from __future__ import annotations import random import json from ..typing import AsyncResult, Messages from ..requests import StreamSession, raise_for_status from .base_provider import AsyncGeneratorProvider, ProviderModelMixin API_URL = "https://www.perplexity.ai/socket.io/" WS_URL = "wss://www.perplexity.ai/socket.io/" class PerplexityLabs(AsyncGeneratorProvider, ProviderModelMixin): url = "https://labs.perplexity.ai" working = True default_model = "llama-3.1-70b-instruct" models = [ "llama-3.1-sonar-large-128k-online", "llama-3.1-sonar-small-128k-online", "llama-3.1-sonar-large-128k-chat", "llama-3.1-sonar-small-128k-chat", "llama-3.1-8b-instruct", "llama-3.1-70b-instruct", ] model_aliases = { "sonar-online": "llama-3.1-sonar-large-128k-online", "sonar-online": "sonar-small-128k-online", "sonar-chat": "llama-3.1-sonar-large-128k-chat", "sonar-chat": "llama-3.1-sonar-small-128k-chat", "llama-3.1-8b": "llama-3.1-8b-instruct", "llama-3.1-70b": "llama-3.1-70b-instruct", } @classmethod async def create_async_generator( cls, model: str, messages: Messages, proxy: str = None, **kwargs ) -> AsyncResult: headers = { "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0", "Accept": "*/*", "Accept-Language": "de,en-US;q=0.7,en;q=0.3", "Accept-Encoding": "gzip, deflate, br", "Origin": cls.url, "Connection": "keep-alive", "Referer": f"{cls.url}/", "Sec-Fetch-Dest": "empty", "Sec-Fetch-Mode": "cors", "Sec-Fetch-Site": "same-site", "TE": "trailers", } async with StreamSession(headers=headers, proxies={"all": proxy}) as session: t = format(random.getrandbits(32), "08x") async with session.get( f"{API_URL}?EIO=4&transport=polling&t={t}" ) as response: await raise_for_status(response) text = await response.text() assert text.startswith("0") sid = json.loads(text[1:])["sid"] post_data = '40{"jwt":"anonymous-ask-user"}' async with session.post( f"{API_URL}?EIO=4&transport=polling&t={t}&sid={sid}", data=post_data ) as response: await raise_for_status(response) assert await response.text() == "OK" async with session.ws_connect(f"{WS_URL}?EIO=4&transport=websocket&sid={sid}", autoping=False) as ws: await ws.send_str("2probe") assert(await ws.receive_str() == "3probe") await ws.send_str("5") assert(await ws.receive_str()) assert(await ws.receive_str() == "6") message_data = { "version": "2.5", "source": "default", "model": cls.get_model(model), "messages": messages } await ws.send_str("42" + json.dumps(["perplexity_labs", message_data])) last_message = 0 while True: message = await ws.receive_str() if message == "2": if last_message == 0: raise RuntimeError("Unknown error") await ws.send_str("3") continue try: data = json.loads(message[2:])[1] yield data["output"][last_message:] last_message = len(data["output"]) if data["final"]: break except: raise RuntimeError(f"Message: {message}")