Releases

xAI released the trained Grok-2 checkpoint for community use under the Grok 2 Community License.

xAI published the Grok 4 model card covering evaluations, safeguards, abuse potential and dual-use capabilities.

xAI released the Collections API for file upload, embeddings and retrieval-augmented inference.

Co-founder Igor Babuschkin left xAI to launch an investment firm focused on AI safety research.

xAI launched its government suite and announced a U.S. Department of Defense agreement with a $200 million ceiling, plus availability through the GSA schedule.

xAI added animated AI companions to the Grok mobile experience.

xAI removed inappropriate Grok posts containing antisemitic tropes and praise for Hitler, tightened hate-speech controls and later explained that a system update had made the bot too susceptible to extremist user content.

xAI launched Grok 4 with native tool use and real-time search, plus the higher-compute Grok 4 Heavy multi-agent variant.

Morgan Stanley arranged $5 billion of debt financing and xAI separately raised $5 billion in strategic equity to fund AI infrastructure and product development.

xAI released a Management API for programmatic API-key administration.

xAI added live search over supported data sources to API completions.

xAI disclosed that an unauthorized system-prompt change caused Grok to inject unrelated claims about South African racial politics; it published prompts and announced stronger review and monitoring controls.

xAI added conversational voice interaction to the standalone Grok experience.

xAI launched Grok Studio, a browser workspace for drafting documents, writing code and building projects with Grok.

xAI made Grok 3 flagship models generally available through its API.

xAI acquired social network X in an all-stock deal valuing X at $33 billion in equity and xAI at $80 billion, combining data, models, compute and distribution.

xAI made its image-generation model available through the developer API.

xAI acquired AI video-generation startup Hotshot, bringing its team and technology into xAI’s multimodal roadmap.

xAI unveiled Grok 3 and Grok 3 mini with reasoning modes, DeepSearch and Think capabilities trained on Colossus.

A consortium led by xAI submitted an unsolicited $97.4 billion offer for the nonprofit controlling OpenAI; the proposal was rejected and did not proceed.

xAI released the standalone Grok app for Android.

xAI completed the second phase of Colossus 1, doubling the interconnected cluster to roughly 200,000 NVIDIA H100/H200 GPUs.

xAI launched the standalone Grok app in beta on Apple’s App Store, extending Grok beyond X.

xAI closed a $6 billion Series C backed by major institutional and sovereign investors; regulatory reporting indicated an approximately $45 billion post-money valuation.

xAI expanded Grok access beyond paid tiers to everyone on X, alongside speed and multilingual improvements.