ElevenLabs has introduced enhancements to its API key management system, allowing users to set character usage limits on API keys to prevent unexpected charges and providing workspace API keys with the same permission controls as user API keys. The interface for managing API keys has been updated from modals to dedicated pages, with added descriptions and details for better user experience. Users can create and update API keys by accessing their profile picture and selecting "API Keys" or navigating directly to the designated page. These improvements aim to offer better control and visibility for developers working with ElevenLabs' AI audio capabilities.