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Step 5 Preview: Advancing the Pareto Frontier

141 points · 33 comments · nateb2022

nh43215rgb · 1789885567 · focus · HN ↗
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  &gt; Built on a sparse Mixture-of-Experts architecture, Step 5 Preview has 600B total parameters, with 27B active per token, and supports a 1M-token context window and vision input.

  &gt; Step 5 Preview scores 44 on the Artificial Analysis Intelligence Index.

  &gt; The model will be released with open weights on October 15.
```
I guess being Chinese company they decided to skip version 4, while also giving impression to be on the similar iteration with leading companies (claude opus 5). I wonder if other Chinese labs like Kimi/Moonshot will follow suit.
1. JohnsonZou · 1789893550 · focus · HN ↗
  Another possible reason is that the number 4 is considered unlucky in traditional Chinese culture.
  1. zozbot234 · 1789901964 · focus · HN ↗
    Parent commenter hinted at that. Yet DeepSeek has released their V4 which was hugely successful, and even their new architecture is marked V4.1. Qwen internals mark their Flash-Next model, also very compelling, as "qwen4exp". So both of them are bucking the negative stereotype.

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