Class ChatOllama

Deprecated

Deprecated in favor of the @langchain/ollama package. Import from @langchain/ollama instead.

A class that enables calls to the Ollama API to access large language models in a chat-like fashion. It extends the SimpleChatModel class and implements the OllamaInput interface.

Example

const prompt = ChatPromptTemplate.fromMessages([
  [
    "system",
    `You are an expert translator. Format all responses as JSON objects with two keys: "original" and "translated".`,
  ],
  ["human", `Translate "{input}" into {language}.`],
]);

const model = new ChatOllama({
  baseUrl: "http://api.example.com",
  model: "llama2",
  format: "json",
});

const chain = prompt.pipe(model);

const result = await chain.invoke({
  input: "I love programming",
  language: "German",
});

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