- Services
Step is Stepfun’s language model family from Shanghai. Step-1 and Step-2 compete at the open frontier in Chinese and English, with Step-Audio variants for speech.
See all models from StepfunModels in family
2
Open weight
0
API only
2
Avg score
57.0
Top benchmark
73.4
Arena Score
Total HF downloads
—
Primary modality
Text
Context window
16K
First release
Nov 2024
Latest release
May 2025
Every release in the Step family, ranked by composite score across benchmarks, popularity, efficiency, and versatility.
| # | Model | Modality | Score | Params | Released |
|---|---|---|---|---|---|
| 1 | Step 1o Turbo (202506)API | text | BB57.9 | — | May 2025 |
| 2 | Step 2 16K Exp (202412)API | text | BB56.2 | — | Nov 2024 |
When each release shipped, newest first. Useful for tracking version cadence.
May 31
Nov 30
Composite grades across this family. Higher is better, blending benchmarks, popularity, and efficiency.
Closed-source releases accessed through Stepfun’s API.
| # | Model | Modality | Score | Params | Released |
|---|---|---|---|---|---|
| 1 | Step 1o Turbo (202506)API | text | BB57.9 | — | May 2025 |
| 2 | Step 2 16K Exp (202412)API | text | BB56.2 | — | Nov 2024 |
The Step family is a series of AI models from Stepfun. This page lists every release in the family with its benchmark scores, parameter count, and hardware requirements.
By composite score, Step 1o Turbo (202506) is currently the top model in the family. For local inference, match the parameter count to your VRAM budget. For quality, pick the highest scorer that fits.
See the open-weight section above for models you can run locally. The API-only section lists closed releases that must be accessed through the provider’s API.
Spin up an instance in the cloud, or pick local hardware that fits.
Advertising disclosure: we earn commissions when you shop through the links below.
Vast.ai
Decentralized GPU marketplace with the lowest hourly prices.
RunPod
Pay-per-second GPU rentals starting at $0.20/hr.
Digital Ocean
Spin up a GPU droplet in minutes, starting at $0.75/hr.
Vultr
GPU cloud with hourly and monthly plans, starting at $0.50/hr.
GPU Mart
Dedicated GPU servers and VPS billed monthly, starting at $0.50/hr.
PPQ.ai
Multi-model inference gateway for production workloads.
Find Local Hardware
See which GPU, Mac, or workstation can run Step on-prem.
Local LLM Mini PCs
Compact machines that run Step on your desk. Chosen for local inference.
