StepFun Models: Intelligence, Performance & Price
Artificial Analysis Intelligence Index
* Estimated
Artificial Analysis has benchmarked 5 models from StepFun. Below is a comparison of the key metrics across these models.
- For intelligence, the top model from StepFun is Step 5 Preview at 44.
- For output speed, the fastest model is Step 3.7 Flash at 197 t/s.
- For latency, Step 3.7 Flash at 12.65s offers the lowest time to first answer token.
- For pricing, Step 5 Preview at $0.72 offers the lowest cost per task.
Intelligence
Artificial Analysis Intelligence Index
Intelligence Index vs. Cost per Intelligence Index Task
Cost
Cost per Intelligence Index Task
Speed & Latency
Output Speed
Capability Scores
Capability Indexes
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better
Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better
Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2.1, AA-Briefcase v1.1, Terminal-Bench 4.0 · Higher is better
Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2.1, AA-Briefcase v1.1, AA-LCR v1.1 · Higher is better
All StepFun Releases
Further details
Weights | Provider Benchmarks | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Step 5 Preview |  StepFun | 44 | 600B 27B active at inference time | 1M | $0.5 | 72 | Not available | | |
| Step 3.7 Flash | StepFun | 19 | 198B 11B active at inference time | 262k | $0.2 | 197 |  | ||
| Step 3.5 Flash 2603 | StepFun | 17 | - | 256k | $0.1 | 135 | Not available | | |
| Step 3.5 Flash | StepFun | 17 | 196B 11B active at inference time | 256k | $0.1 | 143 |  | ||
| Step3 VL 10B | StepFun | 8 | 10.2B | 66k | - | - | - |