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Evolving OpenAI's Structure(openai.com)
590 points by rohitpaulk | 633 comments
OpenAI company announcement from May 5, 2025 describing changes to its corporate structure.
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-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-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.
Related stories
The surprise deprecation of GPT-4o for ChatGPT consumers(simonwillison.net)
377 points by tosh | 365 comments
Simon Willison blog post on OpenAI retiring GPT-4o and other older models in ChatGPT consumer apps without notice when GPT-5 launched.
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‑5.3 Instant(openai.com)
365 points by meetpateltech | 284 comments
OpenAI announcement of GPT-5.3 Instant, an update to ChatGPT's most-used model aimed at smoother, more useful everyday conversations.
GPT-4 API General Availability(openai.com)
695 points by mfiguiere | 479 comments
OpenAI blog post announcing general availability of the GPT-4 API and the deprecation of older models in the Completions API.
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.










