Step-3 is Large yet Affordable: Model-system Co-design for Cost-effective Decoding
Report on the Step-3 vision-language model and its inference system, with StepFun as the author group; arXiv 2507.19427, version 1 of 25 July 2025 cited.
- Issued by
- StepFun / 阶跃星辰
- Authors credited
- Jiang Daxin · Jiao Binxing · Zhang Xiangyu · Zhu Yibo
- Dates
- Published 2025-07-25 issue evidence authorship evidence authorship evidence authorship evidence authorship evidence
- Exact source
- Step-3 is Large yet Affordable: Model-system Co-design for Cost-effective Decoding (arXiv abstract page, v1) arXiv · published 2025-07-25 · Dated document, retrieved on 2026-10-29 (SHA-256 b4595fd9b76a831dbb922ec1d0c5471efff5f22d2315956fd9e6221d655f8508) directly from the publisher. Version: 2507.19427v1. Abstract page of version 1 (submitted 2025-07-25); the page lists no later version at retrieval, not inspected.
- Step-3 is Large yet Affordable: Model-system Co-design for Cost-effective Decoding (arXiv PDF, v1) arXiv · published 2025-07-25 · Dated document, retrieved on 2026-10-29 (SHA-256 5a7d37ceac877d1b5ec21d53330bf5687c84db8b64da551829fb2c45992097eb) directly from the publisher. Version: 2507.19427v1. PDF of version 1; later versions not inspected.
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Issue and authorship records
- Issued by: StepFun / 阶跃星辰A StepFun team posted the Step-3 report to arXiv on 25 July 2025 (version 1), describing Step-3, a 321-billion-parameter vision-language model.2025-07-25 · publication · Stated in source · Supported Inspect claim & evidence ↗StepFun / 阶跃星辰: institution →
- Author: Jiang DaxinDaxin Jiang is listed among the authors of the Step-3 report (arXiv version 1), whose author list is headed "StepFun".2025-07-25 · publication · Stated in source · Supported Inspect claim & evidence ↗Jiang Daxin: person page →
- Author: Jiao BinxingBinxing Jiao is listed among the authors of the Step-3 report (arXiv version 1), whose author list is headed "StepFun".2025-07-25 · publication · Stated in source · Supported Inspect claim & evidence ↗Jiao Binxing: person page →
- Author: Zhang XiangyuXiangyu Zhang is listed among the authors of the Step-3 report (arXiv version 1), whose author list is headed "StepFun".2025-07-25 · publication · Stated in source · Supported Inspect claim & evidence ↗Zhang Xiangyu: person page →
- Author: Zhu YiboYibo Zhu is listed among the authors of the Step-3 report (arXiv version 1), whose author list is headed "StepFun".2025-07-25 · publication · Stated in source · Supported Inspect claim & evidence ↗Zhu Yibo: person page →
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