Revision History
StepFun · 14 revisions
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Recent edit summaries
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- Correction: Step-3 was unveiled on July 25, 2025, the eve of WAIC, not at WAIC on July 26 (cross-check with step_3, Leiphone)
Version 14 · Sep 23, 2026, 12:02 PM
- Correction: Series A investor is Lenovo Capital (not Legend Capital); ~70% throughput wording per StepFun; App Store listing title; Zhu Yibo citations; angel round date (independent verification V1)
Version 13 · Sep 23, 2026, 11:48 AM
- Correction: Series A investors (angel HongShan/Qiming/IDG, Series A 5Y/Shunwei/Legend), Xiaomi wrongly listed in Series B, Step-3 context (65,536 not 800K) and throughput comparison (4,039 vs 2,324, ~74%), Step 3.5 Flash AIME/HMMT settings and type (language, not multimodal), Step3-VL-10B date (Jan 2026), Galaxy M9 sales window (3 months), Zhu Yibo Chinese name and career order, Zhang Xiangyu not co-founder, Step-1 timeline, headquarters address, unsourced unicorn/valuation/170% claims removed; update: pre-IPO round, joint-stock conversion, reported HK IPO filing, Step 3.7 Flash, Step Plan, StepFun AI app, Step 5 Preview
Version 12 · Sep 23, 2026, 11:17 AM
- Correction: Hong Kong Investment Corporation invested in the May 2026 pre-IPO round (Sina), not the January 2026 Series B+; Zhu Yibo is not sourced as a Microsoft alumnus; Step 3.5 Flash context stated as 256K per model card
Version 11 · Sep 23, 2026, 07:58 AM
- Added 6 contextual internal links
Version 10 · Jul 23, 2026, 03:19 PM