{"city":"Shanghai","name":"StepFun","slug":"stepfun","facts":[{"date":"2026-09-20","type":"product_launch","value":"Step 5 Preview flagship agentic model launched with 600 billion total parameters, 27 billion active parameters per token, 1 million-token context and vision input","source":"stepfun.com"},{"date":"2026-09-15","type":"product_launch","value":"StepAudio 3 family launched, including realtime interaction, speech recognition, speech synthesis, voice generation and music generation models","source":"stepfun.com"},{"date":"2026-05-29","type":"product_launch","value":"Step 3.7 Flash agent model launched and made open source","source":"stepfun.com"},{"date":"2026-04-27","type":"partnership","value":"Strategic partnership with Tencent Cloud focused on intelligent cockpits","source":"stepfun.com"},{"date":"2026-03-17","type":"deployment","value":"Step 3.5 Flash integrated into Geely’s ZEEKR 8X vehicle intelligent-agent system","source":"stepfun.com"},{"date":"2026-02-02","type":"product_launch","value":"Step 3.5 Flash open-weight agent foundation model launched","source":"stepfun.com"}],"peers":[],"stage":"private","state":"Shanghai","aliases":["Step 5 Preview","Step AOS","STEPX Neo"],"country":"China","domains":[{"why":"StepFun markets Step 3.5 Flash as an open-weight foundation model through its platform, GitHub, Hugging Face and ModelScope for developers and enterprises.","list":null,"rank":null,"tier":"prospect","layer":null,"total":37,"domain":"AI Core","scores":{"gate_ne":["firepower"],"leverage":4,"position":3,"progress":9,"firepower":1,"commercial":1,"deployment":4,"production":5,"technology":3},"edition":null,"segment":null}],"founded":null,"signals":[{"date":"2026-10-16","header":"Huawei brought its first 1,024-card Atlas 950 SuperPoD online alongside Step 5 Preview’s release.","outlet":"Pandaily"},{"date":"2026-10-16","header":"Ascend, MetaX, Biren and Moore Threads provided day-zero support for StepFun’s Step 5 Preview.","outlet":"Pandaily"},{"date":"2026-10-15","header":"StepFun releases open weights for Step 5 Preview with 600B parameters and 1M context","outlet":"Pandaily"},{"date":"2026-10-13","header":"StepFun launched its first agentic smartphone, STEPX Neo, at RMB 3,999.","outlet":"Caixin"},{"date":"2026-10-13","header":"STEPX Neo uses a six-microphone array, a low-power audio chip, and Whisper 1.0 for enhanced voice recognition.","outlet":"Caixin"},{"date":"2026-10-13","header":"StepFun partnered with eight consumer platforms for STEPX Neo.","outlet":"Caixin"}],"website":"https://www.stepfun.com/","category":"AI · Models & applications","categories":[{"name":"AI · Models & applications","domain":"AI Core","parent":null}],"last_round":null,"updated_at":"2026-10-19T10:00:52.049+00:00","facts_total":9,"positioning":"","sub_category":null,"signals_total":28,"url":"https://www.frontiertechintelligence.com/companies/stepfun","title":"StepFun · ai core, Shanghai, Shanghai, China · scores, facts and signals · Frontier Tech Intelligence","description":"StepFun markets Step 3.5 Flash as an open-weight foundation model through its platform, GitHub, Hugging Face and ModelScope for developers and enterprises. AI Core prospect (score 37) 28 signals and 9 facts with sources.","publisher":"Frontier Tech Intelligence (Future Frontiers, a trade name of Essential Cognition Inc.)","note":"Assessment by Frontier Tech Intelligence; facts and signals carry their sources."}