Episode 268 - The New @langchain/google Package

Episode 264 of the Two Voice Devs podcast, hosted by Mark and Allen, titled "Episode 268 - The New @langchain/google Package" was published on February 19, 2026 and runs 18 minutes.

February 19, 2026 ·18m · Two Voice Devs

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Summary

Allen has been busy! This week, he unveils the new `@langchain/google` package for LangChain JS. This major update consolidates five previous libraries into a single, standardized, and powerful tool for developers working with Gemini and Vertex AI. Allen walks Mark through the motivation behind the change, the focus on backward compatibility, and the exciting new features like simplified multimodal input/output and text-to-speech support. If you're building with Google AI and JavaScript, this is the update you've been waiting for.[00:00:57] The confusion of previous packages[00:02:52] Creating a unified package[00:03:45] Introducing @langchain/google[00:04:35] Backward compatibility[00:06:48] Multimodal inputs[00:07:54] Standardizing output and image generation[00:08:58] Text-to-Speech support[00:11:29] Simplifying parameters and reasoning[00:14:55] Future roadmap#LangChain #Gemini #NanoBanana #TextToSpeech #GoogleAI #JavaScript #TypeScript #VertexAI #OpenSource #AI #WebDevelopment #TwoVoiceDevs

Episode Description

Allen has been busy! This week, he unveils the new `@langchain/google` package for LangChain JS. This major update consolidates five previous libraries into a single, standardized, and powerful tool for developers working with Gemini and Vertex AI. Allen walks Mark through the motivation behind the change, the focus on backward compatibility, and the exciting new features like simplified multimodal input/output and text-to-speech support. If you're building with Google AI and JavaScript, this is the update you've been waiting for.

[00:00:57] The confusion of previous packages

[00:02:52] Creating a unified package

[00:03:45] Introducing @langchain/google

[00:04:35] Backward compatibility

[00:06:48] Multimodal inputs

[00:07:54] Standardizing output and image generation

[00:08:58] Text-to-Speech support

[00:11:29] Simplifying parameters and reasoning

[00:14:55] Future roadmap

#LangChain #Gemini #NanoBanana #TextToSpeech #GoogleAI #JavaScript #TypeScript #VertexAI #OpenSource #AI #WebDevelopment #TwoVoiceDevs

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