Grok
xAI's flagship assistant — real-time X data, web search, voice, and a developer API
About
Grok is xAI's general-purpose AI assistant, available on grok.com, embedded directly in X (formerly Twitter), and via the developer API at api.x.ai. The differentiator that matters most for buyers: Grok queries X and the open web in real time, so it answers questions about events from minutes ago — not whatever its training cutoff was. Grok-4 ships with reasoning, image generation, and a vision pipeline; the recently-launched Grok Voice API adds low-latency speech in / speech out so teams can build voice agents on the same model that powers Grok consumer features. Pricing on the API is competitive with OpenAI's frontier tier, and the Premium subscription on X bundles consumer-grade Grok access for £8/month — useful for teams already paying for X. Grok's house style is more direct than ChatGPT or Claude, which suits some workflows and grates against others; pilot before standardising on it.
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