Eino is CloudWeGo's Go framework for LLM applications: chat models, tools, graphs and a ReAct agent, in the style of LangChain but written for Go. Its OpenAI component ( github.com/cloudwego/eino-ext/components/model/openai ) is the one most people use with self-hosted or hosted OpenAI-compatible servers such as vLLM, Ollama's /v1 endpoint, LiteLLM or a gateway. The setup is three fields. The behaviour around them is less obvious, so I tested eino v0.7.13 and the eino-ext OpenAI component v...