Unverified50% confidenceFactExact time
LangChain提供统一的ChatModel接口，底层无论是OpenAI的GPT-4o、Anthropic的Claude还是本地部署的Llama，调用方式完全一致
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/7/2026
First Seen
Valid until: 10/5/2026
Sources
LangChain 1.0全面解析：三大框架与AI应用开发实战指南
bilibiliClaudeCode教程7/6/2026
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