2 across 1 category board · 10 without a live endpoint · 6 equivalent routes
ModelCap tracks 12 canonical Stepfun Ai models as of 24 October 2026: 12 language models (2 with a public ModelCap Index position). Superseded versions and equivalent serving routes stay listed on this page, marked as such.
Step3 VL 10B is Stepfun Ai's highest-ranked model as of 24 October 2026, at ModelCap Index position #67 with a score of 61.1, followed by GELab Zero 4B preview (#227). The table lists every ranked Stepfun Ai model in Index order.
12 of 12 tracked Stepfun Ai models publish downloadable weights (open weights). ModelCap labels weight availability from repository metadata, not whether the training stack is open source; the licence class is shown beside each row.
Step3 VL 10B, first listed on 13 January 2026 and currently ModelCap Index #67. New Stepfun Ai models appear here as soon as they pass automatic identity checks; the launches page tracks releases across every publisher.