# Anthropic

- Kind: `class`
- Package: [Aspire.Hosting.Foundry](/reference/api/csharp/aspire.hosting.foundry.md)
- Version: `13.4.0-preview.1.26281.18`
- Namespace: `Aspire.Hosting.Foundry`
- Target framework: `net8.0`
- Source: [GitHub](https://github.com/microsoft/aspire/blob/becb48e2d61099e35ae336d527d3875e928d6594/src/Aspire.Hosting.Foundry/FoundryModel.Generated.cs)

Models published by Anthropic.

## Definition

```csharp
namespace Aspire.Hosting.Foundry;

public static class Anthropic
{
    // ...
}
```

## Fields

- [ClaudeHaiku45](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudehaiku45) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- 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.
- [ClaudeMythosPreview](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudemythospreview) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- 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
- [ClaudeOpus41](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudeopus41) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- 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.
- [ClaudeOpus45](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudeopus45) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- 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
- [ClaudeOpus46](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudeopus46) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- 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
- [ClaudeOpus47](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudeopus47) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- Claude Opus 4.7 is our most capable generally available model, advancing performance across coding, enterprise workflows, and long-running agentic tasks.
- [ClaudeSonnet45](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudesonnet45) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- Claude Sonnet 4.5 is Anthropic's most capable model for complex agents and an industry leader for coding and computer use.
- [ClaudeSonnet46](/reference/api/csharp/aspire.hosting.foundry/anthropic/fields.md#claudesonnet46) : [FoundryModel](/reference/api/csharp/aspire.hosting.foundry/foundrymodel.md) `static` -- 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