langchain_deepseek_v4
LangChain chat model integration for the current DeepSeek Chat Completions API.
Install the distribution package and import the integration module:
pip install langchain_deepseek_v4
This implementation targets the DeepSeek API documented at https://api-docs.deepseek.com, including:
- Tool calling
- JSON structured output through DeepSeek JSON Output
- Thinking mode and
reasoning_content - Streaming chunks that preserve reasoning deltas
- Multi-turn conversations that pass tool-call reasoning back to DeepSeek
from langchain_deepseek import ChatDeepSeek
llm = ChatDeepSeek(
model="deepseek-v4-pro",
api_key="...",
thinking={"type": "enabled"},
reasoning_effort="high",
)
msg = llm.invoke("Say hello in JSON: {\"message\": \"...\"}")
1 maintainer
Metadata
1 maintainer
Release files for langchain-deepseek-v4 0.1.0
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Total release size: 27.2 kB
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