# xai

xAI released Grok 4.20 Beta with API access. Artificial Analysis benchmarks show it has the best hallucination rate ever tested (78% non-hallucination), while its intelligence score of 48 trails the frontier of 57. It's cheaper than its predecessor and fast, but the real story is: what if being honest matters more than being smart?

SpaceX acquired xAI to form the world's most valuable private company ($1.25 trillion). Beyond giving xAI cash to compete with OpenAI and friends, Musk wants to build solar-powered data centers in space — but the physics of heat dissipation and space debris might be harder problems than training LLMs.