The AI Models Index shows that in 2026, new AI models are being released...

https://xeon-wiki.win/index.php/Why_Does_GPT-5.2_Cost_More_Than_GPT-5.1%3F

The AI Models Index shows that in 2026, new AI models are being released roughly every 4.5 days. While 56% of these updates improve performance, 16% actually cause regressions. Overall, the median gain on LMArena benchmarks is +9