CogVideo and CogVideoX Quiz

Answers and explanations appear as you take the quiz.

1. What did the CogVideo project’s 2022 paper introduce?
   • A large-scale text-to-video generation model using an autoregressive approach
   • A language-only model for document translation
   • A speech recognizer that outputs video
   • A static-image classifier with no video generation
2. What does CogVideoX's 3D causal VAE accomplish?
   • It adds a soundtrack
   • It compresses video in space and time into a compact latent
   • It translates prompts into code
   • It removes all motion
3. How does the Expert Transformer in CogVideoX handle text and video?
   • It ignores the text entirely
   • It processes them in completely separate models that never interact
   • It concatenates text and visual tokens so they attend to each other
   • It only uses text
4. Which group developed CogVideo and CogVideoX?
   • OpenAI
   • Stability AI
   • Microsoft Research
   • Tsinghua University and Zhipu AI
5. Which additional generation mode does the CogVideo project document for CogVideoX?
   • Image-to-video
   • Audio-to-video only
   • Video continuation for every checkpoint
   • Real-time live-stream editing
6. What should developers check before using released CogVideoX weights or code?
   • Whether all model variants share identical permissions
   • The license and permitted uses for the specific model release
   • Whether the project guarantees commercial rights for every output
   • Whether open code removes the need to check model terms
7. What does causal processing in CogVideoX’s video autoencoder mean at a high level?
   • The model can only generate silent video
   • Every frame is encoded with the same fixed vector
   • A frame’s representation is formed without using future frames
   • The model cannot use temporal information
8. What license does the CogVideo repository list for the CogVideoX-2B model and its corresponding modules?
   • A single universal license for every CogVideoX checkpoint
   • No license of any kind
   • A prohibition on all research use
   • Apache 2.0