HowToUseOpenAiProviderSmaller 1 2 3 4 5 6 7 8 9using LangChain.Providers.OpenAI.Predefined; using static LangChain.Chains.Chain; var model = new OpenAiLatestFastChatModel("your_openAI_key"); var chain = Set("Hello!") | LLM(model); Console.WriteLine(await chain.RunAsync("text"));