GLM-5.1 Launches: 744B MoE Scores 94% of Opus on Coding, Open Weights April 6-7

Apiyi / r/LocalLLaMA·medium signal

Z.ai (formerly Zhipu AI) launched GLM-5.1 on March 27, a 744B parameter MoE model (256 experts, 8 active per token, 40B active params). Self-reported coding evaluation score of 45.3 vs Opus 4.6's 47.9 (94.6% parity), a 28% improvement over GLM-5's 35.4. Open weights confirmed for April 6-7 release. Important caveat: benchmarks are self-reported with no independent verification. At these scores and with open weights, GLM-5.1 could become the strongest open-weight coding model available.