GLM-5.3 is a large-scale reasoning model from Z.ai, built for complex software engineering and long-horizon agent tasks. It supports text input and output with a 1M-token context window, and improves...
Details
| Field | Value |
|---|---|
| id | z-ai/glm-5.3 |
| family | glm |
| modality | text->text |
| context_length | 1048575 |
| max_output_tokens | 943717 |
| release_date | 2026-08-14 |
| is_open_weights | yes |
| supports_tool_call | yes |
| supports_reasoning | yes |
| supports_structured_output | yes |
| supports_attachment | no |
| input_modalities | text |
| output_modalities | text |