Andre Saraiva
133 posts

Andre Saraiva
@andresnds
o1-preview, o1-mini, o1, o3-mini,o4-mini, o3... Reasoning Researcher at OpenAI. Ex-DeepMind.




1/n I’m thrilled to share that our @OpenAI reasoning system scored high enough to achieve gold 🥇🥇 in one of the world’s top programming competitions - the 2025 International Olympiad in Informatics (IOI) - placing first among AI participants! 👨💻👨💻

GPT-5 is here. Rolling out to everyone starting today. openai.com/gpt-5/









19/N A special shoutout to @bminaiev @_lorenzkuhn James Lee @ahelkky @IClaveras and everyone at @OpenAI and also everyone who works on our reasoning models. Finally, thanks to @merettm @markchen90 @MillionInt @gdb @sama for supporting this research


1/N Yesterday in Tokyo we @OpenAI ran a 10‑hour live Humans vs AI exhibition at the AtCoder World Tour Finals Heuristic. We pointed an OpenAI reasoning model at the same brutal problem the finalists tackled—no human help, same rules, same clock. Buckle up. 👇










