
Grok 4.3 Explained: Features, Demos & The Settings That Matter
June 5, 2026
In 1999, Ray Kurzweil predicted human-level AI by 2029. Stanford’s top AI experts said 100 years. Three years from the deadline, he says two things are still missing: AI that understands physics, and a robot that knows the difference between what goes in the fridge and what goes in the trash.
– LLMs went from unremarkable to world-changing in 12 months. AI now outperforms human doctors at diagnosis by 50%.
– LLMs have only been truly effective for six months, according to Ray. A year ago, "not really all that impressive."
– The Genome Project was 1% done at the halfway mark. One doubling later — done. We’re at that same moment with AGI.
– Software alone has improved roughly a millionfold over 70 years. Total compute gain = hardware (75,000 trillion fold) × software (million fold).



