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OpenClaw Adds Grok 4.3 and Hardens Infrastructure for Reliable Self-Hosted Agents

OpenClaw, an open-source self-hosted AI assistant, released version 2026.5.2 with support for xAI Grok 4.3. This update makes Grok 4.3 the default model for the platform's xAI catalog. It also introduces an npm-first cutover for the ClawHub plugin marketplace, making repair flows and dependency reporting more resilient.

This release shifts the platform toward production-grade stability by optimizing "hot paths" for the gateway and agent. These leaner execution paths improve startup times, addressing performance bottlenecks in OpenClaw's agentic workflows. Hardened Discord and Slack integrations ensure that multi-step agent interactions remain active even across gateway restarts.

You can deploy the update to access improved voice call routing and better error surfacing for OpenAI-compatible Realtime services. The release also adds a new openclaw proxy validate command to verify network configurations. OpenClaw remains a self-hosted project, allowing you to run frontier models like Grok 4.3 on your own hardware.

View the full update on github.com
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OpenClaw 2026.5.2 🦞 🧠 xAI Grok 4.3 🔌 Plugin installs/updates are sturdier ⚡ Gateway + agent hot paths are leaner 💬 Discord, Slack, Telegram, WhatsApp fixes 🎙️ TTS, Realtime, web search, voice-call polish Less drama. More uptime. https://t.co/ImwxFzaO9X

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Still wondering? A few quick answers below.

Grok 4.3 is the latest frontier model from xAI, now integrated as the default chat model in OpenClaw's bundled xAI catalog. Users can access this model through the xAI Responses API, which supports agentic performance and web search capabilities. This update ensures that self-hosted OpenClaw instances stay aligned with the most recent xAI model releases.

OpenClaw has transitioned to an npm-first architecture for external plugin installations and updates. This change makes the system more resilient by using standard package management for dependencies. It includes a doctor repair feature that can automatically fix missing plugin payloads or stale configurations, ensuring that the self-hosted assistant remains stable and easy to maintain over time.

This release introduces leaner hot paths for the gateway and agent runtimes, specifically optimizing startup, session listing, and prompt preparation. By reducing repeated CPU work and memory usage during dispatch, the update minimizes latency for channel replies. These optimizations are designed to keep the system responsive even when managing large session stores or complex multi-agent task registries.

The update includes significant fixes for Telegram, Discord, and Slack to improve uptime. For example, Discord interactions like buttons and forms now remain active across gateway restarts. Telegram forum topics receive better command handling and session file management, while Slack conversations can continue automatically after a reboot by tracking bot-participated threads more effectively in the background.

Yes, OpenClaw is an open-source project available for download on GitHub. Version 2026.5.2 can be installed on various operating systems, including macOS, Linux, and Windows, or deployed via Docker. Users can update their existing installations using the openclaw update command to access the new Grok 4.3 support and the hardened plugin infrastructure immediately.

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