How to Try the Mysterious GPT-2 Chatbot

If you are into AI models or chatbots, you may have seen discussions about the mysterious GPT-2 chatbot and its effectiveness. Today’s article will explain what the GPT-2 chatbot is and how you can access it.

What is GPT-2 Chatbot?

In late April 2024, a mysterious AI model called gpt2-chatbot became available on LMSYS, a site for testing and evaluating LLMs .

The excellent results of gpt2-chatbot have rapidly increased its popularity, with many claiming that it can match or even outperform GPT-4. Tweets from OpenAI CEO Sam Altman have only added to the hype.

How to Try the Mysterious GPT-2 Chatbot

Shortly after the chatbot started trending, LMSYS removed it from its website citing traffic limits and high capacity in a post on X. However, it returned almost a week later with two different versions: im-a-good-gpt2-chatbot and im-also-a-good-gpt2-chatbot.

Later, when OpenAI released a new model called GPT-4o , it was revealed that the GPT-2 chatbot was not based on GPT-2 but on GPT-4o.

Is GPT-2 really GPT-4o?

That's right, the mysterious gpt2-chatbot is actually OpenAI's upgraded GPT-4o model, which offers more features than OpenAI's previous GPT models.

On the day GPT-4o was announced, an OpenAI employee revealed that they had tested GPT-4o on LMSYS under the name im-also-a-good-gpt2-chatbot. Sam Altman reposted this on X, confirming the claim.

How to Try the Mysterious GPT-2 Chatbot

You can still access and try out Chatbot GPT-2

How to Try the Mysterious GPT-2 Chatbot
ChatGPT uses the GPT-4o model

Now that GPT-4o is available to ChatGPT users and the GPT-2 chatbot is actually GPT-4o, just go to ChatGPT and use GPT-4o.

However, if you want to experience the trial versions of GPT-4o, the GPT-2 chatbot is still available on LMSYS. To access the GPT-2 chatbot, go to the LMSYS Chat page , select Direct Chat mode , and select im-also-a-good-gpt2-chatbot from the drop-down menu.

How to Try the Mysterious GPT-2 Chatbot
LMSYS Live Chat using GPT-2 chatbot

Is GPT-2 worth using? Or should I just use GPT-4o?

Even before it was revealed as GPT-4o, there was a lot of discussion about how effective the GPT-2 chatbot was. It performed even better than GPT-4, so there was speculation about whether it was GPT-4.5 or even GPT-5. According to X user @itsandrewgao, the GPT-2 chatbot solved the International Mathematical Olympiad question. Another X user created the Flappy Bird game using code generated by GPT-2.

How to Try the Mysterious GPT-2 Chatbot
LMSYS Chatbot Arena Leaderboard

According to OpenAI’s data, GPT-4o outperforms any other AI model in the tests, and OpenAI’s demo also shows that GPT-4o is an improvement over existing models. Similarly, on the LMSYS Chatbot Arena Leaderboard, GPT-4o outperformed GPT-4 Turbo . So the hype around gpt2-chatbot (or GPT-4o) is justified. But since GPT-4o will continue to receive updates and tweaks after its release, it’s better to use GPT-4o over ChatGPT, rather than the older GPT-2 model for testing.

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