Create app.py

app.py

@@ -0,0 +1,83 @@
+import gradio as gr
+from huggingface_hub import InferenceClient
+import random
+
+# Define the model to be used
+model = "NousResearch/Nous-Hermes-2-Mixtral-8x7B-DPO"
+client = InferenceClient(model)
+
+def format_prompt_mixtral(message, history):
+    prompt = "<s>"
+    if history:
+        for user_prompt, bot_response in history:
+            prompt += f"[INST] {user_prompt} [/INST]"
+            prompt += f" {bot_response}</s> "
+    prompt += f"[INST] {message} [/INST]"
+    return prompt
+
+def chat_inf(system_prompt, prompt, history, seed, temp, tokens, top_p, rep_p):
+    if system_prompt:
+        system_prompt = f'{system_prompt}, '
+
+    generate_kwargs = dict(
+        temperature=temp,
+        max_new_tokens=tokens,
+        top_p=top_p,
+        repetition_penalty=rep_p,
+        do_sample=True,
+        seed=seed,
+    )
+
+    formatted_prompt = format_prompt_mixtral(f"{system_prompt}{prompt}", history)
+    stream = client.text_generation(formatted_prompt, **generate_kwargs, stream=True, details=True, return_full_text=False)
+    output = ""
+    for response in stream:
+        output += response.token.text
+        yield [(prompt, output)]
+    history.append((prompt, output))
+    yield history
+
+def clear_fn():
+    return None, None, None
+
+rand_val = random.randint(1, 1111111111111111)
+
+def check_rand(inp, val):
+    if inp:
+        return gr.Slider(label="Seed", minimum=1, maximum=1111111111111111, value=random.randint(1, 1111111111111111))
+    else:
+        return gr.Slider(label="Seed", minimum=1, maximum=1111111111111111, value=int(val))
+
+with gr.Blocks() as app:
+    gr.HTML("""<center><h1 style='font-size:xx-large;'>Chatbot</h1><br><h3>running on Huggingface Inference Client</h3><br><h7>EXPERIMENTAL""")
+    with gr.Row():
+        chat = gr.Chatbot(height=500)
+    with gr.Group():
+        with gr.Row():
+            with gr.Column(scale=3):
+                inp = gr.Textbox(label="Prompt")
+                sys_inp = gr.Textbox(label="System Prompt (optional)")
+                with gr.Row():
+                    with gr.Column(scale=2):
+                        btn = gr.Button("Chat")
+                    with gr.Column(scale=1):
+                        with gr.Group():
+                            stop_btn = gr.Button("Stop")
+                            clear_btn = gr.Button("Clear")
+            with gr.Column(scale=1):
+                with gr.Group():
+                    rand = gr.Checkbox(label="Random Seed", value=True)
+                    seed = gr.Slider(label="Seed", minimum=1, maximum=1111111111111111, step=1, value=rand_val)
+                    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")
+                    temp = gr.Slider(label="Temperature", step=0.01, minimum=0.01, maximum=1.0, value=0.9)
+                    top_p = gr.Slider(label="Top-P", step=0.01, minimum=0.01, maximum=1.0, value=0.9)
+                    rep_p = gr.Slider(label="Repetition Penalty", step=0.1, minimum=0.1, maximum=2.0, value=1.0)
+
+    hid1 = gr.Number(value=1, visible=False)
+
+    go = btn.click(check_rand, [rand, seed], seed).then(chat_inf, [sys_inp, inp, chat, seed, temp, tokens, top_p, rep_p], chat)
+
+    stop_btn.click(None, None, None, cancels=[go])
+    clear_btn.click(clear_fn, None, [inp, sys_inp, chat])
+
+app.queue(default_concurrency_limit=10).launch()