xAI Unveils Grok 4.3, Coding Agent, and Expanded Integrations in May Updates

xAI, Elon Musk's artificial intelligence venture, has delivered a robust set of enhancements and new features for its Grok AI throughout May 2026, aiming to solidify its position in the competitive AI landscape. Among the most notable releases is Grok 4.3, which launched on May 4th. This updated frontier model is touted as a smarter and more cost-efficient option, boasting a substantial 1-million-token context window and the ability to process native video input. According to xAI, Grok 4.3 achieved a score of 53 on the Intelligence Index, surpassing the median of 35 across other models, and demonstrated a gain of over 300 Elo points on GDPval-AA compared to its predecessor, Grok 4.20. The pricing for Grok 4.3 is set at $1.25 per million input tokens, making it an attractive choice for developers seeking high performance without prohibitive costs. Another significant introduction is Grok Build 0.1, xAI's inaugural AI coding agent designed for professional software engineering and complex coding tasks. This tool is currently in early beta and accessible to SuperGrok Heavy subscribers. Grok Build functions as an agentic command-line interface, allowing developers to generate code and automate programming workflows using natural language. It supports a 'plan mode' where users can review and approve execution plans before they are carried out, and is designed to integrate seamlessly with existing plugins and workflows. xAI also unveiled Grok Skills, a feature that enables Grok to maintain persistent expertise across different conversations. This means the AI can retain learned information and context, offering a more consistent and personalized user experience over time. In a move to broaden its ecosystem, Grok has integrated with OpenClaw, an open-source AI agent platform. This integration allows Grok and X Premium subscribers to authenticate directly within OpenClaw, gaining access to chat, image generation, and video generation capabilities without needing a separate xAI account or API key. This positions Grok alongside other leading models within a platform favored by developers for building autonomous agents. Furthermore, xAI has expanded Grok's utility by adding new third-party connectors. Users can now perform tasks such as building and deploying sites via Vercel, creating designs in Canva, assembling presentations in Gamma, and accessing live market data from S&P Global, all directly within the Grok platform. These additions underscore xAI's strategy to transform Grok into a comprehensive productivity hub rather than just a standalone chatbot.