GPT-6.2 Astra Begins Gray Testing, Claude Mythos 5.5 Exposed on the Same Day
GPT-6.2-Astra appeared in some users' model lists, while Claude Mythos 5.5 briefly appeared in the official website's front-end code and was removed several hours later. Reports say Mythos 5.5 is a version that includes biological research and cybersecurity, and another repository claiming to contain leaked Mythos weights was published on HuggingFace and has already been downloaded by more than 5,000 people.
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Two new models appeared on the same day in the form of gray testing and official website code leaks, allowing readers to understand the current version cadence and release approach.
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GPT-6.2 Astra Begins Beta Testing! Claude Mythos 5.5 Exposed on the Same Day
Meng Chen 2026-11-02 12:28:53
Source: QbitAI
HuggingFace suspected leaked weights have been downloaded 5,000 times
Meng Chen, reporting from Beijing
QbitAI | WeChat Official Account QbitAI
Just as November began, GPT-6.2-Astra and Claude Mythos 5.5 ran into each other.
New models can't escape the pelican riding a bicycle test; you can see that Claude focuses on artistic style, while GPT focuses on physical effects.
First, on the GPT side, GPT-6.2-Astra appeared in some users' model lists.
Now on the Claude side, Mythos 5.5 briefly appeared in the front-end code of the official website and was removed a few hours later.
Mythos 5.5 will be a version that includes biological research and cybersecurity.
At the same time, a repository claiming to be Mythos leaked weights was published on HuggingFace.
Although it's unlikely to be real, more than 5,000 people have already downloaded it anyway.
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