GPT-4 (March 2023 release)
Closed
OpenAI announced GPT-4 on March 14, 2023, with capped ChatGPT Plus access and gradual text-API invitations. Image input was still limited research/partner access. This entry describes that named launch, not a permanent API alias or the paper’s pretrained benchmark checkpoint.
Benchmark scores
Access
Historical launch record: text API invitations began March 14, 2023 through a waitlist; ChatGPT Plus access had usage caps. Image input was not publicly available at that launch. Exact current access and retirement status, and the ChatGPT checkpoint’s equivalence to any API pin, remain unqualified.