AlephLM-0 benchmark
| model | params | STS-B | SICK-R | STS12 | STS13 | STS14 | STS15 | STS16 | BIOSSES | mean |
|---|---|---|---|---|---|---|---|---|---|---|
| bert-base | 109.5M | 0.4729 | 0.5865 | 0.3087 | 0.5988 | 0.4773 | 0.6029 | 0.6373 | 0.5467 | 0.5289 |
| ModernBERT-base | 149.0M | 0.4215 | 0.5479 | 0.3527 | 0.4247 | 0.3795 | 0.5349 | 0.4174 | 0.5630 | 0.4552 |
| roberta-base | 124.6M | 0.5436 | 0.6296 | 0.3211 | 0.5631 | 0.4522 | 0.6134 | 0.6198 | 0.5777 | 0.5400 |
| albert-base-v2 | 11.7M | 0.4784 | 0.5364 | 0.3101 | 0.4831 | 0.3809 | 0.5542 | 0.5491 | 0.4863 | 0.4723 |
| distilbert | 66.4M | 0.5717 | 0.6424 | 0.4344 | 0.6490 | 0.5410 | 0.6663 | 0.6854 | 0.5162 | 0.5883 |
| all-MiniLM-L6-v2 | 22.7M | 0.8203 | 0.7758 | 0.7237 | 0.8058 | 0.7559 | 0.8539 | 0.7899 | 0.8144 | 0.7925 |
| captionbert-v2 | 58.3M | 0.5747 | 0.6526 | 0.5051 | 0.5995 | 0.5452 | 0.7136 | 0.6776 | 0.5933 | 0.6077 |
| captionbert-v2 + arms | 63.2M | 0.7684 | 0.7391 | 0.6682 | 0.7557 | 0.6921 | 0.8055 | 0.7626 | 0.6382 | 0.7287 |
| captionbert-b | 58.3M | 0.5752 | 0.6548 | 0.5012 | 0.6037 | 0.5470 | 0.7146 | 0.6782 | 0.5500 | 0.6031 |
| captionbert-b + arms | 63.2M | 0.7675 | 0.7374 | 0.6705 | 0.7381 | 0.6945 | 0.8109 | 0.7695 | 0.6472 | 0.7294 |
| alephlm0-a1_anchored-s0 [cls] | 58.3M | 0.5731 | 0.6528 | 0.4996 | 0.6014 | 0.5457 | 0.7121 | 0.6761 | 0.5639 | 0.6031 |
| alephlm0-a1_anchored-s0 OFF [cls] | 58.3M | 0.5809 | 0.6226 | 0.5200 | 0.5720 | 0.5554 | 0.6773 | 0.6232 | 0.4434 | 0.5743 |
| alephlm0-a2_dense-s0 [cls] | 58.3M | 0.5731 | 0.6507 | 0.4965 | 0.5962 | 0.5430 | 0.7130 | 0.6798 | 0.5683 | 0.6026 |
| alephlm0-a3_random-s0 [cls] | 58.3M | 0.5707 | 0.6538 | 0.4966 | 0.5998 | 0.5448 | 0.7103 | 0.6806 | 0.5703 | 0.6033 |
| alephlm0-a3_random-s0 OFF [cls] | 58.3M | 0.5767 | 0.6309 | 0.4948 | 0.5735 | 0.5486 | 0.6851 | 0.6307 | 0.4776 | 0.5772 |
AlephLM-0 rows are evaluated with each run's OWN trained pooling (labeled); raw-teacher context rows are mean-pooled per the certified harness. 'OFF' rows = anchored trunks with dispatch disabled (the C6 toggle-law read).