First screen, captured .
Looks similar
GPT-4.5(openai.com)
1086 points by meetpateltech | 920 comments
OpenAI's announcement of GPT-4.5, a research preview of its strongest GPT model, available to ChatGPT Pro users and API developers.
GPT-4.1 in the API(openai.com)
659 points by maheshrijal | 484 comments
OpenAI announcement introducing the GPT-4.1 model series in the API, with improvements in coding, instruction following, long context, and a new nano model.
GPT-5(openai.com)
1994 points by rd | 2372 comments
OpenAI's launch page announcing GPT-5, described as its smartest, fastest model with built-in thinking, available to everyone in ChatGPT.
OpenAI o1 system card(openai.com)
395 points by meetpateltech | 287 comments
OpenAI's system card for o1 and o1-mini describing safety work, external red teaming, and frontier risk evaluations under its Preparedness Framework.
GPT-5.5(openai.com)
1518 points by rd | 1014 comments
OpenAI's product announcement page introducing GPT-5.5, billed as a new class of intelligence for real work, dated April 23, 2026.
Related stories
GPT-4.5(openai.com)
1086 points by meetpateltech | 920 comments
OpenAI's announcement of GPT-4.5, a research preview of its strongest GPT model, available to ChatGPT Pro users and API developers.
GPT-4o(openai.com)
3006 points by Lealen | 2218 comments
OpenAI's announcement of GPT-4o, its new flagship model that reasons across audio, vision, and text in real time.
GPT-5(openai.com)
1994 points by rd | 2372 comments
OpenAI's launch page announcing GPT-5, described as its smartest, fastest model with built-in thinking, available to everyone in ChatGPT.
GPT-5 for Developers(openai.com)
445 points by 6thbit | 251 comments
OpenAI's announcement of GPT-5 for developers via its API, pitched as its best model for coding and agentic tasks.
GPT-5.6(openai.com)
1499 points by logickkk1 | 1055 comments
OpenAI's product release announcement for GPT-5.6, a frontier model touted for better performance per dollar and on-demand capability for hard tasks.
GPT-4.1 in the API(openai.com)
659 points by maheshrijal | 484 comments
OpenAI announcement introducing the GPT-4.1 model series in the API, with improvements in coding, instruction following, long context, and a new nano model.