Open-source GLM 4.7 reportedly matches Claude Sonnet on 70% of coding tasks

GLM 4.7, a 356B parameter open-source model from Zhipu AI, is now competing directly with closed models like Claude Sonnet on real-world coding. In a 3-week test, it handled 60-70% of tasks previously requiring Sonnet, with comparable performance on debugging and refactoring. Its API costs just $15/month versus Sonnet's $70 for the same usage, representing an 80% cost reduction for AI-assisted development.