[Zhipu Releases GLM-5.3] According to IT Home, Zhipu has officially released GLM-5.3. Compared to GLM-5.2, the base model remains unchanged, but post-training scaling has significantly improved the model's intelligence upper limit: dozens of times longer task contexts, more diverse environment types, and extended post-training durations. Zhipu stated that in multiple mainstream benchmark tests, GLM-5.3 is currently the highest-ranked open-source model, with programming and agent capabilities approaching Claude Fable 5, and programming experience surpassing other domestic models.