On this day in 2023， Elon Musk officially announced xAI.
A lot has happened since then…
• Jul 12， 2023 - xAI was officially announced with the mission of understanding the true nature of the universe.
• Nov 3， 2023 - Unveiled Grok， its first AI model， trained in only two months and connected to real-time knowledge from X.
• Dec 23， 2024 - Raised another $6 billion through its Series C funding round.
• Jan-Feb 2025 - Launched standalone Grok applications for iOS and Android.
• Feb 2025 - Doubled Colossus to 200，000 GPUs just 92 days after completing the first 100，000-GPU cluster.
• Feb 19， 2025 - Unveiled Grok 3 and Grok 3 mini， trained with roughly 10× more compute， alongside Think and DeepSearch.
• Feb-Mar 2025 - Rolled out Voice Mode and the SuperGrok subscription.
• Mar 17， 2025 - Acquired AI video-generation startup Hotshot.
• Mar 28， 2025 - xAI acquired X in an all-stock transaction， combining data， models， compute， distribution and talent.
• Apr-May 2025 - Released Grok 3 through the API and launched Live Search for real-time information from the web and X.
• Jul 9， 2025 - Launched Grok 4 and Grok 4 Heavy with native tool use， real-time search and reinforcement learning at unprecedented scale.
• Jul 12， 2025 - Brought Grok directly into Tesla vehicles through an over-the-air software update.
• Jul 14， 2025 - Launched xAI for Government.
• Jul-Aug 2025 - Introduced Grok Companions， launched Grok Imagine for rapid image and video generation with sound， and open-released Grok 2.
• Aug 28， 2025 - Launched Grok Code Fast 1 for fast and economical agentic coding.
• Sep 19， 2025 - Launched Grok 4 Fast， delivering Grok 4-class performance with significantly greater token and cost efficiency.
• Sep 25， 2025 - Expanded xAI for Government through the GSA OneGov program.
• Oct 27， 2025 - Launched Grokipedia， an AI-generated knowledge platform powered by Grok.
• Nov 17， 2025 - Launched Grok 4.1， which reached the #1 position on LMArena's Text Arena during its rollout.
• Nov 19， 2025 - Launched Grok 4.1 Fast and the Agent Tools API while announcing a major partnership with Saudi Arabia and HUMAIN.
• Dec 2025 - Partnered with El Salvador on a nationwide AI education program； launched the Grok Voice Agent API， Collections API， Grok Business and Grok Enterprise； and was selected for a major U.S. defense AI program.
• By the end of 2025 - Colossus I and II had surpassed one million H100 GPU equivalents， while X and Grok reached roughly 600 million monthly active users combined.
• Jan 6， 2026 - Raised $20 billion through an upsized Series E funding round.
• Jan 28， 2026 - Launched the Grok Imagine API for image creation， video generation and media editing.
• Feb 2， 2026 - SpaceX acquired xAI， combining artificial intelligence， rockets， satellites， communications and real-time information.
• Mar 10， 2026 - Launched Grok 4.20 and Grok 4.20 Multi-Agent， allowing multiple specialized agents to collaborate on difficult problems.
• Apr 17-30， 2026 - Launched standalone Speech-to-Text and Text-to-Speech APIs， Grok Voice Think Fast 1.0 and Custom Voices.
• May 5， 2026 - Launched Grok 4.3 with a 1M-token context window， configurable reasoning and advanced tool-calling capabilities.
• May 6， 2026 - Launched Grok Connectors and Imagine Quality Mode while announcing a major Colossus computing partnership with Anthropic.
• May 15-21， 2026 - Brought Grok subscriptions to Hermes Agent， OpenClaw and OpenCode， then launched Grok Skills for persistent expertise， workflow automation and document generation.
• May 25， 2026 - Launched Grok Build， an agentic coding CLI capable of planning， searching， editing， testing and building software directly from the terminal.
• May 27-Jun 15， 2026 - Expanded the Grok coding ecosystem with Kilo Code， Grok Build through the API， Composer 2.5， plugins， a marketplace， an Agent Dashboard and Warp integration.
• Jun 3-18， 2026 - Launched Grok Imagine Video 1.5， expanded Grok Voice through Vapi， powered Gopuff's Go and eToro's Tori， and brought Grok to PowerPoint， Word， Excel， Amazon Bedrock and Databricks.
• Jul 1， 2026 - Launched Voice Agent Builder， a no-code platform for deploying production-ready Grok voice agents.
• Jul 8， 2026 - Launched Grok 4.5， SpaceXAI's smartest model yet for coding， agentic tasks and knowledge work-trained alongside Cursor， served at fast-model speeds and built for dramatically greater token efficiency.
• Nov 6， 2023 - Launched PromptIDE for prompt engineering and interpretability research.
• Mar 17， 2024 - Open-released Grok-1's weights and architecture， a 314B-parameter Mixture-of-Experts model.
• Mar 28， 2024 - Announced Grok-1.5 with major reasoning improvements and a 128K-token context window.
• Apr 12， 2024 - Introduced Grok-1.5V， xAI's first multimodal model for understanding images， documents， charts， diagrams and screenshots.
• May 26， 2024 - Raised $6 billion in Series B funding.
• Aug 13， 2024 - Launched Grok-2 and Grok-2 mini， bringing stronger reasoning， coding， vision and image generation to Grok.
• Sep 2024 - Brought Colossus online with 100，000 NVIDIA H100 GPUs， built from start to finish in only 122 days.
• Nov 4， 2024 - Opened the xAI API public beta.
• Dec 9， 2024 - Launched Aurora， xAI's own autoregressive image-generation model.
• Dec 12， 2024 - Made Grok free for everyone on X while adding web search， citations and multilingual improvements.
• Dec 23， 2024 - Raised another $6 billion through its Series C funding round.
• Jan-Feb 2025 - Launched standalone Grok applications for iOS and Android.
• Feb 2025 - Doubled Colossus to 200，000 GPUs just 92 days after completing the first 100，000-GPU cluster.
• Feb 19， 2025 - Unveiled Grok 3 and Grok 3 mini， trained with roughly 10× more compute， alongside Think and DeepSearch.
• Feb-Mar 2025 - Rolled out Voice Mode and the SuperGrok subscription.
• Mar 17， 2025 - Acquired AI video-generation startup Hotshot.
• Mar 28， 2025 - xAI acquired X in an all-stock transaction， combining data， models， compute， distribution and talent.
• Apr-May 2025 - Released Grok 3 through the API and launched Live Search for real-time information from the web and X.
• Jul 9， 2025 - Launched Grok 4 and Grok 4 Heavy with native tool use， real-time search and reinforcement learning at unprecedented scale.
• Jul 12， 2025 - Brought Grok directly into Tesla vehicles through an over-the-air software update.
• Jul 14， 2025 - Launched xAI for Government.
• Jul-Aug 2025 - Introduced Grok Companions， launched Grok Imagine for rapid image and video generation with sound， and open-released Grok 2.
• Aug 28， 2025 - Launched Grok Code Fast 1 for fast and economical agentic coding.
• Sep 19， 2025 - Launched Grok 4 Fast， delivering Grok 4-class performance with significantly greater token and cost efficiency.
• Sep 25， 2025 - Expanded xAI for Government through the GSA OneGov program.
• Oct 27， 2025 - Launched Grokipedia， an AI-generated knowledge platform powered by Grok.
• Nov 17， 2025 - Launched Grok 4.1， which reached the #1 position on LMArena's Text Arena during its rollout.
• Nov 19， 2025 - Launched Grok 4.1 Fast and the Agent Tools API while announcing a major partnership with Saudi Arabia and HUMAIN.
• Dec 2025 - Partnered with El Salvador on a nationwide AI education program； launched the Grok Voice Agent API， Collections API， Grok Business and Grok Enterprise； and was selected for a major U.S. defense AI program.
• By the end of 2025 - Colossus I and II had surpassed one million H100 GPU equivalents， while X and Grok reached roughly 600 million monthly active users combined.
• Jan 6， 2026 - Raised $20 billion through an upsized Series E funding round.
• Jan 28， 2026 - Launched the Grok Imagine API for image creation， video generation and media editing.
• Feb 2， 2026 - SpaceX acquired xAI， combining artificial intelligence， rockets， satellites， communications and real-time information.
• Mar 10， 2026 - Launched Grok 4.20 and Grok 4.20 Multi-Agent， allowing multiple specialized agents to collaborate on difficult problems.
• Apr 17-30， 2026 - Launched standalone Speech-to-Text and Text-to-Speech APIs， Grok Voice Think Fast 1.0 and Custom Voices.
• May 5， 2026 - Launched Grok 4.3 with a 1M-token context window， configurable reasoning and advanced tool-calling capabilities.
• May 6， 2026 - Launched Grok Connectors and Imagine Quality Mode while announcing a major Colossus computing partnership with Anthropic.
• May 15-21， 2026 - Brought Grok subscriptions to Hermes Agent， OpenClaw and OpenCode， then launched Grok Skills for persistent expertise， workflow automation and document generation.
• May 25， 2026 - Launched Grok Build， an agentic coding CLI capable of planning， searching， editing， testing and building software directly from the terminal.
• May 27-Jun 15， 2026 - Expanded the Grok coding ecosystem with Kilo Code， Grok Build through the API， Composer 2.5， plugins， a marketplace， an Agent Dashboard and Warp integration.
• Jun 3-18， 2026 - Launched Grok Imagine Video 1.5， expanded Grok Voice through Vapi， powered Gopuff's Go and eToro's Tori， and brought Grok to PowerPoint， Word， Excel， Amazon Bedrock and Databricks.
• Jul 1， 2026 - Launched Voice Agent Builder， a no-code platform for deploying production-ready Grok voice agents.
• Jul 8， 2026 - Launched Grok 4.5， SpaceXAI's smartest model yet for coding， agentic tasks and knowledge work-trained alongside Cursor， served at fast-model speeds and built for dramatically greater token efficiency.
