GPT-4.1 is API only… I wonder if this will stay like this or if it will eventually get added to ChatGPT (I believe the latter)

Sam Altman (@sama) on Twitter says: GPT-4.1 (and -mini and -nano) are now available in the API!  these models are great at coding, instruction following, and long context (1 million tokens).  benchmarks are strong, but we focused on real-world utility, and developers seem very happy.  GPT-4.1 family is API-only.