ChatGPT-4: Focuses on text-based interactions, excelling in understanding and generating text across various contexts and languages.
ChatGPT-4o: Extends capabilities to include audio and images, enabling it to understand and respond to audio inputs, generate image outputs, and combine these with text for a richer interaction experience.
Response Times
ChatGPT-4: Provides fast text generation but does not handle audio or image inputs.
ChatGPT-4o: Responds to text, image, and audio inputs in as little as 232 milliseconds, with an average response time of 320 milliseconds, making interactions more fluid and lifelike.
Performance and Cost Efficiency
ChatGPT-4: High performance in text generation and understanding, but can be resource-intensive.
ChatGPT-4o: Matches GPT-4 Turbo performance on text while being faster and 50% cheaper in the API. Excels in non-English languages and offers superior vision and audio understanding.