> Someone telling you that they did something cool with ChatGPT probably means GPT 3.
The confusion is that ChatGPT is using GPT-3.5 by default, but if you pay the $20/month subscription price, you can switch it over to GPT-4 (with query limits). Usually, when someone is telling you they did something really cool with ChatGPT, they're actually using GPT-4.
An extra layer of confusion is the API access: GPT-3.5-turbo and GPT-4 models are both optimized to be used in chat, which is somewhat different than earlier text completion models. Because of it, people using GPT-3.5 or GPT-4 via API access (possibly with one of the "alternative ChatGPT frontends"), will often also say they're using "ChatGPT". This is almost, but not completely accurate - the actual ChatGPT contains a bunch of hidden "features" (hidden prompt, extra moderation), that are mostly detrimental to the output/experience you get.
Correcting the correction of a correction: The chat interface is no longer using GPT-3.5, since May 3rd. What is the default model called? I have no idea. The release notes page [1] calls it ChatGPT model, the bottom of chat interface calls it "ChatGPT May 3 version".
Also people usually call out when they use GPT-4, but in the end you can only assume and be wrong 50% of time.
The confusion is that ChatGPT is using GPT-3.5 by default, but if you pay the $20/month subscription price, you can switch it over to GPT-4 (with query limits). Usually, when someone is telling you they did something really cool with ChatGPT, they're actually using GPT-4.
An extra layer of confusion is the API access: GPT-3.5-turbo and GPT-4 models are both optimized to be used in chat, which is somewhat different than earlier text completion models. Because of it, people using GPT-3.5 or GPT-4 via API access (possibly with one of the "alternative ChatGPT frontends"), will often also say they're using "ChatGPT". This is almost, but not completely accurate - the actual ChatGPT contains a bunch of hidden "features" (hidden prompt, extra moderation), that are mostly detrimental to the output/experience you get.