The Chinese AI server maker plans to raise 8 billion yuan on ChiNext. The listing committee questioned its margins and the sustainability of operating growth.
LangChain lands $300 million Series C at $3 billion valuation
CapitalG led the financing, which values the AI agent software company at more than double the level of its previous funding round.

AI agent software company LangChain said November 13, 2026, that a Series C financing brought in $300 million at a valuation of $3 billion. The round was led by CapitalG and included Singapore’s GIC, alongside DFJ Growth, IVP and Sapphire Ventures.
About a year earlier, LangChain raised $125 million in financing led by IVP that valued the business at $1.25 billion. Its latest valuation is more than double that level.
LangChain’s origins date to an open-source project launched in 2022. That project handled web searches, API calls and database interactions, among the tasks early-stage large language models found difficult. LangChain subsequently redirected its attention to managing AI agents.
The company says it does not aim to tie users of LangSmith, its software for creating and managing agents, to any one model, cloud or ecosystem. It puts the product’s customer count at 7,000, with Harvey, Rippling, Clay, NVIDIA, Toyota and Salesforce among those it names.
