Unverified80% confidenceFactTime unknown
run.messages中的reasoning字段（大模型推理过程）目前仅OpenAI O系列模型支持
1
Sources
80%
Confidence
Medium-term (~90 days)
Relevance
6/1/2026
First Seen
Valid until: 8/30/2026
Sources
LangChain 1.3 事件流实战：4大视角实时监控Agent运行全过程
bilibili小天老师的AI大课堂
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