Meta's largest open-weight model at 405B parameters.
Z.ai's frontier reasoning model for long-context agents and software engineering.
No shared agent demos for these models yet.
No captured outputs for these models yet.
Based on the Capability Index, GLM 5.2 scores higher (83.4 vs 62.7). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Key differences: GLM 5.2 has a notably higher capability index (20.7 point gap); only GLM 5.2 supports vision input; only GLM 5.2 offers extended reasoning mode. Compare full specs on this page.
If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Llama 3.1 405B and GLM 5.2 for free on idapt.app to see which performs better for your specific needs.