#xAI

AICursor's acquisition by SpaceX has officially closed, and Cursor will join the SpaceXAI team. The stated goal is to help make Grok the world's most useful AI and to improve Grok Build, Grok Bot, Grok API, Cursor, and more.

Why it matters: The acquisition closing ties Cursor's coding tools to Grok's product line, which changes how the two products may be developed and sold together.

AICursor has been acquired by SpaceX, completing a process that began in April when the two companies announced a partnership to accelerate model training. The post says the deal gives Cursor access to what it calls the largest GPU fleet in the world, which it expects to yield more capable models at lower cost. It cites Grok 4.6, released Wednesday, as an early look at what the companies can build together.

Why it matters: The post confirms a completed acquisition and links it to GPU access and cheaper model serving, which explains why the deal matters for coding tools.

AIARC Prize reports that the top Kaggle entry reached 24% on the ARC-AGI-2 private dataset at $0.20 per task, and that all winning solutions and papers are open source. The top verified commercial model, Opus 4.5 (Thinking, 64k), scored 37.6% at $2.20 per task, while a Poetiq refinement on Gemini 3 Pro reached 54% at $30 per task. The author argues that refinement loops are the main driver of 2025 progress, and says ARC-AGI-3 is planned for early 2026.

Why it matters: The post links 2025 competition results to a broader argument about refinement loops, showing how benchmark outcomes are being read as evidence of AI reasoning progress.