Z.ai Releases GLM-5.3 for Better Coding and Long Tasks

Z.ai just launched GLM-5.3 by focusing entirely on better post-training methods. They kept the previous 743B base model exactly the same while adding more data and longer training sessions. This approach resulted in major performance gains across the board.

Testing shows big jumps in coding and problem solving skills. Scores for software engineering and complex terminal tasks improved significantly compared to the last version. The model is now much better at handling long, complicated goals.

Security features also saw unexpected growth during the testing phase. The team noted high success rates in cybersecurity benchmarks and exploit prevention. You can expect the official model weights to be available for download in about two weeks.