diff --git a/projects/implicitron_trainer/configs/repro_multiseq_base.yaml b/projects/implicitron_trainer/configs/repro_multiseq_base.yaml
index a63cbedf..578fe1a2 100644
--- a/projects/implicitron_trainer/configs/repro_multiseq_base.yaml
+++ b/projects/implicitron_trainer/configs/repro_multiseq_base.yaml
@@ -35,3 +35,4 @@ training_loop_ImplicitronTrainingLoop_args:
     camera_difficulty_bin_breaks:
       - 0.666667
       - 0.833334
+    is_multisequence: true
diff --git a/projects/implicitron_trainer/experiment.py b/projects/implicitron_trainer/experiment.py
index 1f65b5f1..a9e429fc 100755
--- a/projects/implicitron_trainer/experiment.py
+++ b/projects/implicitron_trainer/experiment.py
@@ -206,7 +206,6 @@ class Experiment(Configurable):  # pyre-ignore: 13
                 val_loader,
             ) = accelerator.prepare(model, optimizer, train_loader, val_loader)
 
-        task = self.data_source.get_task()
         all_train_cameras = self.data_source.all_train_cameras
 
         # Enter the main training loop.
@@ -223,7 +222,6 @@ class Experiment(Configurable):  # pyre-ignore: 13
             exp_dir=self.exp_dir,
             stats=stats,
             seed=self.seed,
-            task=task,
         )
 
     def _check_config_consistent(self) -> None:
diff --git a/projects/implicitron_trainer/impl/training_loop.py b/projects/implicitron_trainer/impl/training_loop.py
index 17b38a18..caafafd7 100644
--- a/projects/implicitron_trainer/impl/training_loop.py
+++ b/projects/implicitron_trainer/impl/training_loop.py
@@ -10,7 +10,6 @@ from typing import Any, Optional
 
 import torch
 from accelerate import Accelerator
-from pytorch3d.implicitron.dataset.data_source import Task
 from pytorch3d.implicitron.evaluation.evaluator import EvaluatorBase
 from pytorch3d.implicitron.models.base_model import ImplicitronModelBase
 from pytorch3d.implicitron.models.generic_model import EvaluationMode
@@ -101,7 +100,6 @@ class ImplicitronTrainingLoop(TrainingLoopBase):  # pyre-ignore [13]
         exp_dir: str,
         stats: Stats,
         seed: int,
-        task: Task,
         **kwargs,
     ):
         """
@@ -123,7 +121,6 @@ class ImplicitronTrainingLoop(TrainingLoopBase):  # pyre-ignore [13]
                     epoch=stats.epoch,
                     exp_dir=exp_dir,
                     model=model,
-                    task=task,
                 )
                 return
             else:
@@ -179,7 +176,6 @@ class ImplicitronTrainingLoop(TrainingLoopBase):  # pyre-ignore [13]
                         device=device,
                         dataloader=test_loader,
                         model=model,
-                        task=task,
                     )
 
                 assert stats.epoch == epoch, "inconsistent stats!"
@@ -200,7 +196,6 @@ class ImplicitronTrainingLoop(TrainingLoopBase):  # pyre-ignore [13]
                     exp_dir=exp_dir,
                     dataloader=test_loader,
                     model=model,
-                    task=task,
                 )
             else:
                 raise ValueError(
diff --git a/projects/implicitron_trainer/tests/experiment.yaml b/projects/implicitron_trainer/tests/experiment.yaml
index 6b5280da..5f0d62e2 100644
--- a/projects/implicitron_trainer/tests/experiment.yaml
+++ b/projects/implicitron_trainer/tests/experiment.yaml
@@ -435,3 +435,4 @@ training_loop_ImplicitronTrainingLoop_args:
     camera_difficulty_bin_breaks:
     - 0.97
     - 0.98
+    is_multisequence: false
diff --git a/pytorch3d/implicitron/dataset/data_source.py b/pytorch3d/implicitron/dataset/data_source.py
index 880679a6..9c749024 100644
--- a/pytorch3d/implicitron/dataset/data_source.py
+++ b/pytorch3d/implicitron/dataset/data_source.py
@@ -15,7 +15,7 @@ from pytorch3d.renderer.cameras import CamerasBase
 
 from .blender_dataset_map_provider import BlenderDatasetMapProvider  # noqa
 from .data_loader_map_provider import DataLoaderMap, DataLoaderMapProviderBase
-from .dataset_map_provider import DatasetMap, DatasetMapProviderBase, Task
+from .dataset_map_provider import DatasetMap, DatasetMapProviderBase
 from .json_index_dataset_map_provider import JsonIndexDatasetMapProvider  # noqa
 from .json_index_dataset_map_provider_v2 import JsonIndexDatasetMapProviderV2  # noqa
 from .llff_dataset_map_provider import LlffDatasetMapProvider  # noqa
@@ -41,9 +41,6 @@ class DataSourceBase(ReplaceableBase):
         """
         raise NotImplementedError()
 
-    def get_task(self) -> Task:
-        raise NotImplementedError()
-
 
 @registry.register
 class ImplicitronDataSource(DataSourceBase):  # pyre-ignore[13]
@@ -71,9 +68,6 @@ class ImplicitronDataSource(DataSourceBase):  # pyre-ignore[13]
         dataloaders = self.data_loader_map_provider.get_data_loader_map(datasets)
         return datasets, dataloaders
 
-    def get_task(self) -> Task:
-        return self.dataset_map_provider.get_task()
-
     @property
     def all_train_cameras(self) -> Optional[CamerasBase]:
         if self._all_train_cameras_cache is None:  # pyre-ignore[16]
diff --git a/pytorch3d/implicitron/dataset/dataset_map_provider.py b/pytorch3d/implicitron/dataset/dataset_map_provider.py
index 83e2617b..a1f62761 100644
--- a/pytorch3d/implicitron/dataset/dataset_map_provider.py
+++ b/pytorch3d/implicitron/dataset/dataset_map_provider.py
@@ -7,7 +7,6 @@
 import logging
 import os
 from dataclasses import dataclass
-from enum import Enum
 from typing import Iterator, Optional
 
 from iopath.common.file_io import PathManager
@@ -53,11 +52,6 @@ class DatasetMap:
             yield self.test
 
 
-class Task(Enum):
-    SINGLE_SEQUENCE = "singlesequence"
-    MULTI_SEQUENCE = "multisequence"
-
-
 class DatasetMapProviderBase(ReplaceableBase):
     """
     Base class for a provider of training / validation and testing
@@ -71,9 +65,6 @@ class DatasetMapProviderBase(ReplaceableBase):
         """
         raise NotImplementedError()
 
-    def get_task(self) -> Task:
-        raise NotImplementedError()
-
     def get_all_train_cameras(self) -> Optional[CamerasBase]:
         """
         If the data is all for a single scene, returns a list
diff --git a/pytorch3d/implicitron/dataset/json_index_dataset_map_provider.py b/pytorch3d/implicitron/dataset/json_index_dataset_map_provider.py
index 23da875f..d4f628c3 100644
--- a/pytorch3d/implicitron/dataset/json_index_dataset_map_provider.py
+++ b/pytorch3d/implicitron/dataset/json_index_dataset_map_provider.py
@@ -17,12 +17,7 @@ from pytorch3d.implicitron.tools.config import (
 )
 from pytorch3d.renderer.cameras import CamerasBase
 
-from .dataset_map_provider import (
-    DatasetMap,
-    DatasetMapProviderBase,
-    PathManagerFactory,
-    Task,
-)
+from .dataset_map_provider import DatasetMap, DatasetMapProviderBase, PathManagerFactory
 from .json_index_dataset import JsonIndexDataset
 
 from .utils import (
@@ -160,7 +155,7 @@ class JsonIndexDatasetMapProvider(DatasetMapProviderBase):  # pyre-ignore [13]
         # This maps the common names of the dataset subsets ("train"/"val"/"test")
         # to the names of the subsets in the CO3D dataset.
         set_names_mapping = _get_co3d_set_names_mapping(
-            self.get_task(),
+            self.task_str,
             self.test_on_train,
             self.only_test_set,
         )
@@ -185,7 +180,7 @@ class JsonIndexDatasetMapProvider(DatasetMapProviderBase):  # pyre-ignore [13]
             eval_batch_index = json.load(f)
         restrict_sequence_name = self.restrict_sequence_name
 
-        if self.get_task() == Task.SINGLE_SEQUENCE:
+        if self.task_str == "singlesequence":
             if (
                 self.test_restrict_sequence_id is None
                 or self.test_restrict_sequence_id < 0
@@ -267,13 +262,12 @@ class JsonIndexDatasetMapProvider(DatasetMapProviderBase):  # pyre-ignore [13]
         # pyre-ignore[16]
         return self.dataset_map
 
-    def get_task(self) -> Task:
-        return Task(self.task_str)
-
     def get_all_train_cameras(self) -> Optional[CamerasBase]:
-        if Task(self.task_str) == Task.MULTI_SEQUENCE:
+        if self.task_str == "multisequence":
             return None
 
+        assert self.task_str == "singlesequence"
+
         # pyre-ignore[16]
         train_dataset = self.dataset_map.train
         assert isinstance(train_dataset, JsonIndexDataset)
@@ -281,7 +275,7 @@ class JsonIndexDatasetMapProvider(DatasetMapProviderBase):  # pyre-ignore [13]
 
 
 def _get_co3d_set_names_mapping(
-    task: Task,
+    task_str: str,
     test_on_train: bool,
     only_test: bool,
 ) -> Dict[str, List[str]]:
@@ -295,7 +289,7 @@ def _get_co3d_set_names_mapping(
         - val (if not test_on_train)
         - test (if not test_on_train)
     """
-    single_seq = task == Task.SINGLE_SEQUENCE
+    single_seq = task_str == "singlesequence"
 
     if only_test:
         set_names_mapping = {}
diff --git a/pytorch3d/implicitron/dataset/json_index_dataset_map_provider_v2.py b/pytorch3d/implicitron/dataset/json_index_dataset_map_provider_v2.py
index 71a936b6..29027ec6 100644
--- a/pytorch3d/implicitron/dataset/json_index_dataset_map_provider_v2.py
+++ b/pytorch3d/implicitron/dataset/json_index_dataset_map_provider_v2.py
@@ -16,7 +16,6 @@ from pytorch3d.implicitron.dataset.dataset_map_provider import (
     DatasetMap,
     DatasetMapProviderBase,
     PathManagerFactory,
-    Task,
 )
 from pytorch3d.implicitron.dataset.json_index_dataset import JsonIndexDataset
 from pytorch3d.implicitron.tools.config import (
@@ -335,12 +334,6 @@ class JsonIndexDatasetMapProviderV2(DatasetMapProviderBase):  # pyre-ignore [13]
         )
         return category_to_subset_name_list
 
-    def get_task(self) -> Task:  # TODO: we plan to get rid of tasks
-        return {
-            "manyview": Task.SINGLE_SEQUENCE,
-            "fewview": Task.MULTI_SEQUENCE,
-        }[self.subset_name.split("_")[0]]
-
     def get_all_train_cameras(self) -> Optional[CamerasBase]:
         # pyre-ignore[16]
         train_dataset = self.dataset_map.train
diff --git a/pytorch3d/implicitron/dataset/rendered_mesh_dataset_map_provider.py b/pytorch3d/implicitron/dataset/rendered_mesh_dataset_map_provider.py
index 1c4fca43..3cc793fd 100644
--- a/pytorch3d/implicitron/dataset/rendered_mesh_dataset_map_provider.py
+++ b/pytorch3d/implicitron/dataset/rendered_mesh_dataset_map_provider.py
@@ -28,12 +28,7 @@ from pytorch3d.renderer import (
 )
 from pytorch3d.structures.meshes import Meshes
 
-from .dataset_map_provider import (
-    DatasetMap,
-    DatasetMapProviderBase,
-    PathManagerFactory,
-    Task,
-)
+from .dataset_map_provider import DatasetMap, DatasetMapProviderBase, PathManagerFactory
 from .single_sequence_dataset import SingleSceneDataset
 from .utils import DATASET_TYPE_KNOWN
 
@@ -83,9 +78,6 @@ class RenderedMeshDatasetMapProvider(DatasetMapProviderBase):  # pyre-ignore [13
         # pyre-ignore[16]
         return DatasetMap(train=self.train_dataset, val=None, test=None)
 
-    def get_task(self) -> Task:
-        return Task.SINGLE_SEQUENCE
-
     def get_all_train_cameras(self) -> CamerasBase:
         # pyre-ignore[16]
         return self.poses
diff --git a/pytorch3d/implicitron/dataset/single_sequence_dataset.py b/pytorch3d/implicitron/dataset/single_sequence_dataset.py
index 7cdccd23..c3db3909 100644
--- a/pytorch3d/implicitron/dataset/single_sequence_dataset.py
+++ b/pytorch3d/implicitron/dataset/single_sequence_dataset.py
@@ -21,12 +21,7 @@ from pytorch3d.implicitron.tools.config import (
 from pytorch3d.renderer import CamerasBase, join_cameras_as_batch, PerspectiveCameras
 
 from .dataset_base import DatasetBase, FrameData
-from .dataset_map_provider import (
-    DatasetMap,
-    DatasetMapProviderBase,
-    PathManagerFactory,
-    Task,
-)
+from .dataset_map_provider import DatasetMap, DatasetMapProviderBase, PathManagerFactory
 from .utils import DATASET_TYPE_KNOWN, DATASET_TYPE_UNKNOWN
 
 _SINGLE_SEQUENCE_NAME: str = "one_sequence"
@@ -159,9 +154,6 @@ class SingleSceneDatasetMapProviderBase(DatasetMapProviderBase):
             test=self._get_dataset(2, DATASET_TYPE_UNKNOWN, True),
         )
 
-    def get_task(self) -> Task:
-        return Task.SINGLE_SEQUENCE
-
     def get_all_train_cameras(self) -> Optional[CamerasBase]:
         # pyre-ignore[16]
         cameras = [self.poses[i] for i in self.i_split[0]]
diff --git a/pytorch3d/implicitron/eval_demo.py b/pytorch3d/implicitron/eval_demo.py
index b67e1b79..2dbebe52 100644
--- a/pytorch3d/implicitron/eval_demo.py
+++ b/pytorch3d/implicitron/eval_demo.py
@@ -7,11 +7,12 @@
 
 import dataclasses
 import os
+from enum import Enum
 from typing import Any, cast, Dict, List, Optional, Tuple
 
 import lpips
 import torch
-from pytorch3d.implicitron.dataset.data_source import ImplicitronDataSource, Task
+from pytorch3d.implicitron.dataset.data_source import ImplicitronDataSource
 from pytorch3d.implicitron.dataset.json_index_dataset import JsonIndexDataset
 from pytorch3d.implicitron.dataset.json_index_dataset_map_provider import (
     CO3D_CATEGORIES,
@@ -27,6 +28,11 @@ from pytorch3d.implicitron.tools.utils import dataclass_to_cuda_
 from tqdm import tqdm
 
 
+class Task(Enum):
+    SINGLE_SEQUENCE = "singlesequence"
+    MULTI_SEQUENCE = "multisequence"
+
+
 def main() -> None:
     """
     Evaluates new view synthesis metrics of a simple depth-based image rendering
@@ -153,11 +159,15 @@ def evaluate_dbir_for_category(
 
     if task == Task.SINGLE_SEQUENCE:
         camera_difficulty_bin_breaks = 0.97, 0.98
+        multisequence_evaluation = False
     else:
         camera_difficulty_bin_breaks = 2.0 / 3, 5.0 / 6
+        multisequence_evaluation = True
 
     category_result_flat, category_result = summarize_nvs_eval_results(
-        per_batch_eval_results, task, camera_difficulty_bin_breaks
+        per_batch_eval_results,
+        camera_difficulty_bin_breaks=camera_difficulty_bin_breaks,
+        is_multisequence=multisequence_evaluation,
     )
 
     return category_result["results"]
diff --git a/pytorch3d/implicitron/evaluation/evaluate_new_view_synthesis.py b/pytorch3d/implicitron/evaluation/evaluate_new_view_synthesis.py
index 0ef62477..19808ceb 100644
--- a/pytorch3d/implicitron/evaluation/evaluate_new_view_synthesis.py
+++ b/pytorch3d/implicitron/evaluation/evaluate_new_view_synthesis.py
@@ -14,7 +14,6 @@ from typing import Any, Dict, List, Optional, Sequence, Tuple, Union
 import numpy as np
 import torch
 import torch.nn.functional as F
-from pytorch3d.implicitron.dataset.data_source import Task
 from pytorch3d.implicitron.dataset.dataset_base import FrameData
 from pytorch3d.implicitron.dataset.utils import is_known_frame, is_train_frame
 from pytorch3d.implicitron.models.base_model import ImplicitronRender
@@ -420,16 +419,16 @@ def _get_camera_difficulty_bin_edges(camera_difficulty_bin_breaks: Tuple[float,
 
 def summarize_nvs_eval_results(
     per_batch_eval_results: List[Dict[str, Any]],
-    task: Task,
-    camera_difficulty_bin_breaks: Tuple[float, float] = (0.97, 0.98),
+    is_multisequence: bool,
+    camera_difficulty_bin_breaks: Tuple[float, float],
 ):
     """
     Compile the per-batch evaluation results `per_batch_eval_results` into
-    a set of aggregate metrics. The produced metrics depend on the task.
+    a set of aggregate metrics. The produced metrics depend on is_multisequence.
 
     Args:
         per_batch_eval_results: Metrics of each per-batch evaluation.
-        task: The type of the new-view synthesis task.
+        is_multisequence: Whether to evaluate as a multisequence task
         camera_difficulty_bin_breaks: edge hard-medium and medium-easy
 
 
@@ -439,14 +438,9 @@ def summarize_nvs_eval_results(
     """
     n_batches = len(per_batch_eval_results)
     eval_sets: List[Optional[str]] = []
-    if task == Task.SINGLE_SEQUENCE:
-        eval_sets = [None]
-        # assert n_batches==100
-    elif task == Task.MULTI_SEQUENCE:
+    eval_sets = [None]
+    if is_multisequence:
         eval_sets = ["train", "test"]
-        # assert n_batches==1000
-    else:
-        raise ValueError(task)
     batch_sizes = torch.tensor(
         [r["meta"]["batch_size"] for r in per_batch_eval_results]
     ).long()
@@ -466,11 +460,9 @@ def summarize_nvs_eval_results(
     # add per set averages
     for SET in eval_sets:
         if SET is None:
-            assert task == Task.SINGLE_SEQUENCE
             ok_set = torch.ones(n_batches, dtype=torch.bool)
             set_name = "test"
         else:
-            assert task == Task.MULTI_SEQUENCE
             ok_set = is_train == int(SET == "train")
             set_name = SET
 
@@ -495,7 +487,7 @@ def summarize_nvs_eval_results(
                 }
             )
 
-        if task == Task.MULTI_SEQUENCE:
+        if is_multisequence:
             # split based on n_src_views
             n_src_views = batch_sizes - 1
             for n_src in EVAL_N_SRC_VIEWS:
diff --git a/pytorch3d/implicitron/evaluation/evaluator.py b/pytorch3d/implicitron/evaluation/evaluator.py
index 12875179..bf3b51da 100644
--- a/pytorch3d/implicitron/evaluation/evaluator.py
+++ b/pytorch3d/implicitron/evaluation/evaluator.py
@@ -16,7 +16,6 @@ import torch
 import tqdm
 
 from pytorch3d.implicitron.dataset import utils as ds_utils
-from pytorch3d.implicitron.dataset.data_source import Task
 
 from pytorch3d.implicitron.evaluation import evaluate_new_view_synthesis as evaluate
 from pytorch3d.implicitron.models.base_model import EvaluationMode, ImplicitronModelBase
@@ -57,6 +56,7 @@ class ImplicitronEvaluator(EvaluatorBase):
     """
 
     camera_difficulty_bin_breaks: Tuple[float, ...] = 0.97, 0.98
+    is_multisequence: bool = False
 
     def __post_init__(self):
         run_auto_creation(self)
@@ -65,7 +65,6 @@ class ImplicitronEvaluator(EvaluatorBase):
         self,
         model: ImplicitronModelBase,
         dataloader: DataLoader,
-        task: Task,
         all_train_cameras: Optional[CamerasBase],
         device: torch.device,
         dump_to_json: bool = False,
@@ -80,7 +79,6 @@ class ImplicitronEvaluator(EvaluatorBase):
         Args:
             model: A (trained) model to evaluate.
             dataloader: A test dataloader.
-            task: Type of the novel-view synthesis task we're working on.
             all_train_cameras: Camera instances we used for training.
             device: A torch device.
             dump_to_json: If True, will dump the results to a json file.
@@ -122,7 +120,9 @@ class ImplicitronEvaluator(EvaluatorBase):
                 )
 
         _, category_result = evaluate.summarize_nvs_eval_results(
-            per_batch_eval_results, task, self.camera_difficulty_bin_breaks
+            per_batch_eval_results,
+            self.is_multisequence,
+            self.camera_difficulty_bin_breaks,
         )
 
         results = category_result["results"]