Google Releases Gemini 3.7 Flash, Z.ai Unveils GLM-5.3 with Post-Training Gains

Google's new Gemini 3.7 Flash model significantly improves long-horizon coding work, achieving 65.3% on DeepSWE v1.1 and launching at half the price of its predecessor. Concurrently, Z.ai introduced GLM-5.3, an open-weights coding system that reuses the GLM-5.2 base model but achieves substantial benchmark gains, including a jump from 4.6% to 28.3% on Terminal-Bench 3.0, solely through scaled-up post-training.