Betalgo.OpenAI.GPT3 6.7.0

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Additional Details

PackageId is updated to Betalgo.OpenAI, Please use the new packageId(Betalgo.OpenAI) to get the latest updates.

There is a newer version of this package available.
See the version list below for details.
dotnet add package Betalgo.OpenAI.GPT3 --version 6.7.0
NuGet\Install-Package Betalgo.OpenAI.GPT3 -Version 6.7.0
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Betalgo.OpenAI.GPT3" Version="6.7.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Betalgo.OpenAI.GPT3 --version 6.7.0
#r "nuget: Betalgo.OpenAI.GPT3, 6.7.0"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Betalgo.OpenAI.GPT3 as a Cake Addin
#addin nuget:?package=Betalgo.OpenAI.GPT3&version=6.7.0

// Install Betalgo.OpenAI.GPT3 as a Cake Tool
#tool nuget:?package=Betalgo.OpenAI.GPT3&version=6.7.0

Dotnet SDK for OpenAI Chat GPT, GPT-3 and DALL·E


Install-Package Betalgo.OpenAI.GPT3

Dotnet SDK for OpenAI Chat GPT, GPT-3 and DALL·E
GPT-3 doesn't have any official .Net SDK.

Checkout the wiki page:

NOTE for v6.7.0

I know we are all excited about new Chat Gpt APIs, so I tried to rush this version. It's nearly 4 AM here.
Be aware! It might have some bugs, also the next version may have breaking changes. Because I didn't like namings but I don't have time to think about it at the moment. Whisper is coming soon to.

Enjoy your new Methods! Don't forget to star the repo if you like it.


  • ChatGPT
  • Azure OpenAI Support
  • Image (DALL·E)
  • Models
  • Completions
  • Edit
  • Mars
  • Embeddings
  • Files
  • Fine-tunes
  • Moderation
  • Tokenizer Support
  • Whisper
  • Rate limit support

For changelogs please go to end of the document.

Visit to get your API key. Also documentation with more detail is avaliable there.

Sample Usages

The repository contains a sample project named OpenAI.Playground that you can refer to for a better understanding of how the library works. However, please exercise caution while experimenting with it, as some of the test methods may result in unintended consequences such as file deletion or fine tuning.

Your API Key comes from here -->

Your Organization ID comes from here -->

Without using dependency injection:

var openAiService = new OpenAIService(new OpenAiOptions()
    ApiKey =  Environment.GetEnvironmentVariable("MY_OPEN_AI_API_KEY")

Using dependency injection:

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

(How to use user secret ?
Right click your project name in "solution explorer" then click "Manage User Secret", it is a good way to keep your api keys)


Use it like below but do NOT put your API key directly to your source code.

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

After injecting your service you will be able to get it from service provider

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

You can set default model(optional):


Chat Gpt Sample

var completionResult = await sdk.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.FromAssistance("The Los Angeles Dodgers won the World Series in 2020."),
        ChatMessage.FromUser("Where was it played?")
    Model = Models.ChatGpt3_5Turbo,
    MaxTokens = 50//optional
if (completionResult.Successful)

Completions Sample

var completionResult = await openAiService.Completions.CreateCompletion(new CompletionCreateRequest()
    Prompt = "Once upon a time",
    Model = Models.TextDavinciV3

if (completionResult.Successful)
    if (completionResult.Error == null)
        throw new Exception("Unknown Error");
    Console.WriteLine($"{completionResult.Error.Code}: {completionResult.Error.Message}");

Completions Stream Sample

var completionResult = sdk.Completions.CreateCompletionAsStream(new CompletionCreateRequest()
      Prompt = "Once upon a time",
      MaxTokens = 50
   }, Models.Davinci);

   await foreach (var completion in completionResult)
      if (completion.Successful)
         if (completion.Error == null)
            throw new Exception("Unknown Error");

         Console.WriteLine($"{completion.Error.Code}: {completion.Error.Message}");

DALL·E Sample

var imageResult = await sdk.Image.CreateImage(new ImageCreateRequest
    Prompt = "Laser cat eyes",
    N = 2,
    Size = StaticValues.ImageStatics.Size.Size256,
    ResponseFormat = StaticValues.ImageStatics.ResponseFormat.Url,
    User = "TestUser"

if (imageResult.Successful)
    Console.WriteLine(string.Join("\n", imageResult.Results.Select(r => r.Url)));


Please note that due to time constraints, I was unable to thoroughly test all of the methods or fully document the library. If you encounter any issues, please do not hesitate to report them or submit a pull request - your contributions are always appreciated.

I initially developed this SDK for my personal use and later decided to share it with the community. As I have not maintained any open-source projects before, any assistance or feedback would be greatly appreciated. If you would like to contribute in any way, please feel free to reach out to me with your suggestions.

I will always be using the latest libraries, and future releases will frequently include breaking changes. Please take this into consideration before deciding to use the library. I want to make it clear that I cannot accept any responsibility for any damage caused by using the library. If you feel that this is not suitable for your purposes, you are free to explore alternative libraries or the OpenAI Web-API.



  • We all beeen waiting for this moment. Please enjoy Chat GPT API
  • Added support for Chat GPT API
  • Fixed Tokenizer Bug, it was not working properly.


  • Breaking Changes

    • Renamed Engine keyword to Model in accordance with OpenAI's new naming convention.
    • Deprecated DefaultEngineId in favor of DefaultModelId.
    • DefaultEngineId and DefaultModelId is not static anymore.
  • Added support for Azure OpenAI, a big thanks to @copypastedeveloper!

  • Added support for Tokenizer, inspired by @dluc's repository. Please consider giving the repo a star.

These two changes are recent additions, so please let me know if you encounter any issues.

  • Updated documentation links from to


  • Added Cancellation Token support, thanks to @robertlyson
  • Updated readme file, thanks to @qbm5, @gotmike, @SteveMCarroll
Product Compatible and additional computed target framework versions.
.NET net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages (6)

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Bootstrap UI OpenAI GPT3 components experience


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GitHub repositories (1)

Showing the top 1 popular GitHub repositories that depend on Betalgo.OpenAI.GPT3:

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manage k8s using c# blazor enhance by chatgpt ,try something new !使用blazor技术开发的内置OpenAI GPT的k8s 管理界面
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