PII Arena
GLINER2 detector

gliner2-vladlinv PII detection benchmark

Measured on 41 of 41 retained datasets under the same frozen scoring and masking protocol.

46.09%fully hidden annotations
49.61%detected / overlapped
0.91%extra masking
690CPU characters / second

Strengths

Highest complete-masking rates by normalized data type.

Phone numbers & email82.75%18,190 / 21,981
People's names78.10%51,340 / 65,736
Dates & times71.28%3,922 / 5,502

Watch list

Lowest observed complete-masking rates; inspect before deployment.

Network identifiers1.33%341 / 25,631
Organizations1.61%310 / 19,274
Other sensitive attributes3.74%120 / 3,207

Language coverage

The overall leader can differ from the best choice for one language slice.

LanguageDatasetsFully hidden ↑Detected ↑Extra masking ↓
English1751.57%53.95%0.93%
Russian1943.18%47.52%0.89%
Multilingual549.64%51.89%0.18%

Configuration, source and version

Family
GLINER2
Revision
d4c05667b10d8e8db0f0626934135731d0530983
Eligible datasets
41 / 41
Character F1
0.572
Untouched diagnostic
50.39% · 114,622 / 227,466
Benchmark version
1.0.3 · 2026-09-09
CPU seconds / 10k chars
14.493
GPU seconds / 10k chars
0.173

Results by dataset

Complete masking is primary; detection shows whether any character overlapped.

DatasetGold annotationsFully hidden ↑Detected ↑Extra masking ↓
corrupt-secrets-issues2884.17%9.72%0.06%
secrets-issues2886.60%9.72%0.04%
rubai-ru3,4586.82%80.19%
leak-museum1018.91%10.89%0.00%
leaky-repo9517.89%18.95%0.00%
tab-echr3,83019.14%31.02%
synth-secrets-en58125.13%27.02%3.28%
alexen21,26126.33%100.00%0.00%
synth-ru-tickets32,09926.50%28.23%
synth-secrets-ru58128.06%30.64%3.43%
synth-env-configs39230.36%32.14%0.45%
multiconer-ru1,20832.04%39.40%3.65%
privy1,89933.33%33.81%1.63%
factrueval7,96633.42%33.54%
nerel24,36935.96%37.38%
ameau012,24239.12%39.16%0.05%
synth-jira-comments2,70539.33%39.93%
secrets-rules74641.02%44.24%10.30%
corrupt-redmadrobot5,53141.31%42.27%0.10%
gretel-multi4,48445.00%49.42%0.18%
scanpatch8,70846.41%48.11%0.57%
dialogpii-multi10,34547.13%52.69%
redact-multi22,86449.27%50.86%
redmadrobot5,51649.31%49.91%0.10%
redact-ru9,23049.64%51.65%3.76%
kiji-multi7,56552.62%52.99%
nym-multi8,16953.63%54.09%0.00%
kiji-en7,62354.87%55.21%
dialogpii-en3,08755.88%61.81%3.80%
creddata77656.31%59.41%1.37%
nym-en3,58460.18%61.19%1.13%
corrupt-hivetrace1,66760.59%65.27%0.46%
nemotron-pii9,39163.49%63.91%0.36%
jayguard1,19564.52%74.81%0.71%
nym-ru9,49764.75%65.52%
hivetrace1,66768.87%70.79%0.17%
synth-wiki-tables13,09469.10%73.45%
russian-pii-66k4,80569.80%69.89%
tonicai2,41774.27%76.42%0.42%
alrosait1,86290.71%97.15%1.59%
arthur-passwords28096.07%96.07%6.93%