> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wandb.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# How do I delete many artifacts at once?

When you need to delete many artifact versions, such as to reduce storage usage, use the [W\&B Public API](/models/ref/python/public-api/api) instead of the W\&B App. Bulk deletions in the App can time out with a `context deadline exceeded` error, and the artifact list is not designed for deleting hundreds of versions.

The following script deletes all artifact versions of a specified type in a project.

Replace the `[YOUR-TEAM]` and `[YOUR-PROJECT]` placeholders with your own values. Use your team or username for `[YOUR-TEAM]`, not your organization name.

<Warning>
  Artifact deletion is destructive. When deleting source artifact versions, W\&B deletes the artifact and its files. Passing `delete_aliases=True` enables deletion of versions with aliases such as `latest`, and removes those aliases.

  Use `DRY_RUN = True` first, review the printed artifact names, and only then set DRY\_RUN = False.
</Warning>

```python theme={null}
import wandb

# Assumes you've run `wandb login` already.
entity = "[YOUR-TEAM]"  # Replace with your team.
project = "[YOUR-PROJECT]"  # Replace with your project.
artifact_type = "model"  # Replace with the artifact type to delete.

# Keep this set to True until you review the versions to delete.
DRY_RUN = True

api = wandb.Api()

for collection in api.artifact_collections(f"{entity}/{project}", artifact_type):
    for version in collection.artifacts():
        if DRY_RUN:
            print(f"[dry-run] would delete {version.name}")
        else:
            print(f"Deleting {version.name}")
            version.delete(delete_aliases=True)
```

The script deletes artifact versions, not collections. An emptied collection still appears in the project's **Artifacts** tab.

`wandb.Api.artifact_collections()` returns both source collections and link collections:

* A source collection contains artifact versions logged to runs in the project.
* A link collection contains references to artifact versions linked to another collection, such as a collection in a registry.

For more information, see [Link an artifact version to a collection](/models/registry/link_version).

When a version comes from a link collection, `version.delete(delete_aliases=True)` removes only the link. The source artifact and its files stay where they are, so that version frees no storage.

## Reclaim the space

Deleted artifacts are soft-deleted first, then removed during garbage collection, so your storage usage doesn't drop immediately. For the timing and how to verify your usage, see [Why doesn't my storage usage update after deleting runs?](/support/models/articles/why-does-the-storage-meter-not-update-af) and [Delete an artifact](/models/artifacts/delete-artifacts).

***

<Badge stroke shape="pill" color="orange" size="md">[Artifacts](/support/models/tags/artifacts)</Badge><Badge stroke shape="pill" color="orange" size="md">[Storage](/support/models/tags/storage)</Badge><Badge stroke shape="pill" color="orange" size="md">[Python API](/support/models/tags/python-api)</Badge>