SpaceXAI (formerly xAI) launched its flagship Grok 4.5 model on July 8, 2026, trained on tens of thousands of Nvidia GB300 GPUs and priced at $2 per million input tokens, undercutting Anthropic’s Claude Opus 4.8. The company says the model particularly excels at coding tasks and is being tightly integrated with Cursor, the AI coding startup SpaceX acquired for $60 billion. Access for EU users is delayed until mid-July, pending compliance review under the bloc’s AI Act.
