st5-xxl-best-avg-score

IN premise — summaries/2026/08/24/muennighoff-2022-mteb-s8-tasks.md

Created 2026-08-25T02:58:21+00:00

ST5-XXL achieves the highest average MTEB English score of 59.51, followed by GTR-XXL (58.97) and SGPT-5.8B-msmarco (58.81)

Summary

Among the models tested, ST5-XXL edges out GTR-XXL and SGPT-5.8B-msmarco as the top performer on the MTEB English benchmark, but the margin is under one point. This matters for model selection because it tells us the three are effectively competitive on English retrieval tasks, so other factors like speed, cost, or deployment constraints will likely decide which one to use.