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azure-ai-openai-dotnet

Azure OpenAI SDK for .NET: chat completions, embeddings, image generation, audio transcription and assistants.

Kind: Skill
Works with: Claude Code
Languages: C# / .NET
Source: microsoft/skills @ 2130750147de
Path: .github/plugins/azure-sdk-dotnet/skills/azure-ai-openai-dotnet/SKILL.md
License: MIT
Jobs: Implementation

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# Azure.AI.OpenAI (.NET)

Client library for Azure OpenAI Service providing access to OpenAI models including GPT-4, GPT-4o, embeddings, DALL-E, and Whisper.

## Installation

```bash
dotnet add package Azure.AI.OpenAI

# For OpenAI (non-Azure) compatibility
dotnet add package OpenAI
```

**Current Version**: 2.1.0 (stable)

## Environment Variables

```bash
AZURE_OPENAI_ENDPOINT=https://<resource-name>.openai.azure.com  # Required: Azure OpenAI endpoint
AZURE_OPENAI_API_KEY=<api-key>  # Only required for AzureKeyCredential auth
AZURE_OPENAI_DEPLOYMENT_NAME=gpt-4o-mini  # Required: model deployment name
AZURE_TOKEN_CREDENTIALS=prod  # Required only if DefaultAzureCredential is used in production
```

## Client Hierarchy

```
AzureOpenAIClient (top-level)
├── GetChatClient(deploymentName)      → ChatClient
├── GetEmbeddingClient(deploymentName) → EmbeddingClient
├── GetImageClient(deploymentName)     → ImageClient
├── GetAudioClient(deploymentName)     → AudioClient
└── GetAssistantClient()               → AssistantClient
```

## Authentication

### API Key Authentication

```csharp
using Azure;
using Azure.AI.OpenAI;

AzureOpenAIClient client = new(
…