# GLM-4.5

`glm-4.5` — **zai** · CHAT

> GLM-4.5 (glm-4.5) is a chat model from zai with a 128K-token context window; open-weight (355B parameters); capabilities tools, reasoning; input text; output text.

| Field | Value |
| --- | --- |
| Vendor | zai |
| Kind | CHAT |
| Context window | 128,000 tokens |
| Max output tokens | 32,000 tokens |
| Indicative price (US list) | $0.6 in / $2.2 out per 1M tokens (indicative US list — verify with vendor) |
| Cited capability index | intelligence index 12.8 · math 73.7 (cited from Artificial Analysis — verify at the source) |
| Input modalities | text |
| Output modalities | text |
| Capabilities | tools, reasoning |
| Weights | Open-weight |
| Parameters | 355B |
| Knowledge cutoff | 2025-04 |
| Release date | 2025-07-28 |
| Sources | committed, litellm, models-dev, overrides |
| Last verified | 2026-11-05 |

*Part of the [Model Catalog](https://models.viglet.org/) — [zai models](https://models.viglet.org/models/zai/) · [Vendor JSON](https://models.viglet.org/by-vendor/zai.json) · [HTML](https://models.viglet.org/models/zai/glm-4.5.html)*