Very proud of us xAI after seeing the GPT5 release. With a much smaller team, we are ahead in many. Grok4 world’s first unified model, and crushing GPT5 in benchmarks like ARC-AGI. OpenAI is a very respectful competitor and still the leader in many, but we’re fast and

A small team of 10x engineers can outpace big players. We're hungry and mission-driven.

the last 1 year was probably the most crazy year in my life, and we are just getting started.

Great work done by Hongyuan Mei Yiwen Yuan and the AI expert team to improve the PDF processing capability dramatically! Let us know any feedback!

From first research prototype to production release — thrilled to have delivered this new Grok capability! Kudos to our small but talented team! Yiwen Yuan Dengfeng Li Shun Keiran Paster

More improvements coming soon!

x.com/i/article/1954…

You asked for it! Grok4 for free.

We will continue to accelerate.

We tested top foundation models on the International Olympiad in Informatics (IOI) - a programming competition that tests algorithmic thinking and C++ coding skills. We found xAI's Grok 4 to be the clear SOTA winner, scoring first place on both 2024 and 2025 exams. 🥇📊👏

Grok wins hands-down at coding. It wasn’t close.

It’s now fixed. Let us know if you have further issues with rate limits.

GrokによるXの投稿の自動翻訳機能を、米国の全ユーザー向けにリリースしました！ 日本語だけでなく、世界各地の言語が@Grokにより英語に自動翻訳されます。 Xの投稿が言語の壁を越えます。 ぜひお楽しみください！

Grok is leading the industry standard.

we’re on the board! x.ai/safety

Join @xAI and help build a purely AI software company called Macrohard. It’s a tongue-in-cheek name, but the project is very real! In principle, given that software companies like Microsoft do not themselves manufacture any physical hardware, it should be possible to simulate