xai
3 articles
Grok 4.20 Beta: Lowest Hallucination Rate Ever, But Still Playing Catch-Up on Smarts
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?
Grok 4.20 Is Here: Cheap, Honest, But Still Not Top of the Class
xAI released Grok 4.20 Beta, scoring 48 on the Artificial Analysis Intelligence Index — up 6 points from Grok 4. Pricing dropped significantly ($2/$6 vs $3/$15), and it achieved the lowest hallucination rate ever tested. But overall intelligence still trails the frontier of 57, held by Gemini 3.1 Pro Preview and GPT-5.4.
xAI Blasts Off: SpaceX Acquires xAI, Musk Wants Data Centers in Space
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.