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langchain-ai/langchain

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langchain-ai/langchain

langchain-ai/langchain

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langchain-ai/langchain

The agent engineering platform

https://docs.langchain.com/langchain/

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langchain-ai/langchain

Stars130,533Fork21,502

langchain-ai/langchain

The agent engineering platform

https://docs.langchain.com/langchain/

agentsaiai-agentsanthropicchatgptdeepagentsenterpriseframeworkgeminigenerative-ailangchainlanggraphllmmultiagentopen-sourceopenaipydanticpythonrag

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Mature, low churn

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langchain-openai==1.1.16

release notes

Published 4/21/2026

Safe upgrade

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Changes since langchain-openai==1.1.15

release(openai): 1.1.16 (#36927) fix(openai): tolerate prompt_cache_retention drift in streaming (#36925)

Diff stats+304/-35

12 files

Main areastestslibsconfigci

langchain-openai==1.1.16

release notes

Published 4/21/2026

Safe upgrade

Release notes

Changes since langchain-openai==1.1.15

release(openai): 1.1.16 (#36927) fix(openai): tolerate prompt_cache_retention drift in streaming (#36925)

Diff stats+304/-35

12 files

Main areastestslibsconfigci