The AI Models Index tracks model releases, verified public release dates, and...

https://spark-wiki.win/index.php/What_Benchmark_Did_OpenAI_Highlight_for_GPT-5.2_at_Launch%3F

The AI Models Index tracks model releases, verified public release dates, and blind-vote checks so teams can judge upgrades with real evidence. Compare 178 releases and spot a 16% regression rate before switching, not after.