Today, kimi-k3 was released, surpassing fable-5;

Yesterday, gpt-5.6-sol was released, surpassing fable-5;
The day before yesterday, grok-4.5 was released, surpassing opus-4.8;
Two days before that, glm-5.2 was released, surpassing opus-4.8;
Three days before that, fable-5 was released, surpassing gpt-5.5;
Four days before that, minimax-m3 was released, surpassing gpt-5.5;
Five days before that, opus-4.8 was released, surpassing gpt-5.5;
Six days before that, deepseek-v4 was released, surpassing opus-4.7;
Seven days before that, gpt-5.5 was released, surpassing opus-4.7;
Eight days before that, opus-4.7 was released, surpassing gpt-5.4.