diff --git a/.vscode/settings.json b/.vscode/settings.json
index b5f4dfd1..8f9d001f 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -8,7 +8,8 @@
     },
     "python.analysis.typeCheckingMode": "basic",
     "isort.args": [
-        "--profile black"
+        "--profile",
+        "black"
     ],
     "black-formatter.importStrategy": "fromEnvironment",
 }
\ No newline at end of file
diff --git a/notebooks/end2end_demo.ipynb b/notebooks/end2end_demo.ipynb
new file mode 100644
index 00000000..f08aba38
--- /dev/null
+++ b/notebooks/end2end_demo.ipynb
@@ -0,0 +1,133 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Imports"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 5,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "import os\n",
+    "from typing import cast\n",
+    "import pickle\n",
+    "from collections import defaultdict\n",
+    "\n",
+    "from datasets import load_dataset, Dataset\n",
+    "\n",
+    "from delphi.constants import STATIC_ASSETS_DIR\n",
+    "from delphi.eval import utils\n",
+    "from delphi.eval import constants\n",
+    "from delphi.eval.vis_per_token_model import visualize_per_token_category\n",
+    "\n",
+    "# from delphi.eval.calc_model_group_stats import calc_model_group_stats\n",
+    "from delphi.eval.token_labelling import TOKEN_LABELS"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Data"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 6,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# load data\n",
+    "tokenized_corpus_dataset = cast(Dataset, load_dataset(constants.tokenized_corpus_dataset))[\"validation\"]\n",
+    "\n",
+    "# TODO: convert to use static paths\n",
+    "# with open(\"../src/delphi/eval/labelled_token_ids_dict.pkl\", \"rb\") as f:\n",
+    "#     token_groups = pickle.load(f)\n",
+    "# model_group_stats = calc_model_group_stats(\n",
+    "#     tokenized_corpus_dataset, logprob_datasets, token_groups, token_groups[0].keys()\n",
+    "# )\n",
+    "with open(f\"{STATIC_ASSETS_DIR}/model_group_stats.pkl\", \"rb\") as f:\n",
+    "    model_group_stats = pickle.load(f)\n",
+    "\n",
+    "logprob_datasets = utils.load_logprob_datasets(\"validation\")\n"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Visualization"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "application/vnd.jupyter.widget-view+json": {
+       "model_id": "0f8846898fbb4a1b9e872ff6511acd3d",
+       "version_major": 2,
+       "version_minor": 0
+      },
+      "text/plain": [
+       "VBox(children=(Dropdown(description='Token Category:', options=('Capitalized', 'Is Determiner', 'Is Interjunct…"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "performance_data = defaultdict(dict)\n",
+    "for model in constants.LLAMA2_MODELS:\n",
+    "    for token_group_desc in TOKEN_LABELS:\n",
+    "        if (model, token_group_desc) not in model_group_stats:\n",
+    "            continue\n",
+    "        stats = model_group_stats[(model, token_group_desc)]\n",
+    "        performance_data[model][token_group_desc] = (\n",
+    "            -stats[\"median\"],\n",
+    "            -stats[\"75th\"],\n",
+    "            -stats[\"25th\"],\n",
+    "        )\n",
+    "\n",
+    "visualize_per_token_category(\n",
+    "    performance_data,\n",
+    "    log_scale=True,\n",
+    "    bg_color=\"LightGrey\",\n",
+    "    line_color=\"Red\",\n",
+    "    marker_color=\"Orange\",\n",
+    "    bar_color=\"Green\",\n",
+    ")"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "tinyevals",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.10.13"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 2
+}
diff --git a/requirements.txt b/requirements.txt
index 5fdc84c0..e14ef757 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,4 +13,6 @@ isort==5.13.2
 spacy==3.7.2
 chardet==5.2.0
 sentencepiece==0.1.99
-protobuf==4.25.2
\ No newline at end of file
+protobuf==4.25.2
+plotly==5.18.0
+spacy-transformers==1.3.4
\ No newline at end of file
diff --git a/scripts/map_tokens.py b/scripts/map_tokens.py
old mode 100644
new mode 100755
index 2acea2da..832ac0da
--- a/scripts/map_tokens.py
+++ b/scripts/map_tokens.py
@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import argparse
+import os
 import pickle
 
 from delphi.constants import STATIC_ASSETS_DIR
diff --git a/src/delphi/eval/calc_model_group_stats.py b/src/delphi/eval/calc_model_group_stats.py
new file mode 100644
index 00000000..d9c5d4c1
--- /dev/null
+++ b/src/delphi/eval/calc_model_group_stats.py
@@ -0,0 +1,54 @@
+import numpy as np
+
+
+def calc_model_group_stats(
+    tokenized_corpus_dataset: list,
+    logprobs_by_dataset: dict[str, list[list[float]]],
+    token_labels_by_token: dict[int, dict[str, bool]],
+    token_labels: list[str],
+) -> dict[tuple[str, str], dict[str, float]]:
+    """
+    For each (model, token group) pair, calculate useful stats (for visualization)
+
+    args:
+    - tokenized_corpus_dataset: the tokenized corpus dataset, e.g. load_dataset(constants.tokenized_corpus_dataset))["validation"]
+    - logprob_datasets: a dict of lists of logprobs, e.g. {"llama2": load_dataset("transcendingvictor/llama2-validation-logprobs")["validation"]["logprobs"]}
+    - token_groups: a dict of token groups, e.g. {0: {"Is Noun": True, "Is Verb": False, ...}, 1: {...}, ...}
+    - models: a list of model names, e.g. constants.LLAMA2_MODELS
+    - token_labels: a list of token group descriptions, e.g. ["Is Noun", "Is Verb", ...]
+
+    returns: a dict of (model, token group) pairs to a dict of stats,
+        e.g. {("llama2", "Is Noun"): {"mean": -0.5, "median": -0.4, "min": -0.1, "max": -0.9, "25th": -0.3, "75th": -0.7}, ...}
+
+    Technically `models` and `token_labels` are redundant, as they are also keys in `logprob_datasets` and `token_groups`,
+    but it's better to be explicit
+
+    stats calculated: mean, median, min, max, 25th percentile, 75th percentile
+    """
+    model_group_stats = {}
+    for model in logprobs_by_dataset:
+        group_logprobs = {}
+        print(f"Processing model {model}")
+        dataset = logprobs_by_dataset[model]
+        for ix_doc_lp, document_lps in enumerate(dataset):
+            tokens = tokenized_corpus_dataset[ix_doc_lp]["tokens"]
+            for ix_token, token in enumerate(tokens):
+                if ix_token == 0:  # skip the first token, which isn't predicted
+                    continue
+                logprob = document_lps[ix_token]
+                for token_group_desc in token_labels:
+                    if token_labels_by_token[token][token_group_desc]:
+                        if token_group_desc not in group_logprobs:
+                            group_logprobs[token_group_desc] = []
+                        group_logprobs[token_group_desc].append(logprob)
+        for token_group_desc in token_labels:
+            if token_group_desc in group_logprobs:
+                model_group_stats[(model, token_group_desc)] = {
+                    "mean": np.mean(group_logprobs[token_group_desc]),
+                    "median": np.median(group_logprobs[token_group_desc]),
+                    "min": np.min(group_logprobs[token_group_desc]),
+                    "max": np.max(group_logprobs[token_group_desc]),
+                    "25th": np.percentile(group_logprobs[token_group_desc], 25),
+                    "75th": np.percentile(group_logprobs[token_group_desc], 75),
+                }
+    return model_group_stats
diff --git a/src/delphi/eval/constants.py b/src/delphi/eval/constants.py
new file mode 100644
index 00000000..30b3e36b
--- /dev/null
+++ b/src/delphi/eval/constants.py
@@ -0,0 +1,14 @@
+corpus_dataset = "delphi-suite/tinystories-v2-clean"
+tokenized_corpus_dataset = "delphi-suite/tinystories-v2-clean-tokenized-v0"
+
+LLAMA2_MODELS = [
+    "delphi-llama2-100k",
+    "delphi-llama2-200k",
+    "delphi-llama2-400k",
+    "delphi-llama2-800k",
+    "delphi-llama2-1.6m",
+    "delphi-llama2-3.2m",
+    "delphi-llama2-6.4m",
+    "delphi-llama2-12.8m",
+    "delphi-llama2-25.6m",
+]
diff --git a/src/delphi/eval/utils.py b/src/delphi/eval/utils.py
index 16b26e4c..d0611afb 100644
--- a/src/delphi/eval/utils.py
+++ b/src/delphi/eval/utils.py
@@ -6,6 +6,8 @@
 from jaxtyping import Float, Int
 from transformers import PreTrainedModel, PreTrainedTokenizerBase
 
+from delphi.eval import constants
+
 
 def get_all_logprobs(
     model: Callable, input_ids: Int[torch.Tensor, "batch seq"]
@@ -87,3 +89,14 @@ def tokenize(
         Int[torch.Tensor, "seq"],
         tokenizer.encode(tokenizer.bos_token + sample_txt, return_tensors="pt")[0],
     )
+
+
+def load_logprob_dataset(model: str) -> Dataset:
+    return load_dataset(f"transcendingvictor/{model}-validation-logprobs")  # type: ignore
+
+
+def load_logprob_datasets(split: str = "validation") -> dict[str, list[list[float]]]:
+    return {
+        model: cast(dict, load_logprob_dataset(model)[split])["logprobs"]
+        for model in constants.LLAMA2_MODELS
+    }
diff --git a/src/delphi/eval/vis_per_token_model.py b/src/delphi/eval/vis_per_token_model.py
index a8e269fe..618840b0 100644
--- a/src/delphi/eval/vis_per_token_model.py
+++ b/src/delphi/eval/vis_per_token_model.py
@@ -10,6 +10,9 @@ def visualize_per_token_category(
     categories = list(input[model_names[0]].keys())
     category = categories[0]
 
+    def get_hovertexts(mid: np.ndarray, lo: np.ndarray, hi: np.ndarray) -> list[str]:
+        return [f"Loss: {m:.3f} ({l:.3f}, {h:.3f})" for m, l, h in zip(mid, lo, hi)]
+
     def get_plot_values(category: str) -> tuple[np.ndarray, np.ndarray, np.ndarray]:
         x = np.array([input[name][category] for name in model_names]).T
         means, err_lo, err_hi = x[0], x[1], x[2]
@@ -32,6 +35,8 @@ def get_plot_values(category: str) -> tuple[np.ndarray, np.ndarray, np.ndarray]:
                 size=15,
                 line=dict(color=kwargs.get("line_color", "MediumPurple"), width=2),
             ),
+            hovertext=get_hovertexts(means, err_low, err_hi),
+            hoverinfo="text+x",
         ),
         layout=go.Layout(
             yaxis=dict(
@@ -55,6 +60,7 @@ def response(change):
             g.data[0].y = means
             g.data[0].error_y["array"] = err_hi
             g.data[0].error_y["arrayminus"] = err_lo
+            g.data[0].hovertext = get_hovertexts(means, err_lo, err_hi)
 
     selected_category.observe(response, names="value")
 
diff --git a/src/delphi/static/README.md b/src/delphi/static/README.md
new file mode 100644
index 00000000..815b0c42
--- /dev/null
+++ b/src/delphi/static/README.md
@@ -0,0 +1,10 @@
+# TODO: move this to delphi/static
+# Static Data Files
+
+
+## `token_map.pkl`
+pickle file: All locations of all tokens. dict of token to list of (doc, pos) pairs.
+
+## `model_group_stats.pkl`
+useful statistics for data visualization of (model, tokengroup) pairs; dict of (model, tokengroup) to dict of (str, float):
+e.g. {("llama2", "Is Noun"): {"mean": -0.5, "median": -0.4, "min": -0.1, "max": -0.9, "25th": -0.3, "75th": -0.7}, ...}
\ No newline at end of file
diff --git a/src/delphi/static/model_group_stats.pkl b/src/delphi/static/model_group_stats.pkl
new file mode 100644
index 00000000..7f5297c4
Binary files /dev/null and b/src/delphi/static/model_group_stats.pkl differ