Behaviorally fingerprinting Ox Alpha's provenance(www.ctgt.ai)
20 pointsby cgorlla7 hours ago5 comments
  • nijave2 hours ago
    Error messages matching Z.ai GLM I think are the simplest/most compelling. I had Opus 4.8 poke it and it came back with a couple different errors than the article mentions.

    Matching the tokenizer is interesting tho

  • hypferan hour ago
    Can someone explain why people care about that?

    Both as in "Why is there a stealth launch like that in the first place?" but also "Why does it matter? Is it very good in something?"

    • Philpaxan hour ago
      Stealth launch: builds hype, allows them to collect user preference data and see where the model fails. Why people care: it's free, decent, and people love a good mystery.
      • hypferan hour ago
        Aaah, free inference. Yeah that checks out and fits very well with weird Internet hype.

        Okay, fair enough. Thanks!

    • chermi34 minutes ago
      I think there was some loud speculation is was Google. It's cool people can pretty definitively show it's not. But also maybe Google is being crazy sneaky and faking it! (Joking)
    • tcdentan hour ago
      I think the stranger thing is that people spend tens of hours doing analysis like this to hit an inevitably-expiring hype cycle that will give us a definitive answer shortly.
      • chermi33 minutes ago
        Don't you think the forensics is fun?! This is exactly the sort of thing i would've expected hn to be broadly interesting. It's a complicated technology and people are poking it and learning things
      • cgorlla36 minutes ago
        It's fun! Also it's an interesting commentary on where the AI industry is as a whole.
    • cgorlla35 minutes ago
      It's decent. How good depends on compute needs.
  • dang3 hours ago
    Recent and related:

    Ox-Alpha Is GLM? - https://news.ycombinator.com/item?id=49422226 - Aug 2026 (65 comments)

    A mysterious free AI model is impressing developers. Nobody knows who made it - https://news.ycombinator.com/item?id=49406289 - Aug 2026 (4 comments)

    Ox Alpha - https://news.ycombinator.com/item?id=49381896 - Aug 2026 (202 comments)

  • johndough2 hours ago
    Another strong hint is that the uptime graph of GLM-5.3 by Z.ai is very similar to that of Ox Alpha:

    https://openrouter.ai/stealth/ox-alpha#uptime

    https://openrouter.ai/z-ai/glm-5.3#uptime

    Screenshot of a recent blip: https://files.catbox.moe/haq90y.png

  • UncleOxidantan hour ago
    Speculation that this is GLM 5.3 Flash.
    • cgorlla35 minutes ago
      Very likely, NYT confirmed it's releasing Friday.