GLM-5.3 vs. GPT-5.6 Sol on DeepSWE: Cost, Coding, and Routing
GLM-5.3, an open-weight model from Together AI, solves 85.9% of DeepSWE tasks at $6.61 each when cascaded with GPT-5.6 Sol, compared to Sol alone at 72.7% for $8.37, making the cascade 13 points bette…