I have no idea why I’m about to defend OpenAI here. BUT OpenAI have released some open weight models like gpt-oss and whisper. But sure open weight not open source. And yeah I really don’t like OpenAI as a company to be clear.

They have but it does feel like they are developing a closed platform aka Apple.

Apple has shortcuts, but they haven’t propped it up like a standard that other people can use.

To contrast this is something you can use even if you have nothing to do with Claude, and your tools created will be compatible with the wider ecosystem.