The AI Models Index shows that in 2026, new AI releases are coming fast—about...

https://fair-wiki.win/index.php/Is_GPT-5.2_More_Expensive_Than_GPT-5.1%3F_A_Data-Driven_Look_at_AI_Model_Pricing_Trends

The AI Models Index shows that in 2026, new AI releases are coming fast—about every 4.5 days. On average, models improve performance 56% of the time, but 16% of updates cause a regression. Overall, median gains in LMArena benchmarks are +9