Limits

This page lists Labelbox platform limits for different subscription types.

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)	500 LBU free each month	Fixed rate: $0.10 per LBU	No Limit	No Limit

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

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

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.

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

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

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	10	10	10	10
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.

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