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LangChain4j

@langchain4j.dev

232 Following776 Followers

Effortlessly build LLM-powered applications in Java, including chatbots, agents, structured data extraction and RAG: https://github.com/langchain4j/langchain4j

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@langchain4j.devOct 8, 2026, 8:46 AM

#LangChain4j 1.22.0 is out!

Highlights:
- OpenAI Decisions API support
- AWS Bedrock batch inference
- Automatic prompt caching for Anthropic

Thanks to all contributors!

github.com/langchain4j/...

@lomagnette.bsky.socialOct 5, 2026, 12:48 PMReposted by @langchain4j.dev

Day one of @devoxx.com done, and my first deep dive on @langchain4j.dev and agentic patterns is in the books. Building agents in #Java, with real code, is pure developer bliss.

Now time to enjoy the day. Tonight: our @bejug.bsky.social BOF. Java friends, come say hi!

m.devoxx.com/events/dvbe2...

@langchain4j.devOct 2, 2026, 12:45 PM

#LangChain4j 1.21.0 is out! 🚀

Meet Decision Models: instant yes/no, choice and scale answers with probabilities.
Decision Services turn any Java interface into a classifier.
Plus model routing, re-ranking, tool selection, guardrails and agentic routing!

github.com/langchain4j/...

@langchain4j.devSep 4, 2026, 1:39 PM

#LangChain4j 1.20.0 is out!

Headline features: async/reactive AI Services, and opt-in Jackson 3.

github.com/langchain4j/...

@rabauer.devAug 27, 2026, 1:45 PMReposted by @langchain4j.dev

Java plus a real AI model, built with @langchain4j.dev, plus deploying to @azure.microsoft.com. Sounds like a whole day gone before lunch. Today @bbenz.bsky.social and I find out live, no prep hidden off-screen.
youtube.com/live/TI7_Wz5...
#Java #AI #AzureAIFoundry

youtube.comWhy Deploying Java AI Apps to the cloud is Easier Than You ThinkJava app. Real AI model. Deployed to Azure. Everyone assumes that's a whole day gone before lunch, maybe two. Is it?What actually eats the time on a build li...
@langchain4j.devSep 16, 2025, 11:50 AM

#LangChain4j 1.5.0 is out! 🎉

This release includes the #MCP registry client, enhancements to the #Agentic module, as well as improvements in multimodality and caching

github.com/langchain4j/...

github.comRelease 1.5.0 and 1.5.0-beta11 · langchain4j/langchain4jNotable Changes MCP: initial registry client implementation by @jmartisk in #3684 Agentic: asynchronous agents by @mariofusco in #3643 Agentic: missing tools features by @mariofusco in #3660 Googl...
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