ON JULY 2ND, ACCORDING TO WIRED, THE U.S. DEPARTMENT OF COMMERCE HAS RECENTLY WITHDRAWN Anthropic High under FlagModel Export, re-export and internal transfer licence requirements for Fable 5 and Mythos 5。
Anthropic has also indicated on X that it will recover from today Claude Fable 5 access。
It is worth noting that, on the eve of the lifting of the embargo, the Chinese group of developers is experiencing the harshest "flags" in history. According to a transparency report released by Anthropic in early 2026, in the second half of 2025 alone, the company blocked approximately 1.45 million accounts。
In addition, blogger Legit Michel77 has recently found, through reverse analysis, that Claude Code has a hidden detection mechanism for Chinese users. This mechanism, which has been in operation since April this year, identifies users by checking the time zone of the system and the list of 147 specific domain names (100 degrees, Ali, byte, etc.)。
In order to achieve a non-emotional return, the tool encodes the results of the detection in the system ' s hints using covert writing techniques: in the case of the Chinese time zone, the date format will be changed from "2026-06-30 " to "2026/06/30 " ; and regular proxy users and AI laboratory institutions will be marked in layers by replacing the very small Unicode siding characters。
In response to this, Chariq Shihipar, director of Claude Code, responded yesterday that the function was an experimental measure to go online in March of this year, aimed at preventing the resale of accounts and the distillation of models, and announced that the relevant detection codes would be completely removed from the new version。