Grok 4.3
Grok 4.3 is a SpaceXAI reasoning model with an improved architecture and a December 2025 knowledge cutoff, matching the scale of Grok 4.20 within a context window of 1M tokens. Your use is subject to SpaceXAI's Terms & Privacy Policies.
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import { streamText } from 'ai'
const result = streamText({ model: 'spacexai/grok-4.3', prompt: 'Why is the sky blue?'})Copy link to headingProviders
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