xAI Ships Grok 4.3 to AWS Bedrock GA and Adds '/goal' Long-Running Autonomous Coding Mode

xAI·medium signal

xAI made Grok 4.3 generally available on Amazon Bedrock with a 1M-token context, configurable reasoning levels, and low-hallucination enterprise positioning, and introduced /goal in Grok Build — a long-running autonomous mode that plans, executes to completion and verification, with pause/resume/clear controls. It also shipped a free Grok add-in for Microsoft Word and Grok Imagine Video 1.5. The Bedrock GA plus an explicit hand-off-the-whole-task agent mode puts Grok directly into the enterprise agentic-coding conversation alongside Claude Code and Codex.