⚠️ Please switch to using the new 'service' library if you need to use OpenAiService. The old 'client' OpenAiService is deprecated as of 0.10.0.
⚠️OpenAI has deprecated all Engine-based APIs. See Deprecated Endpoints below for more info.

Java libraries for using OpenAI's GPT-3 api.

Includes the following artifacts:

• api : request/response POJOs for the GPT-3 APIs.
• client : a basic retrofit client for the GPT-3 endpoints, includes the api module
• service : A basic service class that creates and calls the client. This is the easiest way to get started.

as well as an example project using the service.

• Models
• Completions
• Chat Completions
• Edits
• Embeddings
• Files
• Fine-tunes
• Images
• Moderations

• Engines

implementation 'com.theokanning.openai-gpt3-java:<api|client|service>:<version>'

   <dependency>
    <groupId>com.theokanning.openai-gpt3-java</groupId>
    <artifactId>{api|client|service}</artifactId>
    <version>version</version>       
   </dependency>

If you want to make your own client, just import the POJOs from the api module. Your client will need to use snake case to work with the OpenAI API.

If you're using retrofit, you can import the client module and use the OpenAiApi.
You'll have to add your auth token as a header (see AuthenticationInterceptor) and set your converter factory to use snake case and only include non-null fields.

If you're looking for the fastest solution, import the service module and use OpenAiService.

⚠️The OpenAiService in the client module is deprecated, please switch to the new version in the service module.

OpenAiService service = new OpenAiService("your_token");
CompletionRequest completionRequest = CompletionRequest.builder()
        .prompt("Somebody once told me the world is gonna roll me")
        .model("ada")
        .echo(true)
        .build();
service.createCompletion(completionRequest).getChoices().forEach(System.out::println);

If you need to customize OpenAiService, create your own Retrofit client and pass it in to the constructor. For example, do the following to add request logging (after adding the logging gradle dependency):

ObjectMapper mapper = defaultObjectMapper();
OkHttpClient client = defaultClient(token, timeout)
        .newBuilder()
        .interceptor(HttpLoggingInterceptor())
        .build();
Retrofit retrofit = defaultRetrofit(client, mapper);

OpenAiApi api = retrofit.create(OpenAiApi.class);
OpenAiService service = new OpenAiService(api);

All the example project requires is your OpenAI api token

export OPENAI_TOKEN="sk-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX"
./gradlew example:run

OpenAI has deprecated engine-based endpoints in favor of model-based endpoints. For example, instead of using v1/engines/{engine_id}/completions, switch to v1/completions and specify the model in the CompletionRequest. The code includes upgrade instructions for all deprecated endpoints.

I won't remove the old endpoints from this library until OpenAI shuts them down.

Published under the MIT License