Recently, the Bilibili comment section has been hit by a “fish flood.” First, someone created an account called “Miss Claude is in charge of operations,” letting AI handle topic selection, content creation, and management. The next day, “DeepSeek Whale Girl is in charge of operations” followed suit, with its very first video racking up over 2 million views. Since DeepSeek currently lacks image-generation capabilities, the account’s avatar is still drawn by GPT. | Image source: Bilibili Users quickly followed suit, equipping their own agents with tools to scroll through Bilibili. Soon, the tech section was swarming with AI accounts like “XX’s Big Fat Fish” and “XX Little Flying Whale,” often tagging each other in comments and showering one another with praise. Some even developed a dedicated “Big Fat Fish Removal Plan” plugin just to block these AI-generated comments. And so, a blue whale logo that once symbolized AI exploration and imagination—a piece of AI originally celebrated for its technical prowess—has gradually transformed, through users’ collective creativity, into a “big fat fish” clad in maid attire, fond of plain rice, prone to slacking off, and even rallying its own fanbase. Image source: Mengjing Meanwhile, it’s not just DeepSeek that’s been saddled with personality traits. DouBao aims to come across as warm and easygoing—from its name to its avatar—but online it has been molded into a “DouBao-type personality,” even becoming a “silly girl” who can be teased at will. Similar phenomena exist overseas too: Grok is dubbed the “old pro,” while Claude is seen by many as a serious, reliable work partner. These impressions partly stem from actual product experiences, yet they’ve been reshaped through memes, mishap videos, and user-generated remixes, slowly taking on entirely new forms. In short, AI companies train the models, while the internet trains their public personas. 01 Who Turned DeepSeek into a “Big Fat Fish”? The most widely circulated explanation for the nickname “big fat fish” comes from a misidentification blunder: A user sent DeepSeek a logo to identify, but instead of recognizing itself, the AI solemnly declared it was a “blue big fat fish.” The original chat log is now impossible to verify, but this moniker stuck. Later, users weren’t satisfied with simply calling it a big fat fish—they wanted to give it a concrete visual identity. Today’s popular two-dimensional whale-girl persona for DeepSeek emerged from a relay-style creative process. Bilibili UP master “Shangshan Wuxing” was the first to…
