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Grok 4.20 Reasoning

Grok 4.20 Reasoning is SpaceXAI's reasoning model in the Grok 4.20 beta generation, supporting extended thinking for complex problem-solving with low hallucination rates and strict prompt adherence.

Input and output price
Prices from: Input $1.25, Output $2.50, Per 1M tokens
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import { streamText } from 'ai'


const result = streamText({
  model: 'spacexai/grok-4.20-reasoning',
  prompt: 'Why is the sky blue?'
})
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