def build_side_by_side_ui_anony()

in fastchat/serve/gradio_block_arena_anony.py [0:0]


def build_side_by_side_ui_anony(models):
    notice_markdown = """
# ⚔️  Chatbot Arena ⚔️ : Benchmarking LLMs in the Wild
| [Blog](https://lmsys.org/blog/2023-05-03-arena/) | [GitHub](https://github.com/lm-sys/FastChat) | [Paper](https://arxiv.org/abs/2306.05685) | [Dataset](https://github.com/lm-sys/FastChat/blob/main/docs/dataset_release.md) | [Twitter](https://twitter.com/lmsysorg) | [Discord](https://discord.gg/HSWAKCrnFx) |

## 📜 Rules
- Ask any question to two anonymous models (e.g., ChatGPT, Claude, Llama) and vote for the better one!
- You can continue chatting until you identify a winner.
- Vote won't be counted if model identity is revealed during conversation.

## 🏆 Arena Elo [Leaderboard](https://huggingface.co/spaces/lmsys/chatbot-arena-leaderboard)
We use **100K** human votes to compile an Elo-based LLM leaderboard.
Find out who is the 🥇LLM Champion!

## 👇 Chat now!

"""

    states = [gr.State() for _ in range(num_sides)]
    model_selectors = [None] * num_sides
    chatbots = [None] * num_sides

    gr.Markdown(notice_markdown, elem_id="notice_markdown")

    with gr.Box(elem_id="share-region-anony"):
        with gr.Row():
            for i in range(num_sides):
                label = "Model A" if i == 0 else "Model B"
                with gr.Column():
                    chatbots[i] = gr.Chatbot(
                        label=label, elem_id=f"chatbot", height=550
                    )

        with gr.Row():
            for i in range(num_sides):
                with gr.Column():
                    model_selectors[i] = gr.Markdown(anony_names[i])
        with gr.Row():
            slow_warning = gr.Markdown("", elem_id="notice_markdown")

        with gr.Row():
            leftvote_btn = gr.Button(
                value="👈  A is better", visible=False, interactive=False
            )
            rightvote_btn = gr.Button(
                value="👉  B is better", visible=False, interactive=False
            )
            tie_btn = gr.Button(value="🤝  Tie", visible=False, interactive=False)
            bothbad_btn = gr.Button(
                value="👎  Both are bad", visible=False, interactive=False
            )

    with gr.Row():
        with gr.Column(scale=20):
            textbox = gr.Textbox(
                show_label=False,
                placeholder="👉 Enter your prompt and press ENTER",
                container=False,
                elem_id="input_box",
            )
        with gr.Column(scale=1, min_width=50):
            send_btn = gr.Button(value="Send", variant="primary")

    with gr.Row() as button_row:
        clear_btn = gr.Button(value="🎲 New Round", interactive=False)
        regenerate_btn = gr.Button(value="🔄  Regenerate", interactive=False)
        share_btn = gr.Button(value="📷  Share")

    with gr.Accordion("Parameters", open=False) as parameter_row:
        temperature = gr.Slider(
            minimum=0.0,
            maximum=1.0,
            value=0.7,
            step=0.1,
            interactive=True,
            label="Temperature",
        )
        top_p = gr.Slider(
            minimum=0.0,
            maximum=1.0,
            value=1.0,
            step=0.1,
            interactive=True,
            label="Top P",
        )
        max_output_tokens = gr.Slider(
            minimum=16,
            maximum=1024,
            value=512,
            step=64,
            interactive=True,
            label="Max output tokens",
        )

    gr.Markdown(acknowledgment_md)

    # Register listeners
    btn_list = [
        leftvote_btn,
        rightvote_btn,
        tie_btn,
        bothbad_btn,
        regenerate_btn,
        clear_btn,
    ]
    leftvote_btn.click(
        leftvote_last_response,
        states + model_selectors,
        model_selectors + [textbox, leftvote_btn, rightvote_btn, tie_btn, bothbad_btn],
    )
    rightvote_btn.click(
        rightvote_last_response,
        states + model_selectors,
        model_selectors + [textbox, leftvote_btn, rightvote_btn, tie_btn, bothbad_btn],
    )
    tie_btn.click(
        tievote_last_response,
        states + model_selectors,
        model_selectors + [textbox, leftvote_btn, rightvote_btn, tie_btn, bothbad_btn],
    )
    bothbad_btn.click(
        bothbad_vote_last_response,
        states + model_selectors,
        model_selectors + [textbox, leftvote_btn, rightvote_btn, tie_btn, bothbad_btn],
    )
    regenerate_btn.click(
        regenerate, states, states + chatbots + [textbox] + btn_list
    ).then(
        bot_response_multi,
        states + [temperature, top_p, max_output_tokens],
        states + chatbots + btn_list,
    ).then(
        flash_buttons, [], btn_list
    )
    clear_btn.click(
        clear_history,
        None,
        states + chatbots + model_selectors + [textbox] + btn_list + [slow_warning],
    )

    share_js = """
function (a, b, c, d) {
    const captureElement = document.querySelector('#share-region-anony');
    html2canvas(captureElement)
        .then(canvas => {
            canvas.style.display = 'none'
            document.body.appendChild(canvas)
            return canvas
        })
        .then(canvas => {
            const image = canvas.toDataURL('image/png')
            const a = document.createElement('a')
            a.setAttribute('download', 'chatbot-arena.png')
            a.setAttribute('href', image)
            a.click()
            canvas.remove()
        });
    return [a, b, c, d];
}
"""
    share_btn.click(share_click, states + model_selectors, [], _js=share_js)

    textbox.submit(
        add_text,
        states + model_selectors + [textbox],
        states + chatbots + [textbox] + btn_list + [slow_warning],
    ).then(
        bot_response_multi,
        states + [temperature, top_p, max_output_tokens],
        states + chatbots + btn_list,
    ).then(
        flash_buttons,
        [],
        btn_list,
    )

    send_btn.click(
        add_text,
        states + model_selectors + [textbox],
        states + chatbots + [textbox] + btn_list,
    ).then(
        bot_response_multi,
        states + [temperature, top_p, max_output_tokens],
        states + chatbots + btn_list,
    ).then(
        flash_buttons, [], btn_list
    )

    return states + model_selectors