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OpenAI logoo3

OpenAI

xAI logoGrok 4

xAI

VendorOpenAIxAI
Familyo-seriesGrok
Release date2025-04-162025-07-09
Context window200,000 tokens256,000 tokens
Parameters——
Modalitytext, visiontext
Licenseproprietaryproprietary
Sourceproprietaryproprietary
DescriptionReasoning-focused model in the o-series.—
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