Grok 4.3 is xAI's April 2026 consumer flagship—a personality-forward assistant with live context and multimodal input. Our tests show strong helpfulness for quick research, brainstorming, and casual problem-solving, with empathy that feels more like a sharp friend than a corporate bot. Instruction following is solid for everyday asks. Creative writing is punchy in short form but our tests find it drifts on long pieces compared with Claude. Best when you want a lively, up-to-date chat partner; less ideal as your only long-form writing assistant.