diff --git a/tools/demo/mammoth_demo.py b/tools/demo/mammoth_demo.py
index 4a9eda3f..4c1fbdec 100644
--- a/tools/demo/mammoth_demo.py
+++ b/tools/demo/mammoth_demo.py
@@ -1,10 +1,87 @@
 from dataclasses import dataclass
 import requests
-import streamlit as st
+import streamlit as st  # type: ignore
+
+st.set_page_config(layout="wide")
 
 MAMMOTH = '🦣'
 FAT_UNDER = '▁'
 
+ARCHITECTURE_HTML = """
+<h3>Decoder</h3>
+<div class="arch">
+    <div class="layer langspec">
+        <div class="compo compo-en">en</div>
+        <div class="compo compo-fr">fr</div>
+        <div class="compo compo-ru">ru</div>
+    </div>
+    <div class="layer taskspec">
+        <div class="compo compo-defmod">defmod</div>
+        <div class="compo compo-pargen">pargen</div>
+        <div class="compo compo-texsim">texsim</div>
+        <div class="compo compo-translate">translate</div>
+    </div>
+    <div class="layer langspec">
+        <div class="compo compo-en">en</div>
+        <div class="compo compo-fr">fr</div>
+        <div class="compo compo-ru">ru</div>
+    </div>
+</div>
+<h3>Encoder</h3>
+<div class="arch">
+    <div class="layer full">
+        <div class="compo">fully shared</div>
+    </div>
+</div>
+
+<style>
+    .arch {
+        display: grid;
+        row-gap: 5px;
+    }
+    .layer {
+        display: grid;
+        grid-template-columns: repeat(3, 1fr);
+        column-gap: 5px;
+    }
+    .taskspec {
+        grid-template-columns: repeat(4, 1fr);
+    }
+    .langspec {
+        grid-template-columns: repeat(3, 1fr);
+    }
+    .full {
+        grid-template-columns: 1fr;
+    }
+    .compo {
+        display: grid;
+        border: 2px solid gray;
+        text-align: center;
+    }
+    .compo-__LANG__ {
+        border: 5px solid green;
+        font-weight: bold;
+    }
+    .compo-__TASK__ {
+        border: 5px solid red;
+        font-weight: bold;
+    }
+    .full div {
+        border: 5px solid blue;
+    }
+</style>
+"""
+
+
+def render(template, model_task):
+    task, lang = model_task.split('_')
+    if task == 'translate':
+        _, lang = lang.split('-')
+    template = template.replace('__TASK__', task)
+    template = template.replace('__LANG__', lang)
+    return template
+
+
 @dataclass
 class ModelSpecs:
     id: int
@@ -13,32 +90,38 @@ class ModelSpecs:
 
     @staticmethod
     def format_model(model):
-        suffix = ' <<' if model.loaded else ''
-        return f'{model.task}{suffix}'
+        return model.task
 
 
 class Translator:
     def __call__(self):
         st.title(f'{MAMMOTH} MAMMOTH translation demo')
-        with st.form('Translation demo'):
-            model = st.selectbox(
-                'Model',
-                st.session_state.models,
-                format_func=ModelSpecs.format_model,
-            )
-            source = st.text_area(
-                'Source text',
-                height=None,
-            )
-            submitted = st.form_submit_button('▶️  Translate')
-            if submitted:
-                target_text = self.submit(source, model.id)
-            else:
-                target_text = ''
-            st.text_area(
-                'Target text',
-                value=target_text,
-                height=None,
+        col1, col2 = st.columns([0.6, 0.4], gap="large")
+        with col1:
+            with st.form('Translation demo'):
+                model = st.selectbox(
+                    'Model',
+                    st.session_state.models,
+                    format_func=ModelSpecs.format_model,
+                )
+                source = st.text_area(
+                    'Source text',
+                    height=None,
+                )
+                submitted = st.form_submit_button('▶️  Translate')
+                if submitted:
+                    target_text = self.submit(source, model.id)
+                else:
+                    target_text = ''
+                st.text_area(
+                    'Target text',
+                    value=target_text,
+                    height=None,
+                )
+        with col2:
+            st.markdown(
+                render(ARCHITECTURE_HTML, model.task),
+                unsafe_allow_html=True,
             )
 
     def submit(self, query, model):