The AI Models Index tracks how frequently and effectively new AI models are...

https://emiliosbestinsights.rivetgarden.com/posts/why-do-lmarena-leads-shrink-after-launch-week

The AI Models Index tracks how frequently and effectively new AI models are released, showing there’s a new version about every 4.5 days. While 56% of updates bring improvements, 16% actually cause regressions. On average, models gain +9