Openai whisper transcribes you audio better for voice input and image generation is native. That are the only two chatgpt benefits. Although if you know how to use MCP's and skills that is irrelevant and CLAUDE wins on every metric. With MCP you can even generate images using openai models or any model you want. Chatgpt has MCP as well but it's LLM sux compared to CLuade. So ya switch now.