and AI news on DotNet AI Hub.
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.
Use Azure OpenAI in Microsoft Foundry (formerly Azure AI Foundry) from .NET: deployments, keyless auth, guardrails, quotas, PTUs, Agent Service and cost.
Build multimodal .NET apps that understand images, documents, speech and audio, and generate images and voice, with Microsoft.Extensions.AI and Azure AI.
A practical guide to the OpenAI .NET SDK: ChatClient, streaming, tool calls, structured outputs, the Responses API, embeddings, images, audio and retries.
Secure LLM apps in .NET: OWASP Top 10 for LLMs 2026, prompt injection defenses, Prompt Shields, PII redaction, output checks, least privilege and the EU AI Act.
Architect-level system design questions on an enterprise RAG platform in .NET: ingestion, retrieval, security trimming, caching and cost control.
At Build 2026 on June 2, Microsoft launched seven in-house MAI models, led by the MAI-Thinking-1 reasoning model and the MAI-Code-1-Flash coding model.
Microsoft and OpenAI amended their partnership on April 27, 2026: OpenAI can sell on any cloud, Azure ships first and Microsoft keeps IP rights through 2032.
Anthropic's Claude Opus 4.6 (February 5, 2026) added a 1M-token context in beta, adaptive thinking and agent teams, while keeping $5/$25 pricing.
On November 18, 2025, Anthropic committed to buy $30 billion of Azure compute and up to 1 GW of NVIDIA systems, while NVIDIA and Microsoft agreed to invest.
At Ignite on November 18, 2025, Microsoft introduced Agent 365, a control plane for enterprise AI agents, alongside Microsoft Foundry and Claude models in Foundry.
Microsoft's Whisper Leak research shows encrypted, streamed LLM responses can reveal conversation topics through packet sizes and timing. Key facts and fixes.
xAI released Grok 4 and the multi-agent Grok 4 Heavy on July 9, 2025, with a 256K-token API priced at $3 and $15 per million tokens and strong benchmark claims.
OpenAI released GPT-4.1, mini and nano in April 2025: API-first models with a 1M-token context, stronger coding and more literal instruction following.
DeepSeek-R1 arrived in January 2025 as an MIT-licensed open-weight reasoning model that DeepSeek says matches OpenAI o1, and it shook AI markets within a week.