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104 lines
3.4 KiB
104 lines
3.4 KiB
import requests
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import os
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class Anthropic:
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"""
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Anthropic large language models.
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Args:
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model: The model to use. Defaults to "claude-2".
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max_tokens_to_sample: The maximum number of tokens to sample.
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temperature: The temperature to use for sampling.
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top_k: The top_k to use for sampling.
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top_p: The top_p to use for sampling.
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streaming: Whether to stream the response or not.
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default_request_timeout: The default request timeout to use.
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Attributes:
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model: The model to use.
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max_tokens_to_sample: The maximum number of tokens to sample.
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temperature: The temperature to use for sampling.
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top_k: The top_k to use for sampling.
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top_p: The top_p to use for sampling.
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streaming: Whether to stream the response or not.
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default_request_timeout: The default request timeout to use.
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anthropic_api_url: The API URL to use.
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anthropic_api_key: The API key to use.
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Usage:
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model_wrapper = Anthropic()
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completion = model_wrapper("Hello, my name is")
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print(completion)
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"""
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def __init__(
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self,
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model="claude-2",
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max_tokens_to_sample=256,
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temperature=None,
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top_k=None,
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top_p=None,
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streaming=False,
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default_request_timeout=None,
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api_key: str = None,
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):
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self.model = model
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self.max_tokens_to_sample = max_tokens_to_sample
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self.temperature = temperature
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self.top_k = top_k
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self.top_p = top_p
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self.streaming = streaming
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self.default_request_timeout = default_request_timeout or 600
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self.anthropic_api_url = os.getenv(
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"ANTHROPIC_API_URL", "https://api.anthropic.com"
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)
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self.anthropic_api_key = os.getenv("ANTHROPIC_API_KEY")
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self.api_key = api_key
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def _default_params(self):
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"""Get the default parameters for calling Anthropic API."""
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d = {
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"max_tokens_to_sample": self.max_tokens_to_sample,
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"model": self.model,
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}
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if self.temperature is not None:
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d["temperature"] = self.temperature
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if self.top_k is not None:
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d["top_k"] = self.top_k
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if self.top_p is not None:
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d["top_p"] = self.top_p
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return d
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def run(self, task: str, stop=None):
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"""Call out to Anthropic's completion endpoint."""
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api_key = self.api_key or self.anthropic_api_key
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stop = stop or []
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params = self._default_params()
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headers = {"Authorization": f"Bearer {api_key}"}
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data = {"prompt": task, "stop_sequences": stop, **params}
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response = requests.post(
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f"{self.anthropic_api_url}/completions",
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headers=headers,
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json=data,
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timeout=self.default_request_timeout,
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)
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return response.json().get("completion")
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def __call__(self, task: str, stop=None):
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"""Call out to Anthropic's completion endpoint."""
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stop = stop or []
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params = self._default_params()
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headers = {"Authorization": f"Bearer {self.anthropic_api_key}"}
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data = {"prompt": task, "stop_sequences": stop, **params}
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response = requests.post(
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f"{self.anthropic_api_url}/completions",
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headers=headers,
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json=data,
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timeout=self.default_request_timeout,
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)
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return response.json().get("completion")
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