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?