xAI

X expands Grok AI services to iOS, Android, Web, and API

Grok AI services are currently available on iOS, Android, Web, API (US and EU regions), API Console, and through X platform

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xAI Grok Services Available on iOS, Android, Web, and API

Grok AI services now accessible on iOS, Android, Web, and via API in multiple regions (us-east-1 and eu-west-1)

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xAI Launches iOS and Android Apps for Grok

xAI now offers iOS and Android mobile apps for Grok, expanding platform accessibility

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xAI launches new Grok API features: Tool Use, Image Analysis, and Function Calling

xAI has launched new API capabilities including Tool Use, Image Analysis, and Function Calling for Grok AI model

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xAI launches Grok Code Fast 1 — new coding AI with tool integration

Introducing grok-code-fast-1, a fast, economical coding AI built for agentic workflows with tool integration and strong TypeScript, Python, Java, and more. It’s launching with limited-time free access through select partners, transparent pricing, and ongoing updates including multimodal inputs and longer context.

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xAI launches Grok 4 Fast: Cost-efficient reasoning model with 2M context

Grok 4 Fast launches as a cost-efficient, unified reasoning model with 2M token context, real-time web browsing, and native tool use. It’s available now across grok.com apps and API with two variants, offering 40% token efficiency and major price reductions.

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Expanding xAI for Government with GSA OneGov

### Expanding ‘xAI For Government’ with more accessible AI tools for the Federal Government #### Bringing accessible Frontier AI to the entire US Government We’re excited to announce a significant expansion to our ‘xAI For Government’ offering – which we launched earlier this year in partnership with the General Services Administration (GSA). As a part of GSA’s OneGov Initiative, starting today, for the next 18 months, xAI For Government will be available to every federal government department, agency, or bureau, for a cost of just $0.42 for the period. This new initiative brings our latest reasoning models, like Grok 4 and Grok 4 fast, into the hands of the government at an extremely affordable price. xAI is committed to bringing the best tools available to those working hard for our country, and this initiative lets government employees engage, experiment, and harness Frontier AI. xAI is a strong supporter of President Trump’s AI Action Plan and this administration’s initiatives to bring the latest AI tools into the hands of federal government workers. We’re the only lab that has firmly committed to maintaining parity between the models that are available in the commercial space and tools available in regulated government environments. "xAI has the most powerful AI compute and most capable AI models in the world. Thanks to President Trump and his administration, xAI’s frontier AI is now unlocked for every federal agency empowering the U.S. Government to innovate faster and accomplish its mission more effectively than ever before” said xAI cofounder and CEO Elon Musk. “We look forward to continuing to work with President Trump and his team to rapidly deploy AI throughout the government for the benefit of the country.” xAI’s is committed to bring Frontier AI models to the government, but we won’t stop there. For AI to be maximally effective in the government, it needs to be implemented correctly, and the personnel using it need to be trained to use new AI-powered tools. To support this, xAI is committing a dedicated team of ‘Grok Engineers’ to assist and accelerate departments and agencies implementing AI tools. This is a unique offering and xAI is investing heavily not just in making the models accessible, but also in ensuring mission success. “Widespread access to advanced AI models is essential to building the efficient, accountable government that taxpayers deserve — and to fulfilling President Trump’s promise that America will win the global AI race," said Federal Acquisition Service Commissioner Josh Gruenbaum. “We value xAI for partnering with GSA—and dedicating engineers—to accelerate the adoption of Grok to transform government operations.” America is the world leader in AI, and this is in no small part due to a tradition of innovation and strong investments in engineering and science. We’re excited to contribute back to the country that made xAI uniquely possible here. Learn more here or reach out to us directly. We’re also se

xAI releases Grok 4.1 across web, X, iOS, and Android

Grok 4.1 lands across web, X, iOS and Android with sharper personality, better emotional intelligence and reduced hallucinations, plus faster, more reliable responses. A controlled rollout backed by strong preference gains confirms real product update.

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xAI launches Grok 4.1 Fast with Agent Tools API

xAI launches Grok 4.1 Fast with a 2M context window and the Agent Tools API for real-time search, code execution and autonomous tool calling. Built for real‑world enterprise use, the release highlights fast, cost‑efficient agentic AI with sandboxed tooling and OpenRouter trial access.

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xAI: Grok 4.1 Fast models released with reduced agent tool pricing

- You can now use Grok 4.1 Fast models with the agent tools, check out the documentation of agent tools to get started. - The price of agent tools drops by up to 50% to no more than $5 per 1000 successful calls, see the new prices at the pricing page.

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xAI and El Salvador Pioneer the World's First Nationwide AI Education Program

### Announcing Our Transformative Partnership with the Government of El Salvador Today, xAI is thrilled to announce a groundbreaking partnership with the Government of El Salvador to launch the world's first nationwide AI-powered education program. Over the next two years, we'll deploy Grok across more than 5,000 public schools, delivering personalized learning to over one million students and empowering thousands of teachers as collaborative partners in education. This initiative will create adaptive, curriculum-aligned tutoring that adjusts to each student's pace, preferences, and mastery level—ensuring every child, from urban centers to rural communities, receives world-class education tailored to their needs. By co-developing this system with El Salvador, we'll generate new methodologies, datasets, and frameworks to guide responsible AI use in classrooms globally, with a focus on local contexts, safety, and human-centered impact. At xAI, our mission is to advance scientific discovery and deepen our collective understanding of the universe. This partnership embodies that purpose by harnessing Grok's frontier capabilities to accelerate learning at scale, bridging educational gaps, and fostering innovation that benefits humanity. It's a step toward making advanced AI accessible to all, reimagining how nations build knowledge for generations to come. #### As President Nayib Bukele said: > "El Salvador doesn't just wait for the future to happen; we build it. From establishing the global standard in security to now pioneering AI-driven education, El Salvador proves that nations can leapfrog directly to the top through bold policy and strategic vision. With xAI as the leader in frontier models and El Salvador as a testbed for innovation, this partnership is destined to deliver something rather extraordinary for all of humanity." #### As Elon said: > “By partnering with President Bukele to bring Grok to every student in El Salvador, we’re putting the most advanced AI directly in the hands of an entire generation. El Salvador isn’t waiting for the future of education — they’re building it with xAI.” We're genuinely excited to work hand-in-hand with El Salvador to unlock the full potential of AI in education and inspire global change. #### Contact For governments interested in transformative projects, please reach out to global-government@x.ai . Onward.

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xAI: Grok Voice Agent API

Bringing the power of Grok Voice to all developers. Today, we're excited to launch the Grok Voice Agent API, empowering developers to build voice agents that speak dozens of languages, call tools, and search realtime data. The Grok Voice Agent API is built on the same stack that powers Grok Voice for millions in our mobile apps and Tesla vehicles, and we’re thrilled to open up this proven technology to all via the xAI API. Smart and fast Grok Voice Agents are the fastest, most intelligent voice agents available on the market. We built the entire voice stack in-house, training our own voice activity detection (VAD), tokenizer, and audio models from scratch. This fine-grained control over every component of the stack allows us to rapidly iterate and improve Grok’s intelligence and speed. The Grok Voice Agent API ranks #1 on Big Bench Audio, the leading audio reasoning benchmark that measures voice agents’ capabilities to solve complex problems. With an average time-to-first-audio of less than 1 second, Grok is nearly 5 times faster than the closest competitor. ### Pricing The Grok Voice Agent API leads the industry in cost-efficiency. Developers are billed at a simple flat rate of $0.05 per minute of connection time. ### Multilingual fluency Grok Voice Agents can speak dozens of languages with native-level proficiency, accurately capturing nuances in dialects and pronunciations. Grok Voice Agents were trained to automatically respond in the language spoken by the user and can seamlessly switch languages mid-conversation. Developers can also instruct Grok to always respond in a specific language via system prompt. In blind head-to-head human evaluations against the OpenAI Realtime API, Grok is consistently rated as the preferred model across axes such as pronunciation, accent, and prosody. ### Grok Voice in Tesla Tesla was a critical design partner for the Grok Voice Agent API, which now powers Grok in millions of vehicles. Grok feels like a natural extension of your Tesla, thanks to specialized tools that let it access vehicle status, look up directions, and control navigation. Grok uses these tools in tandem to provide a seamless route planning experience. For instance, ask Grok to plan a road trip, and it will search X for recommendations, calculate optimal routes, and add stops, generating a full itinerary in seconds. Grok Voice Agents can perform tasks and look up information in real time. With our API, developers can effortlessly integrate their own custom tools or tap into xAI's powerful real-time search capabilities across X and the web. ### Natural, expressive voices We're excited to offer multiple expressive voices to the Grok Voice Agent API, including Ara, Eve, and Leo. Our voices sound natural in everyday conversations and also excel at pronouncing domain-specific terminology in fields like healthcare, finance, and legal. To enhance realism, developers can even prompt the model to use auditory cues such as [whisper], [

xAI: Grok Collections API

### State-of-the-art RAG system built directly into our API. Today, we're excited to announce Collections API. With Collections, you can upload and search through entire datasets. From PDFs and Excel sheets to entire codebases, you can upload your files into a knowledge base that supports precise and fast search. This allows developers to build RAG applications without the headache of managing indexing and retrieval infrastructure. To help you get started, we're making file indexing and storage free for the first week*, with retrieval priced at a flat rate of $2.50 per 1,000 searches. #### Indexing - Powerful document understanding: We use OCR and layout-aware parsing to extract text while preserving structure such as the layout of a PDF, hierarchy of an Excel table, or the syntax of code. - Smart file management: Easily upload, update, and download files. And when a file changes, our system efficiently reindexes it to ensure your collection is never stale. - Broad format support: Collections supports a wide range of file types. (see full list) #### Retrieval Choose the retrieval method that best fits your use case: - Semantic search: To search using the meaning and intent behind a query. - Keyword search: For precise term matching. - Hybrid search: For the highest accuracy, combine keyword and semantic search. We support both a dedicated reranker model and reciprocal rank fusion. #### Benchmark Results Our Collections API delivers state-of-the-art retrieval performance, matching or outperforming leading models in real-world RAG tasks across finance, legal, and coding domains. These fields are especially challenging due to their long, dense documents. To avoid hallucinations and deliver reliable answers, models must retrieve the exact passages and reason over them accurately. Accuracy* (Higher is better) Task | xAI Grok 4.1 Fast | Google Gemini Pro 3 | OpenAI GPT 5.1 Finance Tabular and numerical questions | 93.0 | 85.9 | 84.7 Legal Complex reasoning over multiple chunks | 73.9 | 74.5 | 71.2 Coding Code understanding and large file systems | 86 | 85 | 81 *Internal source. #### Financial Analysis Extracting tabular and numerical data from files can be challenging with semantic search alone. Hybrid search enables you to accurately retrieve this data from documents such as SEC filings*, allowing the model to precisely reference information. #### Legal Analysis (LegalBench) The LegalBench dataset tests retrieval and reasoning over nuanced legal language and complex cross-references, consisting of 128 challenging question-answer pairs drawn from an extensive corpus of authentic commercial contracts across multiple datasets. #### Codebase (DeepCodeBench) Code understanding is crucial for applications such as code summarization and generation. We use the DeepCodeBench dataset to comprehensively benchmark for this. It features a diverse set of tasks drawn from real-world open-source repositories, API usage, and complex algorithmic probl

xAI: Supporting the US warfighter

xAI is proud to be selected by the US Department of War to deliver Frontier AI xAI selected by the US Department of War to power Enterprise AI and Mission Systems xAI is proud to announce that its suite of Frontier AI systems specially designed for United States Military and National Security users, was selected by the U.S. Department of War (DOW) for Frontier AI use cases as a part of DOW’s GenAI.Mil suite. GenAI.mil will enable 3 million military and civilian employees of the DOW to access xAI technologies at DOW Impact Level 5 (DOW IL5). This new partnership between xAI and the DoW’s Chief Digital and Artificial Intelligence Office (CDAO) brings xAI’s Frontier AI systems, powered by the Grok family of models, to both Enterprise AI and critical mission use cases. xAI for Government is an AI platform designed for Enterprise use cases across federal, state, and local government agencies in the United States. The platform combines access to xAI’s industry-leading AI models, agentic tools, research platform, and API. xAI Government users within the DoW will also have unique access to real-time global insights from the X platform. When made generally available at IL5, xAI for Government can be embedded into the day-to-day workflows of all 3 million military and civilian employees of the DoW, from the Pentagon to the tactical edge. In addition to Enterprise use cases, xAI is bringing the power of Frontier AI and real-time insights directly to the warfighter. Through an ongoing, long-term partnership with the DoW and other mission partners, xAI will make available a family of government-optimized foundation models to support classified operational workloads. These two new partnerships are part of our longstanding support of the United States Government and xAI’s mission to bring the best tools and technologies available in industry to benefit our nation. Learn more here or reach out to us directly. We’re also seeking talented mission driven engineers who want to join the cause. If you’re excited by solving hard problems to empower our nation’s hardest workers, we’d love to hear from you. Reach out to us over email or apply online directly here. We’d love to hear from you. ### About xAI For Government xAI’s mission is to create and propagate AI tools to assist humanity in our quest for understanding and knowledge. Supporting the critical missions of the United States Government is a key part of this mission – bringing the best tools and technologies available in the commercial world to our hard-working public servants. Americans have led the world through all of society’s great technological innovations, and AI will be no exception. xAI is proud to continue this legacy – which is why we are the only company building on this legacy here in the US and turning shovels into tokens entirely inside our United States.

xAI: Introducing Grok Business and Grok Enterprise

# The best assistant in the world is now Enterprise ready. ## Bring Grok to your team with seamless security and speed We're putting Grok in the hands of employees everywhere, with enterprise security and privacy built in from the ground up. Your data stays yours: no training on it, ever. You get the highest rate limits on our strongest models, all in a single platform your team can share. For small-to-medium teams, we offer a self-serve process to use Grok Business. To support larger organizations, we also offer Grok Enterprise which includes everything in Grok Business plus Custom SSO, Directory Sync (SCIM), and more for seamless organizational management. ## Real business outcomes, built together For end-users, Grok Business makes secure AI work feel effortless. You can pull in data from your company's tools like Google Drive and share insights safely with teammates. Links are only accessible by those you share them with. ## Leverage your company knowledge with Grok Grok has the ability to access your company knowledge and tools directly with Apps. Starting with Google Drive, your team is guaranteed: - Permission-awareness by design. Grok respects your existing Google Drive permissions. If a file isn't shared with you in Drive, you won't see it in Grok. - Citations you can trust. Every answer includes citations linking directly to source documents, with quote previews and highlighted relevant sections. Grok can also perform agentic search using our industry-leading Collections API via Projects. This is useful for when Grok needs to use a large document store as a primary source, such as a data room for analyzing legal documentation or building financial models. ## Streamline administration with a single, unified platform Manage your Grok Business team directly in the xAI console for effortless administration. Invite users, manage access controls, and monitor usage, all in one place. ## Scaling up ### Enterprise tier Grok Business is designed to support the smallest businesses to the largest Enterprises. With our Enterprise tier, customers have access to: - Custom Single Sign On (SSO) - Directory Sync (SCIM) - Advanced audit and security controls - and more ## Ultimate privacy with Enterprise Vault Vault enables our most secure Enterprise customers to use grok.com for all business-critical applications. Not only is data encrypted in transit and at rest, but it's encrypted with your keys, under your control, and isolated from all other customers. Vault supports: - Dedicated data plane - Application-level encryption - Customer managed encryption keys (CMEK) Grok Business and Enterprise are available today, with much more coming soon Roll out Grok Business to your organization today through our easy self-serve portal. For our Enterprise and Enterprise Vault tiers, our team is excited to get you onboard. In the coming months our team will be releasing many improvements: - More connections to your company apps to deepen Gr

xAI Raises $20B Series E

### xAI Progress and 2025 Momentum xAI is rapidly accelerating its progress in building advanced AI. xAI completed its upsized Series E funding round, exceeding the $15 billion targeted round size, and raised $20 billion. Investors participating in the round include Valor Equity Partners, Stepstone Group, Fidelity Management & Research Company, Qatar Investment Authority, MGX and Baron Capital Group, amongst other key partners. Strategic investors in the round include NVIDIA and Cisco Investments, who continue to support xAI in rapidly scaling our compute infrastructure and buildout of the largest GPU clusters in the world. 2025 was a year of breakthrough momentum, where the xAI team advanced a multitude of key initiatives including: - Data Centers: xAI continues to expand its decisive compute advantage with the world's largest AI supercomputers at Colossus I and II, ending the year with over one million H100 GPU equivalents. - Grok 4 Series: our frontier language models are built on the best-in-class training infrastructure powered by Colossus. xAI has pushed reinforcement learning training to unprecedented levels, refining Grok’s intelligence, reasoning, and agency using pretraining-scale compute. - Grok Voice: the most intelligent voice agent driving real-time conversations in voice mode and available via agent API. Grok Voice delivers low-latency speech in dozens of languages, tool calling, and real-time data access, serving millions of users across the Grok mobile app and in Tesla vehicles. - User metrics: our reach spans approximately 600 million monthly active users across the 𝕏 and Grok apps. - Grok Imagine: our lightning-fast image and video generation models that brings state-of-the-art multimodal understanding, editing, and generation capabilities. - Grok on 𝕏: leveraging the 𝕏 platform to understand what's happening in the world in real-time, utilizing xAI’s most powerful model to date. Looking ahead, Grok 5 is currently in training, and we are focused on launching innovative new consumer and enterprise products that harness the power of Grok, Colossus, and 𝕏 to transform how we live, work, and play. This financing will accelerate our world-leading infrastructure buildout, enable the rapid development and deployment of transformative AI products reaching billions of users, and fuel groundbreaking research advancing xAI's core mission: Understanding the Universe. xAI is hiring aggressively and seeks mission-oriented individuals ready to join a small team focused on making a transformational impact on the future of humanity. Those interested can apply today at x.ai/careers.

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