My experience has been Claude is better at all coding/technology questions and exploratory learning. It's also night/day better at less common tech/languages than others (try asking ChatGPT questions about Svelte, for example).
Claude is also vastly better with creative writing (adcopy) and better at avoiding sounding like a LLM wrote it. It's also vastly better at regular writing (helping you draft emails, etc).
We were using OpenAI's Teams for a while. Tried Claude out for a few days - switched the entire company over and haven't looked back.
OpenAI gets all the hype - but there are better products on the market today.