diff --git a/dashboard/python_scripts/compute_stats.py b/dashboard/python_scripts/compute_stats.py
new file mode 100644
index 00000000..505b3775
--- /dev/null
+++ b/dashboard/python_scripts/compute_stats.py
@@ -0,0 +1,169 @@
+import os
+import json
+import logging
+import subprocess
+from argparse import ArgumentParser
+from pathlib import Path
+from statistics import mean
+
+import datasets
+from datasets import config, load_from_disk
+from datasets.utils.logging import set_verbosity_info
+
+set_verbosity_info()
+logger = logging.getLogger(__name__)
+
+
+def get_args():
+    parser = ArgumentParser()
+    parser.add_argument(
+        "--dataset-path",
+        type=str,
+        required=True,
+        help="path to the parquet dataset folder",
+    )
+    parser.add_argument(
+        "--save-path-stats-json",
+        type=str,
+        required=True,
+        help="Where to save the stats json.",
+    )
+    parser.add_argument(
+        "--save-path-stats-full-json", type=str, help="Where to save the stats json."
+    )
+    parser.add_argument(
+        "--save-batch-size", type=int, required=True, help="Batch size when writing."
+    )
+    parser.add_argument("--use-datasets-caching", action="store_true")
+    parser.add_argument(
+        "--num-proc", type=int, default=1, help="Number of procs use for preprocessing."
+    )
+    parser.add_argument(
+        "--seed-id",
+        type=int,
+        required=True,
+        help="Value of the seed id.",
+    )
+    parser.add_argument(
+        "--num-examples",
+        type=int,
+        default=None,
+        help="Optional argument to select a subset (used for debugging purposes). Example `10`.",
+    )
+    args = parser.parse_args()
+
+    return args
+
+
+def main():
+    # Setup logging
+    logging.basicConfig(
+        format="%(asctime)s - %(levelname)s - %(name)s - %(message)s",
+        datefmt="%m/%d/%Y %H:%M:%S",
+        level=logging.INFO,
+    )
+    args = get_args()
+    logger.info(
+        f"** The job is runned with the following arguments: **\n{args}\n **** "
+    )
+
+    if os.path.isfile(args.save_path_stats_json):
+        logger.info(f" --- Statistics already computed for seed id {args.seed_id} ")
+        return
+
+    logger.info(f" --- Statistics not already computed for seed id {args.seed_id} ")
+    if not args.use_datasets_caching:
+        datasets.set_caching_enabled(False)
+    else:
+        logger.info(
+            f"the datasets results will be cached at {config.HF_DATASETS_CACHE}."
+        )
+
+    ds = load_from_disk(args.dataset_path)
+
+    if args.num_examples is not None:
+        ds = ds.select([i for i in range(args.num_examples)])
+
+    selected_mime_types = ["text/html"]
+    splits = {
+        **{
+            mime_type: ds.filter(
+                lambda mime_types_: [
+                    mime_type_ == mime_type for mime_type_ in mime_types_
+                ],
+                input_columns="content_mime_detected",
+                batched=True,
+                num_proc=args.num_proc,
+            )
+            for mime_type in selected_mime_types
+        },
+        "others": ds.filter(
+            lambda mime_types_: [
+                mime_type_ not in selected_mime_types for mime_type_ in mime_types_
+            ],
+            input_columns="content_mime_detected",
+            batched=True,
+            num_proc=args.num_proc,
+        ),
+    }
+
+    data_stats = {f"{split_name}_total": len(ds) for split_name, ds in splits.items()}
+
+    ds_html = splits["text/html"]
+
+    logger.info(f"the currents splits are {data_stats}.")
+
+    def get_length_text(example):
+        example["length_text"] = (
+            len(example["text"]) if example["text"] is not None else 0
+        )
+        return example
+
+    cols_to_remove = [
+        col
+        for col in ds.column_names
+        if col not in ["content_languages", "url_host_tld"]
+    ]
+    ds_html = ds_html.map(
+        get_length_text,
+        batched=False,
+        num_proc=args.num_proc,
+        remove_columns=cols_to_remove,
+    )
+
+    data_stats["html_empty_text"] = len([e for e in ds_html["length_text"] if e == 0])
+
+    non_empty_texts = [e for e in ds_html["length_text"] if e != 0]
+    data_stats["html_mean_length_non_empty_text"] = (
+        mean(non_empty_texts) if non_empty_texts != [] else None
+    )
+    data_stats["seed_id"] = args.seed_id
+
+    logger.info(
+        f"There is {data_stats['html_empty_text']} empty text rows out of {len(ds_html)} rows."
+    )
+
+    save_path = Path(args.save_path_stats_json)
+    save_path_tmp = f"{str(save_path.absolute())}.tmp"
+    logger.info(f"Saving the dataset at {save_path_tmp}")
+    with open(save_path_tmp, "w", encoding="utf-8") as f:
+        json.dump(data_stats, f, ensure_ascii=False, indent=4)
+    logger.info(f"Moving the saved dataset to {str(save_path.absolute())}")
+    subprocess.run(["mv", save_path_tmp, str(save_path.absolute())])
+
+    save_path = Path(args.save_path_stats_full_json)
+    tmp_file_name = f"tmp-{str(save_path.name)}"
+    save_path_tmp = os.path.join(save_path.parent, tmp_file_name)
+    logger.info(f"Saving the dataset at {save_path_tmp}")
+    ds_html.to_json(
+        save_path_tmp,
+        batch_size=args.save_batch_size,
+        num_proc=args.num_proc,
+        compression="gzip",
+    )
+    logger.info(f"Moving the saved dataset to {str(save_path.absolute())}")
+    subprocess.run(["mv", save_path_tmp, str(save_path.absolute())])
+
+
+if __name__ == "__main__":
+    main()
diff --git a/dashboard/slurm_scripts/compute_stats_on_pseudo_crawl.slurm b/dashboard/slurm_scripts/compute_stats_on_pseudo_crawl.slurm
new file mode 100644
index 00000000..acca9c78
--- /dev/null
+++ b/dashboard/slurm_scripts/compute_stats_on_pseudo_crawl.slurm
@@ -0,0 +1,44 @@
+#!/bin/bash
+#SBATCH --job-name=pseudo_crawl_compute_stats_v5
+#SBATCH --nodes=1
+#SBATCH --ntasks-per-node=1          # crucial - only 1 task per dist per node!
+#SBATCH --cpus-per-task=4         # number of cores per tasks
+#SBATCH --hint=nomultithread         # we get physical cores not logical
+#SBATCH --partition=cpu_p1
+#SBATCH --time 10:00:00              # maximum execution time (HH:MM:SS)
+#SBATCH --output=/gpfswork/rech/six/uty16tp/code/big_science/logs/compute_stats_v5/%x-%j.out           # output file name
+#SBATCH --array=1-604
+#SBATCH --account=six@cpu
+
+set -x -e
+
+source $six_ALL_CCFRWORK/start-prod
+conda activate thomas_data_tooling # Debug deepspeed temporarily
+
+CC_INDEX_FOLDER=$six_ALL_CCFRSCRATCH/pseudo_crawl/cc
+DATA_TOOLING_REPO=$WORK/repos/sync_data_tooling/data_tooling
+
+pushd $DATA_TOOLING_REPO
+
+SEED_ID=$(python cc_pseudo_crawl/load_all_seed_ids.py --seed-path "$DATA_TOOLING_REPO"/cc_pseudo_crawl/sourcing_sheet_seeds/ --seed-index $SLURM_ARRAY_TASK_ID)
+
+echo "Computing stats on seed id ${SEED_ID}"
+
+DATASET_PATH=$six_ALL_CCFRSCRATCH/pseudo_crawl/datasets-seeds/bigscience-catalogue-data/pseudo_crawl_seed--seed-id--"$SEED_ID"
+SAVE_STATS_PATH=$six_ALL_CCFRSCRATCH/pseudo_crawl/datasets-stats/bigscience-catalogue-data/seed_id="$SEED_ID"/stats.json
+SAVE_STATS_PATH_DIR=$six_ALL_CCFRSCRATCH/pseudo_crawl/datasets-stats/bigscience-catalogue-data/seed_id="$SEED_ID"/full
+SAVE_STATS_PATH_FULL=$SAVE_STATS_PATH_DIR/full.jsonl.gz
+
+mkdir -p $SAVE_STATS_PATH_DIR
+
+export HF_DATASETS_OFFLINE=1
+export HF_DATASETS_CACHE=$SCRATCH/to_delete
+
+python dashboard/python_scripts/compute_stats.py \
+    --dataset-path $DATASET_PATH \
+    --num-proc 4 \
+    --save-path-stats-json $SAVE_STATS_PATH \
+    --save-path-stats-full-json $SAVE_STATS_PATH_FULL \
+    --use-datasets-caching\
+    --seed-id $SEED_ID\
+    --save-batch-size 2 # 100 # 10 # 2