Provider, China
StepFun models
StepFun's highest-ranked model is Step 5 Preview, #58 on the Noometry Index as of October 2026. Noometry tracks 8 StepFun models, 3 with open weights.
Last verified
| 58 |  StepFun Step 5 Preview | StepFun | Proprietary | 1.02M | 47.9 | $1 | $2.70 | 33.6 | — |
| 116 | StepFun Step 3.5 Flash | StepFun | Open | 256K | 42.3 | $0.10 | $0.30 | 282 | — |
| 149 | StepFun Step 3 | StepFun | Open | — | 40.5 | — | — | — | 7 |
| 160 | StepFun Step 1o Turbo 202506 | StepFun | Proprietary | — | 39.7 | — | — | — | — |
| 171 | StepFun Step 2 16k Exp 202412 | StepFun | Proprietary | — | 39.2 | — | — | — | — |
| 207 | StepFun Step 3.7 Flash | StepFun | Open | 256K | 37.3 | $0.18 | $1.11 | 89.6 | — |
| StepFun Step 1 (32K) | StepFun | Proprietary | 33K | Not ranked | $2.05 | $9.59 | — | — | |
| StepFun Step 2 (16K) | StepFun | Proprietary | 16K | Not ranked | $5.21 | $16.44 | — | — |
StepFun's best vs other flagships
Frequently asked questions
What is the best StepFun model?
StepFun's highest-ranked model is Step 5 Preview, #58 on the Noometry Index as of October 2026. Noometry tracks 8 StepFun models, 3 with open weights.
What is the cheapest StepFun model?
Step 3.5 Flash has the lowest input price among StepFun models we track: $0.10 per million input tokens and $0.30 per million output tokens.