diff --git a/outputs/.gitignore b/outputs/.gitignore
index 2fcb03f7..f38f099f 100644
--- a/outputs/.gitignore
+++ b/outputs/.gitignore
@@ -6,3 +6,5 @@
 /mind-small-recommendations.parquet
 /mind-small-user-metrics.csv.gz
 /poprox.parquet
+/recommendations/*
+/embeddings.parquet
diff --git a/src/poprox_recommender/components/generators/context.py b/src/poprox_recommender/components/generators/context.py
index 52a17f61..7797343c 100644
--- a/src/poprox_recommender/components/generators/context.py
+++ b/src/poprox_recommender/components/generators/context.py
@@ -11,9 +11,12 @@
 
 model = SentenceTransformer("all-MiniLM-L6-v2")
 
-client = OpenAI(
-    api_key="Put your key here",
-)
+dev_mode = True
+
+if not dev_mode:
+    client = OpenAI(
+        api_key="Put your key here",
+    )
 
 
 class ContextGenerator(Component):
@@ -24,11 +27,12 @@ def __init__(self, text_generation=False, time_decay=True, topk_similar=5, other
         self.other_filter = other_filter
 
     def __call__(self, clicked: ArticleSet, recommended: ArticleSet) -> ArticleSet:
-        for article in recommended.articles:
-            generated_subhead = generated_context(
-                article, clicked, self.time_decay, self.topk_similar, self.other_filter
-            )
-            article.subhead = generated_subhead
+        if not dev_mode:
+            for article in recommended.articles:
+                generated_subhead = generated_context(
+                    article, clicked, self.time_decay, self.topk_similar, self.other_filter
+                )
+                article.subhead = generated_subhead
 
         return recommended
 
diff --git a/src/poprox_recommender/data/poprox.py b/src/poprox_recommender/data/poprox.py
index 366a9864..309c3c98 100644
--- a/src/poprox_recommender/data/poprox.py
+++ b/src/poprox_recommender/data/poprox.py
@@ -5,6 +5,7 @@
 # pyright: basic
 from __future__ import annotations
 
+from datetime import datetime
 import logging
 from typing import Generator
 from uuid import UUID
@@ -21,7 +22,12 @@
 
 
 class PoproxData(EvalData):
-    def __init__(self, archive: str = "POPROX"):
+    def __init__(
+        self,
+        archive: str = "POPROX",
+        start_date: datetime | None = None,
+        end_date: datetime | None = None,
+    ):
         (
             articles_df,
             mentions_df,
@@ -30,7 +36,7 @@ def __init__(self, archive: str = "POPROX"):
             clicked_articles_df,
             clicked_mentions_df,
             interests_df,
-        ) = load_poprox_frames(archive)
+        ) = load_poprox_frames(archive, start_date, end_date)
 
         self.newsletters_df = newsletters_df
 
@@ -159,11 +165,19 @@ def convert_row_to_article(self, article_row, mention_rows):
         )
 
 
-def load_poprox_frames(archive: str = "POPROX"):
+def load_poprox_frames(archive: str = "POPROX", start_date: datetime | None = None, end_date: datetime | None = None):
     data = project_root() / "data"
     logger.info("loading POPROX data from %s", archive)
 
     newsletters_df = pd.read_parquet(data / "POPROX" / "newsletters.parquet")
+    newsletters_df["created_at_date"] = pd.to_datetime(newsletters_df["created_at"])
+
+    if start_date:
+        logger.info("loading newsleters on or after %s", start_date)
+        newsletters_df = newsletters_df[newsletters_df["created_at_date"] >= start_date]
+    if end_date:
+        logger.info("loading newsleters before %s", end_date)
+        newsletters_df = newsletters_df[newsletters_df["created_at_date"] < end_date]
 
     articles_df = pd.read_parquet(data / "POPROX" / "articles.parquet")
     mentions_df = pd.read_parquet(data / "POPROX" / "mentions.parquet")
diff --git a/src/poprox_recommender/evaluation/generate.py b/src/poprox_recommender/evaluation/generate.py
index 055ce9fb..5a41831c 100644
--- a/src/poprox_recommender/evaluation/generate.py
+++ b/src/poprox_recommender/evaluation/generate.py
@@ -13,8 +13,8 @@
             write output to FILE [default: outputs/recommendations.parquet]
     -M DATA, --mind-data=DATA
             read MIND test data DATA
-    --data_path=<data_path>
-            path to PopRox data
+    -P DATA, --poprox-data=DATA
+            read POPROX test data DATA
     --subset=N
             test only on the first N test users
     --pipelines=<pipelines>...
@@ -174,12 +174,19 @@ def generate_user_recs(data: EvalData, pipe_names: list[str] | None = None, n_us
     pipelines = options["--pipelines"]
     print("Pipelines:", pipelines)
 
-    mind_data = options["--mind-data"]
-    data_path = options["--data_path"]
-    if mind_data is not None:
-        user_recs = generate_user_recs(MindData(mind_data), pipelines, n_users)
-    elif data_path is not None:
-        user_recs = generate_user_recs(PoproxData(data_path), pipelines, n_users)
+    if options["--poprox-data"]:
+        eval_data = PoproxData(options["--poprox-data"])
+    else:
+        eval_data = MindData(options["--mind-data"])
+
+    user_recs = generate_user_recs(eval_data, pipelines, n_users)
+
+    # mind_data = options["--mind-data"]
+    # data_path = options["--data_path"]
+    # if mind_data is not None:
+    #     user_recs = generate_user_recs(MindData(mind_data), pipelines, n_users)
+    # elif data_path is not None:
+    #     user_recs = generate_user_recs(PoproxData(data_path), pipelines, n_users)
 
     all_recs = pd.concat(user_recs, ignore_index=True)
     out_fn = options["--output"]
diff --git a/src/poprox_recommender/evaluation/generate/__main__.py b/src/poprox_recommender/evaluation/generate/__main__.py
index 9d4c0a39..ccbeb400 100644
--- a/src/poprox_recommender/evaluation/generate/__main__.py
+++ b/src/poprox_recommender/evaluation/generate/__main__.py
@@ -19,10 +19,19 @@
             use N parallel jobs
     --subset=N
             test only on the first N test profiles
+    --start_date=START_DATE
+            regenerate newsletters on and after START_DATE in the form mm/dd/yyyy
+    --end_date=END_DATE
+            regenerate newsleters before END_DATE in the form mm/dd/yyyy
+    --click_threshold=N
+            test only profiles with N clicks from start_date to end_date
+    --pipelines=<pipelines>...
+            list of pipeline names (separated by spaces)
 """
 
 import logging
 import shutil
+from datetime import datetime
 from pathlib import Path
 
 import pandas as pd
@@ -62,12 +71,29 @@ def generate_main():
     else:
         n_jobs = available_cpu_parallelism(4)
 
+    # parse start and end dates
+    start_date = None
+    end_date = None
+    if options["--start_date"]:
+        start_date = datetime.strptime(options["--start_date"], "%m/%d/%Y")
+    if options["--end_date"]:
+        end_date = datetime.strptime(options["--end_date"], "%m/%d/%Y")
+
+    # subset pipelines
+
     if options["--poprox-data"]:
-        dataset = PoproxData(options["--poprox-data"])
+        dataset = PoproxData(options["--poprox-data"], start_date, end_date)
     elif options["--mind-data"]:
         dataset = MindData(options["--mind-data"])
 
-    worker_usage = generate_profile_recs(dataset, outputs, n_profiles, n_jobs)
+    pipelines = None
+    if options["--pipelines"]:
+        pipelines = options["--pipelines"]
+        if isinstance(pipelines, str):
+            pipelines = [pipelines]
+        logger.info("generating pipelines: %s", pipelines)
+
+    worker_usage = generate_profile_recs(dataset, outputs, pipelines, n_profiles, n_jobs)
 
     logger.info("de-duplicating embeddings")
     emb_df = pd.read_parquet(outputs.emb_temp_dir)
diff --git a/src/poprox_recommender/evaluation/generate/worker.py b/src/poprox_recommender/evaluation/generate/worker.py
index 206bf79e..2dc197fa 100644
--- a/src/poprox_recommender/evaluation/generate/worker.py
+++ b/src/poprox_recommender/evaluation/generate/worker.py
@@ -29,7 +29,7 @@
 _emb_seen: set[UUID]
 
 
-def _init_worker(outs: RecOutputs):
+def _init_worker(outs: RecOutputs, pipelines: list[str] | None):
     global _worker_out, _emb_seen, _pipelines
     proc = mp.current_process()
     _worker_out = outs
@@ -38,6 +38,8 @@ def _init_worker(outs: RecOutputs):
     _worker_out.open(proc.pid)
 
     _pipelines = recommendation_pipelines(device=default_device())
+    if pipelines:
+        _pipelines = {name: _pipelines[name] for name in pipelines}
 
 
 def _finish_worker():
@@ -161,7 +163,9 @@ def extract_recs(
     return output_df, embeddings
 
 
-def generate_profile_recs(dataset: str, outs: RecOutputs, n_profiles: int | None = None, n_jobs: int = 1):
+def generate_profile_recs(
+    dataset: str, outs: RecOutputs, pipelines: list[str] | None = None, n_profiles: int | None = None, n_jobs: int = 1
+):
     logger.info("generating recommendations")
 
     profile_iter = dataset.iter_profiles()
@@ -179,7 +183,7 @@ def generate_profile_recs(dataset: str, outs: RecOutputs, n_profiles: int | None
             with ipp.Cluster(n=n_jobs) as client:
                 dv = client.direct_view()
                 logger.debug("initializing workers")
-                dv.apply_sync(_init_worker, outs)
+                dv.apply_sync(_init_worker, outs, pipelines)
 
                 logger.debug("dispatching jobs")
                 lbv = client.load_balanced_view()
@@ -192,7 +196,7 @@ def generate_profile_recs(dataset: str, outs: RecOutputs, n_profiles: int | None
 
         else:
             # directly call things in-process
-            _init_worker(outs)
+            _init_worker(outs, pipelines)
 
             for request in profile_iter:
                 _generate_for_request(request)