ChatFriendli
Friendli 透過可擴展、高效的部署選項，增強 AI 應用程式效能並最佳化成本節省，專為高需求 AI 工作負載量身打造。
本教學課程引導您整合 ChatFriendli 以用於使用 LangChain 的聊天應用程式。ChatFriendli 提供彈性的方法來產生對話式 AI 回應，支援同步和非同步呼叫。
設定
確保已安裝 langchain_community 和 friendli-client。
pip install -U langchain-community friendli-client.
登入 Friendli Suite 以建立個人存取權杖，並將其設定為 FRIENDLI_TOKEN 環境變數。
import getpass
import os
if "FRIENDLI_TOKEN" not in os.environ:
os.environ["FRIENDLI_TOKEN"] = getpass.getpass("Friendi Personal Access Token: ")
您可以初始化 Friendli 聊天模型，並選擇您想要使用的模型。預設模型為 mixtral-8x7b-instruct-v0-1。您可以在 docs.friendli.ai 查看可用的模型。
from langchain_community.chat_models.friendli import ChatFriendli
chat = ChatFriendli(model="meta-llama-3.1-8b-instruct", max_tokens=100, temperature=0)
API 參考：ChatFriendli
使用方式
FrienliChat 支援 ChatModel 的所有方法，包括非同步 API。
您也可以使用 invoke、batch、generate 和 stream 的功能。
from langchain_core.messages.human import HumanMessage
from langchain_core.messages.system import SystemMessage
system_message = SystemMessage(content="Answer questions as short as you can.")
human_message = HumanMessage(content="Tell me a joke.")
messages = [system_message, human_message]
chat.invoke(messages)
API 參考：HumanMessage | SystemMessage
AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-d47c1056-54e8-4ea9-ad63-07cf74b834b7-0')
chat.batch([messages, messages])
[AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-36775b84-2a7a-48f0-8c68-df23ffffe4b2-0'),
AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-b204be41-bc06-4d3a-9f74-e66ab1e60e4f-0')]
chat.generate([messages, messages])
LLMResult(generations=[[ChatGeneration(text="Why don't eggs tell jokes? They'd crack each other up.", message=AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-2e4cb949-8c51-40d5-92a0-cd0ac577db83-0'))], [ChatGeneration(text="Why don't eggs tell jokes? They'd crack each other up.", message=AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-afcdd1be-463c-4e50-9731-7a9f5958e396-0'))]], llm_output={}, run=[RunInfo(run_id=UUID('2e4cb949-8c51-40d5-92a0-cd0ac577db83')), RunInfo(run_id=UUID('afcdd1be-463c-4e50-9731-7a9f5958e396'))], type='LLMResult')
for chunk in chat.stream(messages):
print(chunk.content, end="", flush=True)
Why don't eggs tell jokes? They'd crack each other up.
您也可以使用非同步 API 的所有功能：ainvoke、abatch、agenerate 和 astream。
await chat.ainvoke(messages)
AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-ba8062fb-68af-47b8-bd7b-d1e01b914744-0')
await chat.abatch([messages, messages])
[AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-5d2c77ab-2637-45da-8bbe-1b1f18a22369-0'),
AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-f1338470-8b52-4d6e-9428-a694a08ae484-0')]
await chat.agenerate([messages, messages])
LLMResult(generations=[[ChatGeneration(text="Why don't eggs tell jokes? They'd crack each other up.", message=AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-d4e44569-39cc-40cc-93fc-de53e599fd51-0'))], [ChatGeneration(text="Why don't eggs tell jokes? They'd crack each other up.", message=AIMessage(content="Why don't eggs tell jokes? They'd crack each other up.", additional_kwargs={}, response_metadata={}, id='run-54647cc2-bee3-4154-ad00-2e547993e6d7-0'))]], llm_output={}, run=[RunInfo(run_id=UUID('d4e44569-39cc-40cc-93fc-de53e599fd51')), RunInfo(run_id=UUID('54647cc2-bee3-4154-ad00-2e547993e6d7'))], type='LLMResult')
async for chunk in chat.astream(messages):
print(chunk.content, end="", flush=True)
Why don't eggs tell jokes? They'd crack each other up.