🛑 https://hubs.la/Q04vWxGM0 just proved how powerful post-training can be for powering agents. GLM-5.3 achieved a score of 60 on the Artificial Analysis Intelligence Index, effectively tying for the top spot among open weights models. The most fascinating part is that its gains in overall intelligence came entirely from fine-tuning GLM-5.2, rather than training a new base architecture. By training inside long-running software engineering environments, the model developed advanced emergent…