Fixed API key length limitation (now supports 255 chars for modern OpenAI keys)
Fixed clipboard functionality
Corrected composer.json typo
Modern AI models: GPT-3.5 Turbo, GPT-4, GPT-4 Turbo
Temperature control for creativity adjustment
Enhanced form validation and error handling
Better security with dedicated service class
User-friendly error messages with logging
Improved UI/UX and documentation
API timeout and input sanitization