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StepFun — AI News Today

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StepFun (阶跃星辰) — the Shanghai AI lab behind the Step family of multimodal foundation models, including Step 3.7 Flash.

www.stepfun.com
Models:Step 3.7Multimodal

101 stories mentioning StepFun

21 from search

About StepFun

StepFun is an AI company. StepFun (阶跃星辰) — the Shanghai AI lab behind the Step family of multimodal foundation models, including Step 3.7 Flash. This page tracks 101 recent news stories about StepFun, curated from 30+ sources and updated every 15 minutes.

StepFun — Coverage Momentum

4
This month
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vs last month
16
All-time
May 2026
Peak month
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5
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1
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4
AprMayJunJulAugSep

First tracked Mar 2026. Most-citing sources: r/LocalLLaMA (12), Marktechpost (3), Medium (1). Data aggregated by Best AI News Today from 30+ sources.

101 stories
1 of 5 Top Stories
China's AI smartphone race pits ZTE, StepFun, and Honor against limits of agentic computing
Top StoryMedia

China's AI smartphone race pits ZTE, StepFun, and Honor against limits of agentic computing

China's smartphone makers are racing to deploy AI agents that can autonomously complete tasks on your phone, a capability that could fundamentally reshape how billions of people interact with their devices—if the companies can overcome the technical barriers that have stymied even Silicon Valley's best efforts. ZTE, Honor, and the startup StepFun are each betting billions that they can solve agentic computing's hardest problems faster than Apple and Google, a calculation that hinges on whether Chinese AI models can achieve the reasoning depth and reliability required to safely handle real user data without constant human oversight. The outcome of this competition will likely determine whether the next generation of smartphones truly think for themselves or remain tethered to their current limits.

digitimes favicondigitimes·
RelatedGoogle Apple

12 sources

citynewsservice.cn faviconcitynewsservice.cnMSN faviconMSNGadgets 360 faviconGadgets 360
StepFun Step 5 Preview: ~600B MoE Long-Horizon Agent; Open Weights Due Oct 15
Media

StepFun Step 5 Preview: ~600B MoE Long-Horizon Agent; Open Weights Due Oct 15

Pandaily faviconPandaily·

3 sources

Pandaily faviconPandailymarktechpost.com faviconmarktechpost.com
Media

Geely Unveils AI-Powered Battery Charging System Amid Fierce EV Competition

Chinese automaker Geely Automobile unveiled an AI-powered charging system Wednesday as Chinese automakers compete to reduce battery charging times. Geely said the system uses a model developed with...

MarketScreener faviconMarketScreener·
StepFun Releases Step 5 Preview, Approaching GLM-5.3 Performance at $1 Input
Media

StepFun Releases Step 5 Preview, Approaching GLM-5.3 Performance at $1 Input

Hello, this is Masaki.A top-tier model has been priced at $1 per million input tokens. This is the new flagship, "Step 5 Preview," released by China's StepFun. They have made the sparse MoE, with ...

note faviconnote·
Discussions

this looks promising: stepfun-ai/Step-5-Preview-BF16 · Hugging Face

r/LocalLLaMA faviconr/LocalLLaMA·
Why Chinese AI firms are suddenly at the centre of US AI crackdown
Media

Why Chinese AI firms are suddenly at the centre of US AI crackdown

The Economic Times faviconThe Economic Times·
Media

U.S. accuses Chinese AI firms of stealing American AI model capabilities

The NSA, FBI, and CISA named DeepSeek, Alibaba, Moonshot AI, MiniMax, StepFun, and Z.AI as having extracted billions of tokens from U.S. frontier models since 2024 ...

Yahoo faviconYahoo·
StepFun's New Model, 1/7th the Cost
Media

StepFun's New Model, 1/7th the Cost

Chinese AI company StepFun has announced its new flagship model, "Step 5 Preview." API access is already available.Of the 600B, only 27B are activeThe total parameter count is 600B. However, it uses...

note faviconnote·
Media

StepFun's StepAudio 3 ASR takes the top non-streaming speech-to-text spot with 1.7% WER

StepFun has released StepAudio 3 ASR, ranking #1 on the AA-WER Index for non-streaming Speech to Text with 1.7% WER, a notable improvement on StepAudio 2.5 ASR (4.7%) StepAudio 3 ASR is StepFun's new...

24/7 Wall St. favicon24/7 Wall St.·
China's StepFun Releases 'Step 5 Preview': A Massive 600 Billion Parameter AI That Only Uses 27 Billion Per Run
Media

China's StepFun Releases 'Step 5 Preview': A Massive 600 Billion Parameter AI That Only Uses 27 Billion Per Run

Large, but not all of it works at onceOn September 20, 2026, Chinese AI company StepFun released its new flagship model, 'Step 5 Preview.' While the entire model contains 600 billion parameters, only...

note faviconnote·
Discussions

Stepfun new model "Step 5 Preview" just leaked

https://artificialanalysis.ai/models/step-5 https://preview.redd.it/tt7z192zkeqh1.png?width=1035&format=png&auto=webp&s=bf91d4fb080c5f6f2028cc8bddd58b0e5a04ece7...

r/LocalLLaMA faviconr/LocalLLaMA·
DeepSeek’s Efficiency Was Never Explained. The NSA, CISA and FBI Just Explained It.
Media

DeepSeek’s Efficiency Was Never Explained. The NSA, CISA and FBI Just Explained It.

by Kolabs News — Joint advisory AA26–251A from the NSA, CISA and FBI alleges DeepSeek, Moonshot AI, Alibaba, MiniMax, StepFun and Z.AI

Medium faviconMedium·
Media

Chinese AI Startups Garner 300B+ Yuan Capital in Half a Year: Where Do 77 Financing Deals Exceeding 100M Yuan Flow?

36 Kr favicon36 Kr·
Media

Geely’s smart charger can charge an EV quicker than a bathroom break

New charging tech can refill a Lynk & Co 01 and a Zeekr 001 from 10-70% in just four minutes and 30 seconds ...

Carscoops on MSN faviconCarscoops on MSN·
StepFun Launches Step 5 Preview: A 600B-Total, 27B-Active MoE Model With 1M Context for Long-Horizon Agentic Work
Research

StepFun Launches Step 5 Preview: A 600B-Total, 27B-Active MoE Model With 1M Context for Long-Horizon Agentic Work

StepFun has released Step 5 Preview, a sparse Mixture-of-Experts model with 600B total parameters and 27B active per token. It supports a 1M-token context window and accepts text, image, and video...

Marktechpost faviconMarktechpost·
Media

StepFun Launches Step 5 Preview: 600B Sparse MoE, 1M Context, Weights Open Oct 15

Pandaily faviconPandaily·
Media

StepAudio 3 Launch Puts StepFun First on Voice AI Benchmarks, but the Full Stack Faces a Harder Test

remio faviconremio·

3 sources

remio faviconremiowinbuzzer.com faviconwinbuzzer.com
US security agencies accuse Chinese AI firms of intellectual property theft
Media

US security agencies accuse Chinese AI firms of intellectual property theft

CISA, NSA, and FBI accuse six Chinese AI companies of extracting billions of tokens from US models through industrial-scale knowledge ...

Crypto Briefing faviconCrypto Briefing·
US intelligence advisory names six Chinese AI firms and lists the US models each one targeted
Media

US intelligence advisory names six Chinese AI firms and lists the US models each one targeted

A joint NSA, FBI and CISA advisory names DeepSeek, Moonshot AI, Alibaba, MiniMax, StepFun and Z.AI over industrial-scale distillation of US frontier AI models since late 2024.

The Next Web faviconThe Next Web·

Frequently Asked Questions

What is StepFun?

StepFun is StepFun (阶跃星辰) — the Shanghai AI lab behind the Step family of multimodal foundation models, including Step 3.7 Flash.

What is StepFun's official website?

StepFun's official website is https://www.stepfun.com.

What is the latest news about StepFun?

As of today, there are 101 recent stories about StepFun. Recent headlines include: StepFun Step 5 Preview: ~600B MoE Long-Horizon Agent; Open Weights Due Oct 15; StepFun's New Model, 1/7th the Cost; Geely’s smart charger can charge an EV quicker than a bathroom break. Updated every 15 minutes.