1 across 1 category board · 6 equivalent routes
ModelCap tracks 1 canonical Stepfun Ai model as of 9 September 2026: 1 language model (1 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 Superseded versions and equivalent serving routes stay listed on this page, marked as such.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 9 September 2026, at ModelCap Index position #44 with a score of 60.6. The table lists every ranked Stepfun Ai model in Index order.
1 of 1 tracked Stepfun Ai model publishes 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 #44. New Stepfun Ai models appear here as soon as they pass automatic identity checks; the launches page tracks releases across every publisher.