Plugins and add-ons
Things that extend an AI product from the inside - Custom GPTs, Claude Skills and connectors, GitHub Copilot extensions. Different from an extension, which adds AI to a host app that did not have it.
Claude Skills and connectors
How Claude extends a conversation with packaged capabilities and live connections to services such as Google Drive and Slack. Configure them once and…
Tested on Claude Sonnet · Jun 2026
Custom GPTs
The ChatGPT way to package instructions, uploaded files and actions into a named assistant that you or your team open directly, with no API…
Tested on GPT-5 · Jun 2026