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from fastapi import FastAPI, HTTPException, Request
from pydantic import BaseModel
from llama_cpp import Llama
from concurrent.futures import ThreadPoolExecutor, as_completed
import uvicorn
import re
from dotenv import load_dotenv
import spaces
load_dotenv()
app = FastAPI()
global_data = {
'models': {},
'tokens': {
'eos': 'eos_token',
'pad': 'pad_token',
'padding': 'padding_token',
'unk': 'unk_token',
'bos': 'bos_token',
'sep': 'sep_token',
'cls': 'cls_token',
'mask': 'mask_token'
}
}
model_configs = [
{"repo_id": "Ffftdtd5dtft/gpt2-xl-Q2_K-GGUF", "filename": "gpt2-xl-q2_k.gguf", "name": "GPT-2 XL"},
{"repo_id": "Ffftdtd5dtft/Meta-Llama-3.1-8B-Instruct-Q2_K-GGUF", "filename": "meta-llama-3.1-8b-instruct-q2_k.gguf", "name": "Meta Llama 3.1-8B Instruct"},
{"repo_id": "Ffftdtd5dtft/gemma-2-9b-it-Q2_K-GGUF", "filename": "gemma-2-9b-it-q2_k.gguf", "name": "Gemma 2-9B IT"},
{"repo_id": "Ffftdtd5dtft/gemma-2-27b-Q2_K-GGUF", "filename": "gemma-2-27b-q2_k.gguf", "name": "Gemma 2-27B"},
{"repo_id": "Ffftdtd5dtft/Phi-3-mini-128k-instruct-Q2_K-GGUF", "filename": "phi-3-mini-128k-instruct-q2_k.gguf", "name": "Phi-3 Mini 128K Instruct"},
{"repo_id": "Ffftdtd5dtft/Meta-Llama-3.1-8B-Q2_K-GGUF", "filename": "meta-llama-3.1-8b-q2_k.gguf", "name": "Meta Llama 3.1-8B"},
{"repo_id": "Ffftdtd5dtft/Qwen2-7B-Instruct-Q2_K-GGUF", "filename": "qwen2-7b-instruct-q2_k.gguf", "name": "Qwen2 7B Instruct"},
{"repo_id": "Ffftdtd5dtft/starcoder2-3b-Q2_K-GGUF", "filename": "starcoder2-3b-q2_k.gguf", "name": "Starcoder2 3B"},
{"repo_id": "Ffftdtd5dtft/Qwen2-1.5B-Instruct-Q2_K-GGUF", "filename": "qwen2-1.5b-instruct-q2_k.gguf", "name": "Qwen2 1.5B Instruct"},
{"repo_id": "Ffftdtd5dtft/Meta-Llama-3.1-70B-Q2_K-GGUF", "filename": "meta-llama-3.1-70b-q2_k.gguf", "name": "Meta Llama 3.1-70B"},
{"repo_id": "Ffftdtd5dtft/Mistral-Nemo-Instruct-2407-Q2_K-GGUF", "filename": "mistral-nemo-instruct-2407-q2_k.gguf", "name": "Mistral Nemo Instruct 2407"},
{"repo_id": "Ffftdtd5dtft/Hermes-3-Llama-3.1-8B-IQ1_S-GGUF", "filename": "hermes-3-llama-3.1-8b-iq1_s-imat.gguf", "name": "Hermes 3 Llama 3.1-8B"},
{"repo_id": "Ffftdtd5dtft/Phi-3.5-mini-instruct-Q2_K-GGUF", "filename": "phi-3.5-mini-instruct-q2_k.gguf", "name": "Phi 3.5 Mini Instruct"},
{"repo_id": "Ffftdtd5dtft/Meta-Llama-3.1-70B-Instruct-Q2_K-GGUF", "filename": "meta-llama-3.1-70b-instruct-q2_k.gguf", "name": "Meta Llama 3.1-70B Instruct"},
{"repo_id": "Ffftdtd5dtft/codegemma-2b-IQ1_S-GGUF", "filename": "codegemma-2b-iq1_s-imat.gguf", "name": "Codegemma 2B"},
{"repo_id": "Ffftdtd5dtft/Phi-3-mini-128k-instruct-IQ2_XXS-GGUF", "filename": "phi-3-mini-128k-instruct-iq2_xxs-imat.gguf", "name": "Phi 3 Mini 128K Instruct XXS"},
{"repo_id": "Ffftdtd5dtft/TinyLlama-1.1B-Chat-v1.0-IQ1_S-GGUF", "filename": "tinyllama-1.1b-chat-v1.0-iq1_s-imat.gguf", "name": "TinyLlama 1.1B Chat"},
{"repo_id": "Ffftdtd5dtft/Mistral-NeMo-Minitron-8B-Base-IQ1_S-GGUF", "filename": "mistral-nemo-minitron-8b-base-iq1_s-imat.gguf", "name": "Mistral NeMo Minitron 8B Base"},
{"repo_id": "Ffftdtd5dtft/Mistral-Nemo-Instruct-2407-Q2_K-GGUF", "filename": "mistral-nemo-instruct-2407-q2_k.gguf", "name": "Mistral Nemo Instruct 2407"}
]
class ModelManager:
def __init__(self):
self.loaded = False
def load_model(self, model_config):
try:
return {"model": Llama.from_pretrained(repo_id=model_config['repo_id'], filename=model_config['filename']), "name": model_config['name']}
except Exception:
pass
def load_all_models(self):
if self.loaded:
return global_data['models']
try:
with ThreadPoolExecutor() as executor:
futures = [executor.submit(self.load_model, config) for config in model_configs]
models = []
for future in as_completed(futures):
model = future.result()
if model:
models.append(model)
global_data['models'] = models
self.loaded = True
return models
except Exception:
pass
model_manager = ModelManager()
model_manager.load_all_models()
class ChatRequest(BaseModel):
message: str
top_k: int = 50
top_p: float = 0.95
temperature: float = 0.7
def normalize_input(input_text):
return input_text.strip()
def remove_duplicates(text):
text = re.sub(r'(Hello there, how are you\? \[/INST\]){2,}', 'Hello there, how are you? [/INST]', text)
text = re.sub(r'(How are you\? \[/INST\]){2,}', 'How are you? [/INST]', text)
text = text.replace('[/INST]', '')
lines = text.split('\n')
unique_lines = []
seen_lines = set()
for line in lines:
if line not in seen_lines:
seen_lines.add(line)
unique_lines.append(line)
return '\n'.join(unique_lines)
def remove_repetitive_responses(responses):
seen = set()
unique_responses = []
for response in responses:
normalized_response = remove_duplicates(response['response'])
if normalized_response not in seen:
seen.add(normalized_response)
unique_responses.append(response)
return unique_responses
def generate_chat_response(request, model_data):
model = model_data['model']
try:
user_input = normalize_input(request.message)
response = model(user_input, top_k=request.top_k, top_p=request.top_p, temperature=request.temperature)
return {"model": model_data['name'], "response": response}
except Exception:
pass
@spaces.GPU(duration=0)
async def generate(request: ChatRequest):
try:
responses = []
with ThreadPoolExecutor() as executor:
futures = [executor.submit(generate_chat_response, request, model_data) for model_data in global_data['models']]
for future in as_completed(futures):
try:
response = future.result()
if response:
responses.append(response)
except Exception:
pass
if not responses:
raise HTTPException(status_code=500, detail="Error: No responses generated.")
responses = remove_repetitive_responses(responses)
best_response = responses[0] if responses else {}
return {
"best_response": best_response,
"all_responses": responses
}
except Exception:
pass
@app.api_route("/{method_name:path}", methods=["GET", "POST", "PUT", "DELETE", "PATCH"])
async def handle_request(method_name: str, request: Request):
try:
body = await request.json()
return {"message": "Request handled successfully", "body": body}
except Exception:
raise HTTPException(status_code=500, detail="Error: Internal Server Error")
if __name__ == "__main__":
uvicorn.run(app, host="0.0.0.0", port=7860)
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