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brando90
brando90

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How to Sample Multiple Completions (n) Directly from Claude API without a for loop?

I'm using the Anthropic Claude API and I'm trying to generate multiple completions (n completions) for a given prompt in a single API call. OpenAI's API provides an n parameter in their sampling settings to achieve this, but I can't find an equivalent option in the Claude API.

My Current Approach:

I'm currently using a retry mechanism to handle potential errors during API calls, which looks like this:

from tenacity import retry, stop_after_attempt, wait_exponential

def before_sleep(retry_state):
    print(f"(Tenacity) Retry, error that caused it: {retry_state.outcome.exception()}")

def retry_error_callback(retry_state):
    exception = retry_state.outcome.exception()
    exception_str = str(exception)
    if "prompt is too long" in exception_str and "400" in exception_str:
        raise exception
    return 'No error that requires us to exit early.'

@retry(stop=stop_after_attempt(20), wait=wait_exponential(multiplier=2, max=256), 
       before_sleep=before_sleep, retry_error_callback=retry_error_callback)
def call_to_anthropic_client_api_with_retry(gen: AnthropicGenerator, prompt: str) -> dict:
    response = gen.llm.messages.create(
        model=gen.model,
        max_tokens=gen.sampling_params.max_tokens,
        system=gen.system_prompt,
        messages=[
            {"role": "user", "content": [{"type": "text", "text": prompt}]}
        ],
        temperature=gen.sampling_params.temperature,
        top_p=gen.sampling_params.top_p,
        n=gen.sampling_params.n,  # Intended to generate multiple completions
        stop_sequences=gen.sampling_params.stop[:3],
    )
    return response
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Problem:

I can't find an n parameter in the Anthropic API documentation that allows generating multiple completions in one request.

Questions:

  1. Does the Claude API support generating multiple completions (n completions) directly within a single API call?
  2. If not, is there a recommended workaround or best practice to achieve this without resorting to looping multiple requests? Any guidance or suggestions would be greatly appreciated!

cross: https://stackoverflow.com/questions/78873304/how-to-sample-multiple-completions-n-directly-from-claude-api-without-a-for-lo

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