Introducing Grok 4 Fast, a multimodal reasoning model with a 2M context window that sets a new standard for cost-efficient intelligence. Available for free on https://t.co/AnXpIEOhOD, https://t.co/53pltypvkw, iOS and Android apps, and OpenRouter. https://t.co/3YZ1yVwueV

>50% of the coding market on OpenRouter Join us to improve Grok Code further! https://t.co/qsTbQPqXr8

Grok Code just hit #1 on the OpenRouter leaderboard, beating Claude Sonnet

Introducing Grok Code Fast 1, a speedy and economical reasoning model that excels at agentic coding. Now available for free on GitHub Copilot, Cursor, Cline, Kilo Code, Roo Code, opencode, and Windsurf. https://t.co/3tMbmLbxOP

The start of a new model line - Grok Code series. This time we focus on speed. It’s a very new experience when the model is super fast. Try it out, it’s free for 7 days on the major platforms.

this is so cool! try it on the Grok app

be there tonight! 🚀

Grinding on @Grok all night with the @xAI team. Good progress. Will be called Grok 4. Release just after July 4th. Needs one more big run for a specialized coding model.

Meet the Grok 3 family, now on our API! Grok 3 Mini outperforms reasoning models at 5x lower cost, redefining cost-efficient intelligence. Grok 3, the world's strongest non-reasoning model, excels in tasks that need real world knowledge like law, finance, and healthcare.

We've just released grok studio - it lets you collaborate with Grok on text documents, run code, make browser games. Let me know if you find any issues!

@xAI has acquired @X in an all-stock transaction. The combination values xAI at $80 billion and X at $33 billion ($45B less $12B debt). Since its founding two years ago, xAI has rapidly become one of the leading AI labs in the world, building models and data centers at

Boris, check out our mini model numbers, it surpassed o3mini high in all AIME 2024, GPQA, and LCB for pass@1. Generally I also don’t think our current benchmarks capture enough of the model intelligence. Our big Grok3 is worse on pass@1, but in our testing we can feel a smarter

Yesterday we discovered a bug that caused many people to get answers from Grok 2 instead of Grok 3 even though it said Grok 3 in the app 😬 Please give Grok 3 another chance if you found it to be underwhelming the last time. Now available for free.

It's free now - try the smartest AI!

Grok 3を先ほど公開しました！ 世界最強のモデルとして、推論能力 (Reasoning)、調査能力 (DeepSearch)も兼ね備え、登場です！ @xAIの素晴らしいメンバーと一緒に開発しました！ ぜひお使いください！

People have been wondering which model will be the first to reach a 1400 Elo score; no one believed it would be Grok one year ago, but @xAI made it happen!

Have been post training Grok 3 for a while, with the most hardworking and smartest people @xai ! 🍫🍫 More to come

Let's go!!!!!

going live! 🍫🍫🍫