Step 3.5 Flash
Every figure OnlySOTA holds for this model, one source at a time. Nothing on this page is averaged across sources.
LOW-COST Retired
Identity
- Developer
- StepFun
- Family
- Step
- Weights
- closed
- Released
- 2026-02-02
- Blended Price, USD per 1M tokens (3:1 input:output)
- $0.15
- Sources
- 2 sources · 3 entries · 2 configs
- Published upstream as
-
Step 3.5 Flashstepfun-ai/Step-3.5-Flashstep-3.5-flashstep-3-5-flash
Where it places
- Artificial Analysis LLM Leaderboard Artificial Analysis Intelligence Index 26.5 est
- Arena — Text Overall (style control) #154 1394
Effort ladder
No source publishes more than one run configuration for this model.