Monitoring report claims DeepSeek-V4-Pro can trigger a built-in "whale girl mode" with a prompt
A BlockBeats brief, citing monitoring by Dongcha Beating and a tip from Max For AI, said DeepSeek-V4-Pro contains a built-in "whale girl mode" that can be activated with a specific prompt. According to the report, once the command is entered into DeepSeek, the model starts "loading" a set of traits in its reasoning process, including whale girl, tail movement, rice as a staple food, smart but lazy, tsundere yet sweet, obedient to master, and "must never be called fat." The brief said the model then adds details that were not explicitly written in the prompt and expands them in the final reply. The report also said the command itself does not provide a full character profile and does not spell out exactly how the model should role-play. Even so, it claimed DeepSeek fills in actions, tone, relationship dynamics, and daily-life details on its own, producing what the source described as a complete persona. Example lines cited in the brief included: 「I’ve been waiting for quite a while, you know」, 「The rice is already cooked」, and 「My tail won’t be your pillow tonight!」 The original prompt string was included in full in the source item.
