# Grok 4.5

`grok-4.5` — **xai** · CHAT

> Grok 4.5 (grok-4.5) is a chat model from xai with a 500K-token context window; proprietary (API-only); capabilities tools, vision, reasoning; input image, pdf, text; output text.

| Field | Value |
| --- | --- |
| Vendor | xai |
| Kind | CHAT |
| Context window | 500,000 tokens |
| Max output tokens | 500,000 tokens |
| Indicative price (US list) | $2 in / $6 out per 1M tokens (indicative US list — verify with vendor) |
| Input modalities | image, pdf, text |
| Output modalities | text |
| Capabilities | tools, vision, reasoning |
| Weights | Proprietary (API-only) |
| Release date | 2026-07-08 |
| Sources | litellm, models-dev |
| Last verified | 2026-10-30 |

*Part of the [Model Catalog](https://openviglet.github.io/model-catalog/) — [xai models](https://openviglet.github.io/model-catalog/models/xai/) · [Vendor JSON](https://openviglet.github.io/model-catalog/by-vendor/xai.json) · [HTML](https://openviglet.github.io/model-catalog/models/xai/grok-4.5.html)*