SpaceXAI on Wednesday launched the Grok 4.5 AI model, calling it the company's most intelligent offering to date designed ‌for coding and agentic tasks. Here are some details: • SpaceXAI said Grok 4.5 ‌was trained across tens of thousands of Nvidia GB300 graphics processing units, with a focus ​on meticulous data filtering, deduplication and quality scoring. "We've partnered with SpaceXAI to train Grok 4.5," popular AI coding agent Cursor said.