Enigmatic AI chatbot vanishes without a trace, leaving users puzzled
A mouth-watering new AI conversationalist called "gpt2-chatbot" stole the show this week, popping up on a popular large language model platform, LMSYS Org. Surrounded by mystery, many consider it to be on par with OpenAI's GPT-4 powerhouse, placing it in an exclusive club of AI models accessible to just a handful of developers worldwide.
Ethan Mollick, a sharp-minded professor researching AI at the Wharton School of the University of Pennsylvania, hinted at this in a tweet on Monday, stating, "No one knows who made it or what it is, but I've been tinkering with it, and it seems to match the abilities of GPT-4."
As the chatter about gpt2-chatbot grew increasingly loud, the conversationalist vanished on Tuesday afternoon, with a notice on LMSYS's homepage reading, "gpt2-chatbot is currently unavailable." A tweet from the organization confirmed the unexpected disappearance was due to "unprecedented traffic." However, LMSYS promised to keep us in the loop for its wider releases.
Thanks for the incredible enthusiasm from our community! We really didn't see this coming.
Just a couple of things to clear up:
- In line with our policy, we've worked with several model developers in the past to offer community access to unreleased models/checkpoints (e.g.,…— lmarena.ai (formerly lmsys.org) (@lmarena_ai) April 30, 2024
A whirlwind of excitement accompanied this cloak-and-dagger AI. Some users claim gpt2-chatbot nearly nailed a perfect clone of the mobile game Flappy Bird, while others boast it solved an International Math Olympiad problem with ease. Speculative outbreaks broke out across online AI communities, with users theorizing over the origins of gpt2-chatbot, discussing the possibility of ties to OpenAI, Google, or Anthropic. Despite the buzz, there's no solid evidence supporting these rumors, but tweets from OpenAI CEO Sam Altman and other execs have only fanned the flames.
You could take a spin with the gpt2-chatbot yourself at LMSYS Org's website. It was available for one-on-one chat or showdown fights in the Arena under the dropdown menu. According to LMSYS's policy blog, certain AI developers have the opportunity to test anonymous unreleased models before a broader release, leading many to believe that gpt2-chatbot could be an early model from a major AI player.
i do have a soft spot for gpt2— Sam Altman (@sama) April 30, 2024
In response to a flurry of speculation, LMSYS Org clarified via a tweet, "To be clear, in accordance with our policy, we've partnered with several model developers to bring their new models to our platform for community preview testing. These models are intended for testing only and will not be listed on the leaderboard until they are made public."
OpenAI and LMSYS Org did not respond promptly to Gizmodo's request for comment.
when gpt-2— Steven Heidel (@stevenheidel) April 30, 2024
In our limited testing, we discovered the gpt2-chatbot shares similar capabilities with leading AI models from Anthropic and OpenAI. The bot demonstrated the hallmarks of advanced large language models, demonstrating an ability to reason well and outline detailed strategies for complex tasks. Below are some examples comparing gpt2-chatbot (left) and Anthropic's Claude Opus model (right).
A computer engineering professor at the University of Wisconsin found that the gpt2-chatbot could perform a task other leading AI models weren't capable of. The professor, Dimitris Papailiopoulos, presented the bot with a riddle involving inexplicit rules that typically leave AI models stumped.
As of now, the details surrounding the gpt2-chatbot remain scarce. However, it's clear that a heavyweight is backing this AI model. In the coming weeks, we'll likely learn more about its creator and potential connections to the AI world at large. This could pave the way for a new AI model or introduce a fresh face to the AI scene.
- The newly introduced AI conversationalist, gpt2-chatbot, is being compared to the powerful OpenAI's GPT-4, implying its potential prowess in the world of artificial intelligence.
- The mysterious origins of gpt2-chatbot have led to numerous discussions across online AI communities, with rumors suggesting possible ties to big names like OpenAI, Google, or Anthropic.
- Despite the lack of solid evidence, the CEO of OpenAI, Sam Altman, and other executives have indirectly fueled these rumors with cryptic tweets.
- The gpt2-chatbot, though created anonymously, has demonstrated abilities similar to leading AI models from Anthropic and OpenAI, showcasing advanced language understanding and problem-solving capabilities.

