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LangChain releases v1.3.13 and langchain-openai v1.3.5 with explicit prompt caching

LangChain released versions 1.3.13 and langchain-openai 1.3.5, adding explicit prompt caching support for OpenAI models. This allows developers to mark reusable prompt prefixes for reduced latency and cost. The update also includes a new 'meta' extra for langchain-meta integration and refreshed model profiles.

0 engagement·2 sources·Fri, Jul 10, 2026, 06:58 PM
The releases introduce explicit prompt caching for OpenAI models, enabling developers to designate reusable prompt prefixes that can be cached to reduce latency and cost. LangChain 1.3.13 adds a `meta` extra and support for `langchain-meta` in `init_chat_model`. The langchain-openai 1.3.5 release also includes refreshed model profile data. Both releases are dated 2026-07-10.

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OpenAI(company)LangChain(tool)langchain-openai(tool)LangChain(company)prompt caching(concept)

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Tool ReleaseThu, Jul 9, 2026, 05:56 PM

LangChain Fireworks partner package v1.4.4 released with cached prompt token reporting

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0 engagement·1 source·github
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4 engagement·1 source·reddit
Tool ReleaseWed, Jul 8, 2026, 10:38 PM

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4 engagement·2 sources·github
Tool ReleaseSun, Jul 5, 2026, 09:30 PM

LangChain-Mistralai v1.1.6 adds citation metadata support

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Tool ReleaseSun, Jul 5, 2026, 08:53 PM

LangChain-OpenRouter releases v0.2.6 with custom HTTP header support

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0 engagement·1 source·github