LangChain4j

The latest version of #LangChain4J supports our latest #GPULlama3 version 0.4.0 for native GPU acceleration of #Java 25 AI Inference!

Release 1.12.1 and 1.12.1-beta21 · langchain4j/langchain4j Notable Changes Agentic: generate a HTML report of an agentic system topology and execution by @mariofusco in #4600 Agentic: allow to integrate an MCP tool as a non-AI agent by @mariofusco in #463...

#LangChain4j 1.12.1 is out! 🎉

github.com/langchain4j/...

I'll be at @devnexus.bsky.social 2026 in Atlanta next week helping to promote Open Source, and specifically @langchain4j.dev!

Come by booth 27 in the open source area and say hi (& also play a cool game that I built using @langchain4j.dev, agents, and @intellijidea.com)!

Building an AI Travel Assistant with GraalVM, Micronaut, and LangChain4j In this post, we'll build a Swiss travel assistant, that understands natural language queries, complete with recommendations are wishlist.

Building an AI Travel Assistant with GraalVM, @micronautfw.bsky.social, and @langchain4j.dev: medium.com/graalvm/buil... by @alina-yurenko.bsky.social

🛡️ Des garde-fous pour tes LLM avec LangChain4J 🛡️ I'm sorry, Dave. I'm afraid I can't do that. © HAL 9000

Si vous vous demandez comment ajouter un peu de sécurité dans vos chatbots, je vous propose de découvrir les guardrails grâce à @langchain4j.dev et AI Endpoints d'OVHcloud :
- 🇫🇷 philippart-s.github.io/blog/2026-02...
- 🏴󠁧󠁢󠁥󠁮󠁧󠁿 philippart-s.github.io/blog/2026-02...

💪 Zero Boilerplate #Java STDIO #MCP Servers with
@langchain4j.dev and @jbang.dev

You just need one #Java file.
JBang installed.
No build!

Then configure your custom MCP server to use with your favorite #AI #Agent harness, like #geminicli and friends!

Want to learn about @langchain4j.dev? If so, join me in-person at the #ConnecticutJavaUsersGroup on Tuesday February 10 for a #deepdive into everything @langchain4j.dev!

www.meetup.com/connecticut-...

Latest Gemini and Nano Banana Enhancements in LangChain4j A few days ago, LangChain4j 1.11.0 was released, and with this version, a few notable enhancements to the support of the Gemini model family have landed. Let’s dive in! New Image Generation Models (Ge...

In @langchain4j.dev 1.11.0, plenty of cool #Gemini enhancements! 🚀
Discover new #NanoBanana image generation (up to 4K)
Google Maps & Search grounding for #Gemini.
And no need to scrape, with the URL context tool!

Learn more: glaforge.dev/posts/2026/0...

Release 1.11.0 and 1.11.0-beta19 · langchain4j/langchain4j Notable Changes Agentic: support streaming by @mariofusco in #4350 Agentic: support multimodality by @mariofusco in #4436 Bedrock: support Guardrails by @jonathannaguin in #3988 Elasticsearch: hyb...

#LangChain4j 1.11.0 is out! 🎉

github.com/langchain4j/...

🤖L'IA et ses agents, comment ça marche ? 🔀 Mr. Anderson, welcome back. We missed you. © Agent Smith

La "nouvelle" trend en IA ce sont les agents 🤖.
En dehors de les déclarer dans vos outils préférés, vous voulez peut-être comprendre comment ça fonctionne et comment les développer.

Je vous propose de voir ça en @Java avec LangChain4j et Quarkus 🤩 !

📜

Today kicks off @jfokus.se in Stockholm 🇸🇪 and we just delivered our workshop on building with open source AI models using:

⚡️ #vLLM serve local LLM’s as a local API endpoint

🦜 @langchain4j.dev for adding LLM capabilities in our Java application

Was a huge hit! Slides ⬇️

Picocli / WIP (Work In Progress) & VSM (Value Stream Mapping), Wed, Jan 21, 2026, 7:00 PM | Meetup **Picocli, mets du Java dans ton terminal ! ([Stéphane Philippart](https://in.linkedin.com/in/philippartstephane))** Les CLI (Command Line Interface), tout le monde les ut

Demain, je serai au Mars JUG pour vous parler de @picocli.bsky.social et comment créer une CLI boostée à l'IA grâce à @langchain4j.dev et @quarkus.io 🤖.

Bien entendu, en utilisant tous nos modèles proposés par AI Endpoints d'#OVHcloud.

🎟️ Inscription : www.meetup.com/marseille-ja...

@jfokus.se is BACK for its 20th year and I’m so happy to be hosting a workshop on open source models & how to scale them up on #Kubernetes! We’ll feature projects including #vLLM + @langchain4j.dev + @promptfoo.bsky.social and more for enterprise AI deployment, app dev, and testing 🔥

Release 1.10.0 and 1.10.0-beta18 · langchain4j/langchain4j Notable Changes Model Catalog support for Anthropic, Gemini, OpenAI and Mistral by @haumacher in #4240 Agentic: Add observability and monitoring by @mariofusco in #4181 Anthropic: support latest t...

#LangChain4j 1.10.0 is out! 🎉

Thanks to everyone contributing and using the library!
Wishing you happy holidays and a restful end of the year! 🌟

github.com/langchain4j/...

Thanks a lot!

🚀 #LangChain4j just hit 10K ⭐ on GitHub!
Huge thanks to the community for all the support, contributions, and momentum! ❤️
Excited for what's ahead!

Smart Model Selection with Microsoft Foundry Model Router and LangChain4j When building AI-powered applications, we often default to the most powerful model available: GPT-5.2 for everything! It's the safe choice.

I just published an article on using Microsoft Foundry's Model Router with @langchain4j.dev. The router automatically selects the right model for each prompt.

www.linkedin.com/pulse/smart-...

New release of #GPULlama3.java v0.3.0 🚀

Faster NVIDIA inference & pure Java GPU demo (@quarkus.io + @langchain4j.dev, no native dependencies).

Learn more: gpullama3.dev
GitHub: github.com/beehive-lab/...

A great achievement from our team!

#opensource #Java #AI #LLM #GPU #TornadoVM

From Lonely Agents to Talking Teams: An introduction to A2A This article introduces A2A, a protocol that lets AI agents stop working in isolation and start collaborating as real “teams.” You’ll learn how agents can discover each other via agent cards, exchange...

AI agents working together instead of living in isolation? Yes please.
I wrote a new article on #A2A and how to use it in #Java today using @quarkus.io and @langchain4j.dev .
If you’re into agentic systems, this one’s for you 👇
lomagnette.github.io/posts/from-l...

Build LLM-Powered Apps with Quarkus and LangChain4j Join us for a guided tour through the possibilities of the LangChain4j framework! Chat with virtually any LLM provider (OpenAI, Gemini, HuggingFace, Azure, AWS, ...)? Generate AI images straight from…

Thanks @NYJavaSIG.bsky.social for having me talk about @langchain4j.dev and @quarkus.io ! Was a great turnout and it was nice meeting everyone!

The recording is available: youtu.be/x6V-at4mwcc

Thanks #GardenStateJUG and @nyjavasig.bsky.social for hosting me this week! I had a great time meeting everyone!

The slides from all my talks are available:
speakerdeck.com/edeandrea/de...

speakerdeck.com/edeandrea/de...

@langchain4j.dev @quarkus.io

Créer un Chatbot Intelligent avec LangChain4j | 08 décembre 2025 | ENSEIRB | Antonio Goncalves 🎯 Final stops of my 2025 LangChain4j JUG tour! Wrapping up the year with two more sessions on "Build an AI-Infused Chat Bot with LangChain4j": 📅 Thursday, December 4th - Strasbourg JUG https://lnkd....

See you soon at Strasbourg and Bordeaux to talk about @langchain4j.dev

www.linkedin.com/posts/agonca...

I'm on the road this week visiting 2 JUGs in the northeast U.S

Dec 3: #GardenStateJUG (@quarkus.io for #Spring Developers)
Dec 4: @nyjavasig.bsky.social (Deep Dive into @langchain4j.dev & @quarkus.io)

If you're in any of these areas come by and say hello!

Expect a new input guardrail in the next @langchain4j.dev release 🥳

Given a ModerationModel, this MessageModeratorInputGuardrail will moderate user messages

github.com/langchain4j/...

Release 1.9.0 and 1.9.0-beta16 · langchain4j/langchain4j Notable Changes Agentic: Introduce a generic agentic planner and reimplement all agentic patterns through it by @mariofusco in #3929 MCP: WebSocket transport support by @jmartisk in #4032 Gemini: ...

#LangChain4j 1.9.0 is out! 🎉

github.com/langchain4j/...

#java #langchain4j #ai #rag #quarkus #javachampion #brittany | Antonio Goncalves 🚀 LangChain4j is coming to Brittany! I'm excited to visit two Java User Groups in Brittany this week: 📅 Tuesday 25/11 - FinistDevs : https://lnkd.in/eUE7N8jF 📅 Wednesday 26/11 - Nantes Java User Gr...

Going to Britanny to talk about @langchain4j.dev at local Java User Groups

www.linkedin.com/feed/update/...

What a week at #DevoxxMA! First trip to Morocco was awesome! Saw lots of old friends and make many new ones! Special thanks to Abdel for everything!

I also couldn't be more proud that of the 95 talks, 2 of mine were rated in the top 5!

@quarkus.io @langchain4j.dev #Spring #TDD #AI

Let's call #gemini 3 Pro Preview from @langchain4j.dev

La belle surprise du jour : je serai finalement présent demain, vendredi 21 novembre, au DevFest Paris à 11h10 🥳🥳

Ce sera pour vous parler de @picocli.bsky.social pour créer une CLI et l'infuser d'IA avec AI Endpoints by OVHcloud 🤖 et @langchain4j.dev 🦜.

A demain 👋

sunset in background, learning groovy and ai in foreground

Exploring AI with Groovy™ using Ollama4j, LangChain4J, Spring AI 1.1, Embabel, Micronaut & Quarkus (also with AI tools examples):
groovy.apache.org/blog/groovy-ai
@groovy.apache.org @apache.org @quarkus.io @langchain4j.dev #embabel #groovylang #ollama4j #springai #Micronaut #holidaytips