Interestingly, the record for OpenAI's application (for "GPT") has a note under "Goods and Services" that reads: "FIRST USE: 20181000. FIRST USE IN COMMERCE: 20

Interestingly, the record for OpenAI's application (for "GPT") has a note under "Goods and Services" that reads: "FIRST USE: 20181000. FIRST USE IN COMMERCE: 20181000" [1] The paper "Improving Language Understanding by Generative Pre-Training" appears to have been released on June 11, 2018. [2] 1: It looks like I can't link directly to it, but it should be pretty easy to find by searching for "GPT" at the parent's link 2: https://openai.com/research/language-unsupervised https://openai.com/research/language-unsupervised