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

# Limits

> Product limits broken down by subscription type.

## General

| Limit                                                      | Free                    | Starter                    | Enterprise | Education |
| ---------------------------------------------------------- | ----------------------- | -------------------------- | ---------- | --------- |
| API rate limit (requests/min)                              | 1,500                   | 5,000                      | 20,000     | 5,000     |
| Max users per organization                                 | 30                      | No limit                   | No limit   | No limit  |
| [Labelbox units (LBUs)](/docs/billing#labelbox-units-lbus) | 500 LBU free each month | Fixed rate: \$0.10 per LBU | No Limit   | No Limit  |

## Import

| Limit                                        | Free   | Starter  | Enterprise | Education |
| -------------------------------------------- | ------ | -------- | ---------- | --------- |
| Max data rows                                | 10M    | No limit | No limit   | 10M       |
| Max data rows per single API upload task     | 150K   | 150K     | 150K       | 150K      |
| Max data rows per bulk classification job    | 100K   | 100K     | 100K       | 100K      |
| Ground truth annotation import limit         | 10,000 | 2M       | 10M        | 2M        |
| Max character length for `global_keys`       | 200    | 200      | 200        | 200       |
| Max character length for raw text `row_data` | 64K    | 64K      | 64K        | 64K       |

## Export

| Limit                                             | Free     | Starter  | Enterprise | Education |
| ------------------------------------------------- | -------- | -------- | ---------- | --------- |
| Max number of running exports in a project        | 10       | 10       | 10         | 10        |
| Max number of running exports in an organization  | 20       | 20       | 20         | 20        |
| Max number of data rows using exports: `export()` | No limit | No limit | No limit   | No limit  |
| Max entries for `global_keys` filter              | 2,000    | 2,000    | 2,000      | 2,000     |
| Max entries for `data_row_ids` filter             | 2,000    | 2,000    | 2,000      | 2,000     |

## Schema

| Limit                               | Free  | Starter  | Enterprise | Education |
| ----------------------------------- | ----- | -------- | ---------- | --------- |
| Max ontologies                      | 25    | No limit | No limit   | No limit  |
| Max features per ontology\*\*       | 4,000 | 4,000    | 4,000      | 4,000     |
| Max custom metadata fields          | 5     | 100      | 500        | 100       |
| Max dimensions per custom embedding | 2048  | 2048     | 2048       | 2048      |
| Max custom embeddings per workspace | 100   | 100      | 100        | 100       |

\*\* The ontology feature limit applies to tools, options, classifications, and subclassifications.

## Annotate

| Limit                       | Free     | Starter  | Enterprise | Education |
| --------------------------- | -------- | -------- | ---------- | --------- |
| Max projects                | 50       | No limit | No limit   | 100,000   |
| Max project tags            | 3        | 5        | No Limit   | 3         |
| Max labels                  | No limit | No limit | No limit   | No limit  |
| Max data rows per workflow  | 10,000   | N/A      | N/A        | 10,000    |
| Max tasks per workflow      | 20       | 20       | 20         | 20        |
| Attachments layer limit     | 9        | 9        | 9          | 9         |
| Max frames per video        | 20,000   | 20,000   | 20,000     | 20,000    |
| Max messages per data row   | 250      | 250      | 250        | 250       |
| Max character limit         | 5,000    | 5,000    | 5,000      | 5,000     |
| Max unlabeled LLM data rows | N/A      | 20,000   | 20,000     | 20,000    |
| Max tags per project        | 3        | 5        | No limit   | 3         |
| Max model configuration\*\* | N/A      | 10\*     | 10         | N/A       |

\*\* Only Foundry subscribers can currently set this up.

## Catalog

| Limit                                                       | Free    | Starter | Enterprise | Education |
| ----------------------------------------------------------- | ------- | ------- | ---------- | --------- |
| Max slices per workspace                                    | 100     | 100     | 100        | 100       |
| Max data rows per bulk add metadata action                  | 100,000 | 100,000 | 100,000    | 100,000   |
| Max anchors per similarity search                           | 20      | 20      | 20         | 20        |
| Min characters for *find text* filter                       | 3       | 3       | 3          | 3         |
| Max characters for *find text* or *natural language* filter | 100     | 100     | 100        | 100       |
| Max words for *find text* or *natural language* filter      | 10      | 10      | 10         | 10        |

## Model

| Limit                                     | Free    | Starter | Enterprise | Education |
| ----------------------------------------- | ------- | ------- | ---------- | --------- |
| Max data rows per model run               | 150,000 | 1M      | 1M         | 1M        |
| Model run limit                           | 20      | 20      | 1,000      | 20        |
| Max slices per workspace                  | 100     | 100     | 100        | 100       |
| Max schemas per ontology for auto metrics | 50      | 50      | 50         | 50        |

## Performance

Exceeding these limits may cause performance issues.

| Limit                         | Free    | Starter | Enterprise | Education |
| ----------------------------- | ------- | ------- | ---------- | --------- |
| Annotations per label         | 5,000   | 5,000   | 5,000      | 5,000     |
| Annotations per label (video) | 1,000   | 1,000   | 1,000      | 1,000     |
| Max data rows per batch       | 100,000 | 100,000 | 100,000    | 100,000   |
| Max image size (megapixels)   | 81MP    | 81MP    | 81MP       | 81MP      |
| Asset size (local import)     | 256MB   | 256MB   | 256MB      | 256MB     |
| Asset size (cloud storage)    | 1GB     | 1GB     | 1GB        | 1GB       |