As an iOS dev, I certainly wouldn't call it "expert", but it's generally "good enough" to be a starting place whenever I get stuck, and on several occasions has surprised me with a complete bug free solution. Likewise when I ask it for web app stuff, though as that isn't my domain I wouldn't be able to tell you if the answers were "good" or "noob".

For the specific simple multiplication example given previously: https://chatgpt.com/share/6709a090-8934-8011-ae97-139b5758ad...

I do also have custom instructions set, but the critical thing here is the link to the python script, which is linked to at the end of the message, the blue text that reads: [>_]