Step-3.5-Flash

stepfun-ai

Arena score
1403
Among open models
#43of 144
Among all on Arena
#152
Votes
60,305

Measured on Step-3.5-Flash, the served version, not a local build. LMArena, CC BY 4.0, published Oct 28, 2026.

Score by category

CategoryScore
  • Chinese1446
  • Coding1436
  • Software & IT1435
  • French1422
  • Expert1422
  • Applied math1421
  • Hard prompts, English1421
  • Spanish1418
  • English1417
  • Science1414
  • Hard prompts1411
  • Medicine & health1409
  • Math1408
  • Legal & government1408
  • German1405
  • Multi-turn1405
  • Long prompts1402
  • Business & finance1394
  • Polish1389
  • Non-English1385
  • Russian1385
  • Instructions1385
  • Excluding ties1384
  • Writing & literature1372
  • Media & sports1360
  • Creative writing1357
  • Japanese1353
  • Korean1350

BenchClub runs

Not runnable yet

Runs open once a Step-3.5-Flash build is registered.