GPT-5 Thinking in ChatGPT (a.k.a. Research Goblin) is shockingly good at search(simonw.substack.com)

39 points by klelatti 1 year ago | 38 comments

The surprise deprecation of GPT-4o for ChatGPT consumers(simonwillison.net)

377 points by tosh 1 year ago | 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.

Exploring GPTs: ChatGPT in a trench coat?(simonwillison.net)

455 points by simonw 2 years ago | 196 comments

Simon Willison's blog post exploring OpenAI's custom GPTs feature, how to configure them, and examples of GPTs he built.

AI Mode Is Good(simonwillison.net)

50 points by xnx 1 year ago | 17 comments

OpenAI are quietly adopting skills, now available in ChatGPT and Codex CLI(simonwillison.net)

524 points by simonw 10 months ago | 303 comments

Simon Willison blog post reporting that OpenAI has quietly added Anthropic-style skills support to ChatGPT's Code Interpreter and the Codex CLI.

GPT‑5-Codex and upgrades to Codex(simonwillison.net)

47 points by amrrs 1 year ago | 6 comments

The surprise deprecation of GPT-4o for ChatGPT consumers(simonwillison.net)

377 points by tosh 1 year ago | 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-4.5(openai.com)

1086 points by meetpateltech 1 year ago | 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 for Developers(openai.com)

445 points by 6thbit 1 year ago | 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 7 months ago | 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-5.3-Codex(openai.com)

1442 points by meetpateltech 8 months ago | 567 comments

OpenAI announcement introducing GPT-5.3-Codex, a model expanding Codex across a wider range of professional computer work.

GPT Best Practices(platform.openai.com)

540 points by yla92 3 years ago | 165 comments

OpenAI platform documentation guide outlining six strategies and tactics for getting better results from GPT models through prompting.