StepFun

company

https://www.stepfun.com/

AI & ML interests

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Recent Activity

bwang3579 authored a paper 3 days ago

Have Seen Me Before? Automating Dataset Updates Towards Reliable and Timely Evaluation

bwang3579 authored a paper 3 days ago

Step-Video-T2V Technical Report: The Practice, Challenges, and Future of Video Foundation Model

bwang3579 authored a paper 3 days ago

Step-Video-TI2V Technical Report: A State-of-the-Art Text-Driven Image-to-Video Generation Model

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Papers

Step-Audio-R1.5 Technical Report

GEditBench v2: A Human-Aligned Benchmark for General Image Editing

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Collections 12

View 12 collections

spaces 11

Step-Audio-EditX

Try out Step-Audio-EditX

Step-3.5-Flash Chatbot

Run interactive Streamlit apps directly in your browser

Step3 VL 10B

Chat with a multimodal AI using text and images

Step Audio R1.1

Step-Audio-R1.1

Step-3

Interact with a multimodal AI assistant using text and images

NextStep 1 Large Edit

Modify images based on text prompts

models 47

stepfun-ai/Step-3.5-Flash

Text Generation • 199B • Updated Mar 17 • 240k • • 803

stepfun-ai/Step-3.5-Flash-Base-Midtrain

Text Generation • 198B • Updated Mar 9 • 121 • 40

stepfun-ai/Step-3.5-Flash-Base

Text Generation • 198B • Updated Mar 9 • 170 • 84

stepfun-ai/Step-3.5-Flash-FP8

Text Generation • 199B • Updated Mar 9 • 41.7k • 53

stepfun-ai/NextStep-1.1-Pretrain-256px

Text-to-Image • 15B • Updated Feb 16 • 20 • 13

stepfun-ai/Step-Audio-R1.1

Audio-Text-to-Text • 33B • Updated Feb 14 • 479 • 179

stepfun-ai/Step-Audio-EditX

4B • Updated Feb 14 • 39.4k • 119

stepfun-ai/Step-Audio-2-mini

Any-to-Any • Updated Feb 14 • 2.47k • 254

stepfun-ai/Step-3.5-Flash-GGUF-Q8_0

197B • Updated Feb 13 • 60 • 3

stepfun-ai/Step-3.5-Flash-GGUF-Q4_K_S

Text Generation • 197B • Updated Feb 13 • 6.19k • 144

datasets 13

stepfun-ai/Step-3.5-Flash-SFT

Viewer • Updated Mar 14 • 1.62M • 11.5k • 331

stepfun-ai/GEBench

Updated Feb 25 • 330 • 11

stepfun-ai/NextStep-data

Preview • Updated Feb 16 • 268 • 6

stepfun-ai/CF-Div2-Stepfun

Viewer • Updated Feb 12 • 53 • 131 • 7

stepfun-ai/PaCoRe-Train-8k

Viewer • Updated Jan 14 • 7.52k • 1.24k • 80

stepfun-ai/AndroidDaily

Viewer • Updated Dec 19, 2025 • 235 • 112 • 16

stepfun-ai/StepFun-Formalizer-Training

Viewer • Updated Oct 13, 2025 • 188k • 362 • 5

stepfun-ai/StepEval-Audio-Paralinguistic

Viewer • Updated Aug 29, 2025 • 550 • 998 • 10

stepfun-ai/StepEval-Audio-Toolcall

Updated Aug 29, 2025 • 102 • 6

stepfun-ai/Step1X-3D-obj-data

Preview • Updated May 22, 2025 • 77 • 10

View 13 datasets