# OpenAI Fields - Package: [Aspire.Hosting.GitHub.Models](/reference/api/csharp/aspire.hosting.github.models.md) - Type: [OpenAI](/reference/api/csharp/aspire.hosting.github.models/openai.md) - Kind: `Fields` - Members: `17` Models published by OpenAI. ## OpenAIGpt41 - Name: `OpenAIGpt41` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) gpt-4.1 outperforms gpt-4o across the board, with major gains in coding, instruction following, and long-context understanding ```csharp public static readonly GitHubModel OpenAIGpt41 ``` ## OpenAIGpt41Mini - Name: `OpenAIGpt41Mini` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) gpt-4.1-mini outperform gpt-4o-mini across the board, with major gains in coding, instruction following, and long-context handling ```csharp public static readonly GitHubModel OpenAIGpt41Mini ``` ## OpenAIGpt41Nano - Name: `OpenAIGpt41Nano` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) gpt-4.1-nano provides gains in coding, instruction following, and long-context handling along with lower latency and cost ```csharp public static readonly GitHubModel OpenAIGpt41Nano ``` ## OpenAIGpt4o - Name: `OpenAIGpt4o` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) OpenAI's most advanced multimodal model in the gpt-4o family. Can handle both text and image inputs. ```csharp public static readonly GitHubModel OpenAIGpt4o ``` ## OpenAIGpt4oMini - Name: `OpenAIGpt4oMini` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) An affordable, efficient AI solution for diverse text and image tasks. ```csharp public static readonly GitHubModel OpenAIGpt4oMini ``` ## OpenAIGpt5 - Name: `OpenAIGpt5` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) gpt-5 is designed for logic-heavy and multi-step tasks. ```csharp public static readonly GitHubModel OpenAIGpt5 ``` ## OpenAIGpt5ChatPreview - Name: `OpenAIGpt5ChatPreview` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) gpt-5-chat (preview) is an advanced, natural, multimodal, and context-aware conversations for enterprise applications. ```csharp public static readonly GitHubModel OpenAIGpt5ChatPreview ``` ## OpenAIGpt5Mini - Name: `OpenAIGpt5Mini` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) gpt-5-mini is a lightweight version for cost-sensitive applications. ```csharp public static readonly GitHubModel OpenAIGpt5Mini ``` ## OpenAIGpt5Nano - Name: `OpenAIGpt5Nano` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) gpt-5-nano is optimized for speed, ideal for applications requiring low latency. ```csharp public static readonly GitHubModel OpenAIGpt5Nano ``` ## OpenAIO1 - Name: `OpenAIO1` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) Focused on advanced reasoning and solving complex problems, including math and science tasks. Ideal for applications that require deep contextual understanding and agentic workflows. ```csharp public static readonly GitHubModel OpenAIO1 ``` ## OpenAIO1Mini - Name: `OpenAIO1Mini` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) Smaller, faster, and 80% cheaper than o1-preview, performs well at code generation and small context operations. ```csharp public static readonly GitHubModel OpenAIO1Mini ``` ## OpenAIO1Preview - Name: `OpenAIO1Preview` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) Focused on advanced reasoning and solving complex problems, including math and science tasks. Ideal for applications that require deep contextual understanding and agentic workflows. ```csharp public static readonly GitHubModel OpenAIO1Preview ``` ## OpenAIO3 - Name: `OpenAIO3` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) o3 includes significant improvements on quality and safety while supporting the existing features of o1 and delivering comparable or better performance. ```csharp public static readonly GitHubModel OpenAIO3 ``` ## OpenAIO3Mini - Name: `OpenAIO3Mini` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) o3-mini includes the o1 features with significant cost-efficiencies for scenarios requiring high performance. ```csharp public static readonly GitHubModel OpenAIO3Mini ``` ## OpenAIO4Mini - Name: `OpenAIO4Mini` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) o4-mini includes significant improvements on quality and safety while supporting the existing features of o3-mini and delivering comparable or better performance. ```csharp public static readonly GitHubModel OpenAIO4Mini ``` ## OpenAITextEmbedding3Large - Name: `OpenAITextEmbedding3Large` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) Text-embedding-3 series models are the latest and most capable embedding model from OpenAI. ```csharp public static readonly GitHubModel OpenAITextEmbedding3Large ``` ## OpenAITextEmbedding3Small - Name: `OpenAITextEmbedding3Small` - Modifiers: `static` `readonly` - Returns: [GitHubModel](/reference/api/csharp/aspire.hosting.github.models/githubmodel.md) - Source: [GitHub](https://github.com/microsoft/aspire/blob/cbc352350f1a9bafbaff10d14a2c8de4ac186a48/src/Aspire.Hosting.GitHub.Models/GitHubModel.Generated.cs) Text-embedding-3 series models are the latest and most capable embedding model from OpenAI. ```csharp public static readonly GitHubModel OpenAITextEmbedding3Small ```