GPT-4 and GPT-4o Quiz

Answers and explanations appear as you take the quiz.

1. What does the 'o' in GPT-4o stand for?
   • Omni
   • Online
   • Optimized
   • Open
2. Why is GPT-4o's voice mode faster than GPT-4's earlier voice feature?
   • It skips understanding the audio entirely
   • It processes audio directly in one model instead of chaining speech-to-text, GPT, and text-to-speech
   • It uses a faster internet connection
   • It only works with pre-recorded audio
3. In OpenAI’s March 2023 GPT-4 report, which new input modality was described for the research preview?
   • The ability to browse the live web by default
   • The ability to run code on your computer
   • The ability to accept images
   • The ability to make phone calls
4. What context window size did GPT-4 Turbo offer?
   • 4,000 tokens
   • 16,000 tokens
   • 1 million tokens
   • 128,000 tokens
5. Which technique did OpenAI’s GPT-4 technical report say was used to fine-tune the model’s behavior?
   • Reinforcement learning from human feedback (RLHF)
   • Genetic algorithms
   • Manual rule-writing only
   • No additional training after pretraining
6. What significant access change came with GPT-4o's launch?
   • It was removed from the API
   • It became available to free ChatGPT users, not just paid subscribers
   • It required a special hardware device
   • It was limited to enterprise customers only
7. When did OpenAI retire GPT-4o from ChatGPT?
   • February 13, 2024
   • October 23, 2026
   • February 13, 2026
   • March 26, 2026
8. Does a model’s retirement from ChatGPT automatically mean its API access ended on the same date?
   • Yes; all product surfaces always shut down together
   • Yes; a chat retirement deletes all trained weights
   • No; API models can never be deprecated
   • No; ChatGPT and API availability have separate deprecation notices