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.
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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-5.1: A smarter, more conversational ChatGPT(openai.com)
511 points by tedsanders | 649 comments
OpenAI's announcement of GPT-5.1, an upgrade to GPT-5 in ChatGPT with improved conversation and customization, rolling out first to paid users.
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 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.
ChatGPT agent: bridging research and action(openai.com)
650 points by Topfi | 445 comments
OpenAI's July 2025 announcement of ChatGPT agent, which uses its own computer and agentic tools to research and complete tasks for users.