How to stop response generation?

[hafsalm]

What is the best way to stop the model response while it's generating longer content? Something like a kill switch for answer generation.

[dosubot[bot]]

🤖

Hi @hafsalm, good to see you again! Hope you're doing well.

To stop the generation of longer content by the model in the LangChain framework, you can use a break statement inside the for-await loop. This will stop the loop and hence the generation of content. Here's an example:

import { OpenAI } from "langchain/llms/openai";

const model = new OpenAI({
  maxTokens: 25,
});

const stream = await model.stream("Tell me a joke.");

let counter = 0;
for await (const chunk of stream) {
  console.log(chunk);
  counter++;
  if (counter > 10) { // or any condition you want to stop the generation
    break;
  }
}

In this example, the generation of content will stop after 10 chunks. You can replace the condition inside the if statement with any condition you want to stop the generation. This is a simple and effective way to implement a "kill switch" for answer generation.

You can find more details about this in the examples/src/models/llm/llm_streaming_stream_method.ts file in the LangChainJS repository.

I hope this helps! If you have any other questions, feel free to ask.

Best,
Dosu

Sources

• examples/src/models/llm/llm_streaming_stream_method.ts
• examples/src/chains/openai_functions_structured_format.ts

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