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Grok has grown from a chatbot into a full AI platform - SuperGrok tiers, 2M context, Imagine video, Aurora images, DeepSearch, and the Grok 4.20 beta. We review the entire ecosystem to see if xAI's ambition matches its execution.
Perplexity has evolved from an AI search experiment into a $9B company processing 500 million queries per month. We tested Pro, the API, and the new Sonar models to see if it truly beats Google at search.
xAI's Grok 4.20 beta1 takes the top spot on LMArena's Search Arena with an ELO of 1226, beating GPT-5.2 and Gemini 3. It also lands fourth on the Text Arena at 1492, within striking distance of Claude Opus 4.6.
Head-to-head comparison of Perplexity and ChatGPT in 2026 - pricing, accuracy, features, and which one to use for search, research, coding, and creative work.
Compare the best AI-powered search engines of 2026: Perplexity AI, Google AI Overviews, Bing Copilot, You.com, Phind, and Kagi. How AI search differs from traditional search.
