OpenAI Launches Stable .NET Library

In a significant move for developers, OpenAI has officially launched the stable version of its .NET library, following the beta release in June. This robust library, available as a NuGet package, is now equipped to support the groundbreaking GPT-4o and its mini counterpart, along with the full spectrum of the OpenAI REST API.

Key Features for Developers

Among the exciting features introduced, developers will benefit from both synchronous and asynchronous APIs, allowing for versatile programming options. One of the standout features includes support for streaming chat completions via IAsyncEnumerable<T>, paving the way for more interactive and dynamic applications.

Moreover, extensibility has been a key focus in this update. OpenAI has prioritized enabling the developer community to build upon the existing library, fostering innovation and enhancing existing functionalities. With compatibility across all .NET platforms that adhere to .NET Standard 2.0, this library is poised to be an invaluable tool for a diverse range of .NET applications.

Breaking Changes in the Stable Release

For those who have been using the beta version (2.0.0-beta.*), it's important to note that this stable release includes several breaking changes aimed at improving the API’s consistency and overall usability. Key changes include:

- The ChatMessageContent is now structured to encapsulate content parts within ChatMessage, ChatCompletion, and StreamingChatCompletionUpdate.

- Representations of function arguments have been updated to BinaryData in areas such as ChatToolCall and StreamingChatToolCallUpdate.

- Renaming conventions have been implemented for clarity: for instance, ApplicationId is now UserAgentApplicationId, and FileClient has been updated to OpenAIFileClient.

- Deprecated methods, like Auto and None in ChatFunctionChoice, have been replaced with more intuitive options such as CreateAutoChoice() and CreateNoneChoice().

Open-Source and Future Plans

These enhancements not only improve clarity but also ensure consistency throughout the API, allowing developers to navigate it with ease.

The OpenAI library for .NET is proudly open-source and benefits from ongoing contributions from the developer community on GitHub. With plans for continued updates, it will remain in sync with OpenAI's latest features, ensuring developers have access to cutting-edge tools. This launch positions the .NET library alongside OpenAI's existing libraries for Python and JavaScript/TypeScript, creating a seamless experience for developers working across various platforms.

Summary

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