Bluesky Alt Text
279K curated image descriptions from 489 validated accounts
279,196 rows
489 authors
CC-BY 4.0
+ firehose
279K
Corpus rows
126K
Firehose rows
203
Mean alt chars (corpus)
60.5%
>100 chars (corpus)
Targeted corpus
Firehose sample
Alt text length distribution
Languages
Corpus vs. Firehose
| Rows | 279,196 | 125,645 |
| Authors | 489 | 34,785 |
| Mean length | 203 ch | 282 ch |
| Median | 127 ch | 84 ch |
| >100 chars | 60.5% | 44.9% |
| >200 chars | 27.8% | 29.5% |