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Introducing Grok 4.5

AnnouncementModelJul 8, 2026

SpaceXAI launched Grok 4.5, a model trained on tens of thousands of NVIDIA GB300 GPUs alongside Cursor. Grok 4.5 is priced at $2 per million input tokens and $6 per million output tokens, with roughly twice the token efficiency of comparable leading models. It is available now in Grok Build, Cursor, and the SpaceXAI console, though EU availability is expected in mid-July. Free usage is offered for a limited time.

Evidence

3sources· 2 independent confirmations

No score is assigned. Sources and their independence are shown in the citation chain below.

Citation chain · 3 sources

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NVIDIACompanyCursorCompanySpaceXAICompanyGrok 4.5ModelGB300Model
Canonical: https://x.ai/news/grok-4-5