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import gradio as gr |
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from huggingface_hub import InferenceClient |
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import random |
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model = "NousResearch/Nous-Hermes-2-Mixtral-8x7B-DPO" |
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client = InferenceClient(model) |
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def format_prompt_mixtral(message, history): |
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prompt = "<s>" |
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if history: |
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for user_prompt, bot_response in history: |
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prompt += f"[INST] {user_prompt} [/INST]" |
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prompt += f" {bot_response}</s> " |
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prompt += f"[INST] {message} [/INST]" |
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return prompt |
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def chat_inf(system_prompt, prompt, history, seed, temp, tokens, top_p, rep_p): |
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if system_prompt: |
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system_prompt = f'{system_prompt}, ' |
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generate_kwargs = dict( |
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temperature=temp, |
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max_new_tokens=tokens, |
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top_p=top_p, |
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repetition_penalty=rep_p, |
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do_sample=True, |
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seed=seed, |
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) |
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formatted_prompt = format_prompt_mixtral(f"{system_prompt}{prompt}", history) |
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stream = client.text_generation(formatted_prompt, **generate_kwargs, stream=True, details=True, return_full_text=False) |
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output = "" |
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for response in stream: |
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output += response.token.text |
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yield [(prompt, output)] |
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history.append((prompt, output)) |
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yield history |
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def clear_fn(): |
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return None, None, None |
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rand_val = random.randint(1, 1111111111111111) |
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def check_rand(inp, val): |
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if inp: |
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return gr.Slider(label="Seed", minimum=1, maximum=1111111111111111, value=random.randint(1, 1111111111111111)) |
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else: |
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return gr.Slider(label="Seed", minimum=1, maximum=1111111111111111, value=int(val)) |
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with gr.Blocks() as app: |
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gr.HTML("""<center><h1 style='font-size:xx-large;'>Chatbot</h1><br><h3>running on Huggingface Inference Client</h3><br><h7>EXPERIMENTAL""") |
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with gr.Row(): |
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chat = gr.Chatbot(height=500) |
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with gr.Group(): |
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with gr.Row(): |
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with gr.Column(scale=3): |
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inp = gr.Textbox(label="Prompt") |
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sys_inp = gr.Textbox(label="System Prompt (optional)") |
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with gr.Row(): |
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with gr.Column(scale=2): |
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btn = gr.Button("Chat") |
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with gr.Column(scale=1): |
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with gr.Group(): |
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stop_btn = gr.Button("Stop") |
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clear_btn = gr.Button("Clear") |
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with gr.Column(scale=1): |
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with gr.Group(): |
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rand = gr.Checkbox(label="Random Seed", value=True) |
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seed = gr.Slider(label="Seed", minimum=1, maximum=1111111111111111, step=1, value=rand_val) |
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tokens = gr.Slider(label="Max new tokens", value=3840, minimum=0, maximum=8000, step=64, interactive=True, visible=True, info="The maximum number of tokens") |
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temp = gr.Slider(label="Temperature", step=0.01, minimum=0.01, maximum=1.0, value=0.9) |
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top_p = gr.Slider(label="Top-P", step=0.01, minimum=0.01, maximum=1.0, value=0.9) |
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rep_p = gr.Slider(label="Repetition Penalty", step=0.1, minimum=0.1, maximum=2.0, value=1.0) |
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hid1 = gr.Number(value=1, visible=False) |
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go = btn.click(check_rand, [rand, seed], seed).then(chat_inf, [sys_inp, inp, chat, seed, temp, tokens, top_p, rep_p], chat) |
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stop_btn.click(None, None, None, cancels=[go]) |
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clear_btn.click(clear_fn, None, [inp, sys_inp, chat]) |
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app.queue(default_concurrency_limit=10).launch() |
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