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Step 3.5 Flash: Fast Enough to Think. Reliable Enough to Act(static.stepfun.com)
36 points by kristianp 4 hours ago | 10 comments
agentifysh 3 minutes ago | parent | next [-]

what country is behind this one ?

kristianp 4 hours ago | parent | prev | next [-]

Recent model released a couple of weeks ago. "Mixture of Experts (MoE) architecture, it selectively activates only 11B of its 196B parameters per token". Beats Kimi K2.5 and GLM 4.7 on more benchmarks than it loses to them.

Edit: there are 4 bit quants that can be run on an 128GB machine like a GB10 [1], AI Max+ 395, or mac studio.

[1] https://forums.developer.nvidia.com/t/running-step-3-5-flash...

danieltanfh95 2 hours ago | parent | prev | next [-]

Hallucinates like crazy. use with caution. Tested it with a simple "Find me championship decks for X pokemon", "How does Y deck work". Opus 4.6, Deepseek and Kimi all performed well as expected.

wmf 3 hours ago | parent | prev | next [-]

That reverse x axis sure is confusing.

esafak 37 minutes ago | parent [-]

I imagine they thought they'd look better this way. I don't think they do.

SilverElfin 2 hours ago | parent | prev [-]

So who exactly is StepFun? What is their business (how do they make money)? Each time I click “About Stepfun” somewhere on their website, it sends me to a generic landing page in a loop.

0x1997 an hour ago | parent | next [-]

https://en.wikipedia.org/wiki/StepFun

SilverElfin an hour ago | parent [-]

Thanks. Do they sell any of these products today or is it more like research? I am not able to find anything relating to pricing on their website. Just a chatbot.

0x1997 4 minutes ago | parent [-]

Princing can be found on their docs website https://platform.stepfun.ai/docs/en/pricing/details

deaux 2 hours ago | parent | prev [-]

Might want to give it a search.