# Anthropic Fields

- Package: [Aspire.Hosting.Foundry](/reference/api/csharp/aspire.hosting.foundry.md)
- Type: [Anthropic](/reference/api/csharp/aspire.hosting.foundry/anthropic.md)
- Kind: `Fields`
- Members: `8`

Models published by Anthropic.

## ClaudeHaiku45

- Name: `ClaudeHaiku45`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Haiku 4.5 delivers near-frontier performance for a wide range of use cases, and stands out as one of the best coding and agent models - with the right speed and cost to power free products and scaled sub-agents.

```csharp
public static readonly FoundryModel ClaudeHaiku45
```

## ClaudeMythosPreview

- Name: `ClaudeMythosPreview`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Mythos Preview (gated research preview) is a new class of intelligence for cybersecurity, coding, and long-running agents. Only available as a gated research preview with access prioritized for defensive cybersecurity use cases

```csharp
public static readonly FoundryModel ClaudeMythosPreview
```

## ClaudeOpus41

- Name: `ClaudeOpus41`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Opus 4.1 is an industry leader for coding. It delivers sustained performance on long-running tasks that require focused effort and thousands of steps, significantly expanding what AI agents can solve.

```csharp
public static readonly FoundryModel ClaudeOpus41
```

## ClaudeOpus45

- Name: `ClaudeOpus45`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Opus 4.5 is Anthropic’s most intelligent model, and an industry leader across coding, agents, computer use, and enterprise workflows. With a 200K token context window and 64K max output, Opus 4.5 is ideal for production code, sophisticated agents, o

```csharp
public static readonly FoundryModel ClaudeOpus45
```

## ClaudeOpus46

- Name: `ClaudeOpus46`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Opus 4.6 is the latest version of Anthropic's most intelligent model, and the world's best model for coding, enterprise agents, and professional work. With a 1M token context window and 128K max output, Opus 4.6 is ideal for production code, sophist

```csharp
public static readonly FoundryModel ClaudeOpus46
```

## ClaudeOpus47

- Name: `ClaudeOpus47`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Opus 4.7 is our most capable generally available model, advancing performance across coding, enterprise workflows, and long-running agentic tasks.

```csharp
public static readonly FoundryModel ClaudeOpus47
```

## ClaudeSonnet45

- Name: `ClaudeSonnet45`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Sonnet 4.5 is Anthropic's most capable model for complex agents and an industry leader for coding and computer use.

```csharp
public static readonly FoundryModel ClaudeSonnet45
```

## ClaudeSonnet46

- Name: `ClaudeSonnet46`
- Modifiers: `static` `readonly`
- Returns: [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md)
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Claude Sonnet 4.6 delivers frontier intelligence at scale -- built for coding, agents, and enterprise workflows. With a 1M token context window and 128K max output, Sonnet 4.6 is ideal for coding, agents, office tasks, financial analysis, cybersecurity, and c

```csharp
public static readonly FoundryModel ClaudeSonnet46
```