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...

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
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  • 4 hours ago
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That reverse x axis sure is confusing.
I imagine they thought they'd look better this way. I don't think they do.
what country is behind this one ?
Step 3.5 Flash was made by Chinese company StepFun - https://en.wikipedia.org/wiki/StepFun
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.
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.
Princing can be found on their docs website https://platform.stepfun.ai/docs/en/pricing/details
  • deaux
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  • 3 hours ago
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Might want to give it a search.