import os from ctransformers import AutoModelForCausalLM import gradio as gr llm = AutoModelForCausalLM.from_pretrained("TheBloke/falcon-7b-instruct-GGML", model_file="falcon-7b-instruct.ggccv1.q4_0.bin", model_type="falcon", threads=8) TITLE = """

🦅 falcon ggccv1.q4_0 demo 🦅

""" USER_NAME = "User" BOT_NAME = "Falcon" DEFAULT_INSTRUCTIONS = f"""The following is a conversation between a highly knowledgeable and intelligent AI assistant, called Falcon, and a human user, called User. In the following interactions, User and Falcon will converse in natural language, and Falcon will answer User's questions. Falcon was built to be respectful, polite and inclusive. Falcon was built by the Technology Innovation Institute in Abu Dhabi. Falcon will never decline to answer a question, and always attempts to give an answer that User would be satisfied with. It knows a lot, and always tells the truth. The conversation begins. """ RETRY_COMMAND = "/retry" STOP_STR = f"\n{USER_NAME}:" STOP_SUSPECT_LIST = [":", "\n", "User"] def chat_accordion(): with gr.Accordion("Parameters", open=False): temperature = gr.Slider( minimum=0.1, maximum=2.0, value=0.8, step=0.1, interactive=True, label="Temperature", ) top_p = gr.Slider( minimum=0.1, maximum=0.99, value=0.9, step=0.01, interactive=True, label="p (nucleus sampling)", ) return temperature, top_p def format_chat_prompt(message: str, chat_history, instructions: str) -> str: instructions = instructions.strip(" ").strip("\n") prompt = instructions for turn in chat_history: user_message, bot_message = turn prompt = f"{prompt}\n{USER_NAME}: {user_message}\n{BOT_NAME}: {bot_message}" prompt = f"{prompt}\n{USER_NAME}: {message}\n{BOT_NAME}:" return prompt def chat(): with gr.Column(elem_id="chat_container"): with gr.Row(): chatbot = gr.Chatbot(elem_id="chatbot") with gr.Row(): inputs = gr.Textbox( placeholder=f"Hello {BOT_NAME} !!", label="Type an input and press Enter", max_lines=3, ) with gr.Row(elem_id="button_container"): with gr.Column(): retry_button = gr.Button("♻️ Retry last turn") with gr.Column(): delete_turn_button = gr.Button("🧽 Delete last turn") with gr.Column(): clear_chat_button = gr.Button("✨ Delete all history") gr.Examples( [ ["Hey Falcon! Any recommendations for my holidays in Abu Dhabi?"], ["What's the Everett interpretation of quantum mechanics?"], ["Give me a list of the top 10 dive sites you would recommend around the world."], ["Can you tell me more about deep-water soloing?"], ["Can you write a short tweet about the Apache 2.0 release of our latest AI model, Falcon LLM?"], ], inputs=inputs, label="Click on any example and press Enter in the input textbox!", ) with gr.Row(elem_id="param_container"): with gr.Column(): temperature, top_p = chat_accordion() with gr.Column(): with gr.Accordion("Instructions", open=False): instructions = gr.Textbox( placeholder="LLM instructions", value=DEFAULT_INSTRUCTIONS, lines=10, interactive=True, label="Instructions", max_lines=16, show_label=False, ) def run_chat(message: str, chat_history, instructions: str, temperature: float, top_p: float): if not message or (message == RETRY_COMMAND and len(chat_history) == 0): yield chat_history return if message == RETRY_COMMAND and chat_history: prev_turn = chat_history.pop(-1) user_message, _ = prev_turn message = user_message prompt = format_chat_prompt(message, chat_history, instructions) chat_history = chat_history + [[message, ""]] stream = llm( prompt, max_new_tokens=1024, stop=[STOP_STR, "<|endoftext|>", USER_NAME], temperature=temperature, top_p=top_p, stream=True ) acc_text = "" for idx, response in enumerate(stream): text_token = response if text_token in STOP_SUSPECT_LIST: acc_text += text_token continue if idx == 0 and text_token.startswith(" "): text_token = text_token[1:] acc_text += text_token last_turn = list(chat_history.pop(-1)) last_turn[-1] += acc_text chat_history = chat_history + [last_turn] yield chat_history acc_text = "" def delete_last_turn(chat_history): if chat_history: chat_history.pop(-1) return {chatbot: gr.update(value=chat_history)} def run_retry(message: str, chat_history, instructions: str, temperature: float, top_p: float): yield from run_chat(RETRY_COMMAND, chat_history, instructions, temperature, top_p) def clear_chat(): return [] inputs.submit( run_chat, [inputs, chatbot, instructions, temperature, top_p], outputs=[chatbot], show_progress=False, ) inputs.submit(lambda: "", inputs=None, outputs=inputs) delete_turn_button.click(delete_last_turn, inputs=[chatbot], outputs=[chatbot]) retry_button.click( run_retry, [inputs, chatbot, instructions, temperature, top_p], outputs=[chatbot], show_progress=False, ) clear_chat_button.click(clear_chat, [], chatbot) def get_demo(): with gr.Blocks( # css=None # css="""#chat_container {width: 700px; margin-left: auto; margin-right: auto;} # #button_container {width: 700px; margin-left: auto; margin-right: auto;} # #param_container {width: 700px; margin-left: auto; margin-right: auto;}""" css="""#chatbot { font-size: 14px; min-height: 300px; }""" ) as demo: gr.HTML(TITLE) with gr.Row(): with gr.Column(): gr.Markdown( """**Chat with [Falcon-7B-Instruct](https://huggingface.co/tiiuae/falcon-7b-instruct), brainstorm ideas, discuss your holiday plans, and more!** 🧪 This uses a quantized [ggml](https://github.com/ggerganov/ggml) optimized for CPU. Special thanks to [ggllm.cpp](https://github.com/cmp-nct/ggllm.cpp), [ctransformers](https://github.com/marella/ctransformers), and [TheBloke](https://huggingface.co/TheBloke). """ ) chat() return demo if __name__ == "__main__": demo = get_demo() demo.queue(max_size=128, concurrency_count=8) demo.launch(server_name="0.0.0.0", server_port=7860)