Questions tagged [gpt]

For questions related to GPT (which stands for Generative Pre-Training), which is a combination of transformers (proposed in "Attention is All You Need") and unsupervised pre-training for solving language tasks, such as machine translation. GPT was proposed in "Improving Language Understanding by Generative Pre-Training" (2018) by Open AI. There's also GPT-2, which was proposed in "Language Models are Unsupervised Multitask Learners" (2019) by Open AI.

Filter by
Sorted by
Tagged with
23 votes
1 answer
29k views

How does the (decoder-only) transformer architecture work?

How does the (decoder-only) transformer architecture work which is used in impressive models such as GPT-4?
Robin van Hoorn's user avatar
29 votes
4 answers
36k views

Why is ChatGPT bad at math?

As opposed to How does ChatGPT know math?, I've been seeing some things floating around the Twitterverse about how ChatGPT can actually be very bad at math. For instance, I asked it "If it takes ...
Mithical's user avatar
  • 2,905
36 votes
1 answer
39k views

What is the "temperature" in the GPT models?

What does the temperature parameter mean when talking about the GPT models? I know that a higher temperature value means more randomness, but I want to know how randomness is introduced. Does ...
Tom Dörr's user avatar
  • 483
5 votes
2 answers
2k views

Is the Mask Needed for Masked Self-Attention During Inference with GPT-2

My understanding is that masked self-attention is necessary during training of GPT-2, as otherwise it would be able to directly see the correct next output at each iteration. My question is whether ...
D_s's user avatar
  • 51
20 votes
2 answers
13k views

Why does GPT-2 Exclude the Transformer Encoder?

After looking into transformers, BERT, and GPT-2, from what I understand, GPT-2 essentially uses only the decoder part of the original transformer architecture and uses masked self-attention that can ...
Athena Wisdom's user avatar