A .NET Library for accessing OpenAI's API, provided as a community library. This Library allows you to integrate OpenAI's capabilities into your .NET applications with ease.

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• Please come and help us build the .NET AI community
• 
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⚠️ We now have new PackageId and new Namespace. ⚠️
⚠️ Betalgo.OpenAI is now Betalgo.Ranul.OpenAI ⚠️

Install-Package Betalgo.Ranul.OpenAI

Install-Package Betalgo.OpenAI.Utilities

• Wiki Page
• Feature Availability Table
• Change Logs
• Migration Guide for Breaking Changes

Maintenance of this project is made possible by all the bug reporters, contributors, and sponsors.

💖 Sponsors:
@betalgo, Laser Cat Eyes
@tylerje, @oferavnery, @MayDay-wpf, @AnukarOP, @Removable, @Scar11

The repository contains a sample project named OpenAI.Playground to help you understand how the library works. However, please exercise caution while experimenting, as some test methods may result in unintended consequences such as file deletion or fine-tuning.

!! It is highly recommended that you use a separate account instead of your primary account while using the playground. Some test methods may add or delete your files and models, potentially causing unwanted issues. !!

Your API Key can be obtained from here: https://platform.openai.com/account/api-keys
Your Organization ID can be found here: https://platform.openai.com/account/org-settings

var openAIService = new OpenAIService(new OpenAIOptions()
{
    ApiKey = Environment.GetEnvironmentVariable("MY_OPEN_AI_API_KEY")
});

"OpenAIServiceOptions": {
    "ApiKey": "Your api key goes here",
    "Organization": "Your Organization Id goes here (optional)",
    "UseBeta": "true/false (optional)"
}

(To use user secrets: Right-click your project name in "Solution Explorer", then click "Manage User Secrets". This is a good way to keep your API keys secure.)

serviceCollection.AddOpenAIService();

OR

serviceCollection.AddOpenAIService(settings => { settings.ApiKey = Environment.GetEnvironmentVariable("MY_OPEN_AI_API_KEY"); });

After injecting your service, you can retrieve it from the service provider:

var openAiService = serviceProvider.GetRequiredService<IOpenAIService>();

You can set a default model (optional):

openAiService.SetDefaultModelId(Models.Gpt_4o);

var completionResult = await openAiService.ChatCompletion.CreateCompletion(new ChatCompletionCreateRequest
{
    Messages = new List<ChatMessage>
    {
        ChatMessage.FromSystem("You are a helpful assistant."),
        ChatMessage.FromUser("Who won the world series in 2020?"),
        ChatMessage.FromAssistant("The Los Angeles Dodgers won the World Series in 2020."),
        ChatMessage.FromUser("Where was it played?")
    },
    Model = Models.Gpt_4o,
});
if (completionResult.Successful)
{
    Console.WriteLine(completionResult.Choices.First().Message.Content);
}

Due to time constraints, not all methods have been thoroughly tested or fully documented. If you encounter any issues, please report them or submit a pull request. Your contributions are always appreciated.

Needless to say, I cannot accept responsibility for any damage caused by using the library.

• Compatibility Enhancement: You can now use this library alongside the official OpenAI library and/or Semantic Kernel within the same project. The name changes in this update support this feature.

• Namespace and Package ID Update: The namespace and PackageId have been changed from Betalgo.OpenAI to Betalgo.Ranul.OpenAI.

• OpenAI Naming Consistency: We've standardized the use of "OpenAI" throughout the library, replacing any instances of "OpenAi" or other variations.

• Migration Instructions: Intellisense should assist you in updating your code. If it doesn't, please make the following changes manually:

  • Switch to the new NuGet package: Betalgo.Ranul.OpenAI instead of Betalgo.OpenAI.
  • Update all namespaces from OpenAI to Betalgo.Ranul.OpenAI.
  • Replace all occurrences of "OpenAi", "Openai", or any other variations with "OpenAI".

• Need Help?: If you encounter any issues, feel free to reach out via our Discord channel, Reddit channel, or GitHub discussions. We're happy to assist.

• Feedback Welcomed: If you notice any mistakes or missing name changes, please create an issue to let us know.

• Utilities Library Status: Please note that the Utilities library might remain broken for a while. I will focus on fixing it after completing the real-time API implementation.

• Fixed incorrect Azure Urls.
• Token usage response extended with PromptTokensDetails, audio_tokens and cached_tokens.
• Model list extended with Gpt_4o_2024_08_06 and Chatgpt_4o_latest.

• moved strict paremeter from ToolDefinition to FunctionDefinition

• Added Support for o1 reasing models (o1-mini and o1-preview).
• Added MaxCompletionTokens for chat completions.
• Added support for ParallelToolCalls for chat completions.
• Added support for ServiceTier for chat completions.
• Added support for ChunkingStrategy in Vector Store and Vector Store Files.
• Added support for Strict in ToolDefinition.
• Added support for MaxNumberResults and RankingOptions for FileSearchTool.
• Added support for ReasoningTokens for token usage.
• Added support for ResponseFormatOneOfType for AssistantResponse.cs.

For any issues, contributions, or feedback, feel free to reach out or submit a pull request.

Betalgo X: Betalgo (@Betalgo) / X (twitter.com)
Betalgo Linkedin: Betalgo | LinkedIn
Tolga X: Tolga Kayhan (@kayhantolga) / X (twitter.com)
Tolga Linkedin: Tolga Kayhan | LinkedIn