openai4j and openai-java-sdk

These are competitors offering overlapping Java client implementations for the same OpenAI API, with openai4j providing more comprehensive feature coverage including Assistants-v2 and Batch operations compared to the more basic openai-java-sdk.

openai4j
47
Emerging
openai-java-sdk
46
Emerging
Maintenance 2/25
Adoption 10/25
Maturity 16/25
Community 19/25
Maintenance 0/25
Adoption 10/25
Maturity 16/25
Community 20/25
Stars: 403
Forks: 54
Downloads: —
Commits (30d): 0
Language: Java
License: MIT
Stars: 120
Forks: 26
Downloads: —
Commits (30d): 0
Language: Java
License: MIT
Stale 6m No Package No Dependents
Stale 6m No Package No Dependents

About openai4j

Lambdua/openai4j

Java client library for OpenAI API.Full support for all OpenAI API models including Completions, Chat, Edits, Embeddings, Audio, Files, Assistants-v2, Images, Moderations, Batch, and Fine-tuning.

Built on Retrofit and OkHttpClient, the library offers both synchronous and asynchronous streaming APIs, with vision capabilities for image analysis and tool/function calling support. It's structured as modular Maven artifacts—separating POJOs (api module) from service implementations—allowing developers to either use the full OpenAiService or build custom clients with standardized domain objects. The client handles environment variable configuration, connection pooling, and customizable interceptors for retry logic and load balancing.

About openai-java-sdk

devlive-community/openai-java-sdk

Provides an easy-to-use SDK for Java developers to interact with the APIs of open AI models.

Related comparisons

openai4j and jvm-openai openai4j and openai-java openai4j and Easy-open-ai openai4j and openai-for-java openai4j and assistant-api-java openai4j and OpenAI_SDK

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