xAI
xAI develops the Grok family of models for reasoning, conversation, and multimodal use cases.
Official website or profileFamilies
2
Model versions
8
Providers
21
Focus areas
3
Resources and contact
Model families
Grok
ActiveGrok model family by xAI.
7 versions
Grok Build
ActiveGrok Build model family by xAI.
1 versions
Model versions
8 of 8 model versions
| Model | Organization | Family | Provider access | Context | Max output | Input | Output | Reasoning | Tool call | Structured | Temperature | Weights | Official price | Released | Updated | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grok 4.5 xai/grok/4-5 | xAI | Grok | 500K | 500K | TextImageDocument | Text | Yes | Yes | Yes | Yes | Closed | input $2/M · cache read $0.3/M output $6/M | 2026-07-08 | 2026-07-08 | ||
| Grok Imagine Video 1.5 xai/grok/imagine-video-1-5 | xAI | Grok | 1K | - | TextImageVideo | Video | -No | -No | -No | -No | Closed | input $0.01/image output $0.08/video second | 2026-05-30 | 2026-05-30 | ||
| Grok 4.3 xai/grok/4-3 | xAI | Grok | 1M | 30K | TextImageDocument | Text | Yes | Yes | Yes | Yes | Closed | input $1.25/M · cache read $0.2/M output $2.5/M | 2026-04-17 | 2026-06-11 | ||
| Grok Build 0.1 xai/grok-build/0-1 | xAI | Grok Build | 256K | 256K | TextImageDocument | Text | Yes | Yes | Yes | Yes | Closed | input $1/M · cache read $0.2/M output $2/M | 2026-04-16 | 2026-06-11 | ||
| Grok 4.20 xai/grok/4-20 | xAI | Grok | 2M | - | TextImageDocument | Text | Yes | Yes | Yes | Yes | Closed | Pricing unavailable | 2026-03-31 | 2026-03-31 | ||
| Grok 4.20 Multi-Agent xai/grok/4-20-multi-agent | xAI | Grok | 2M | - | TextImageDocument | Text | Yes | -No | Yes | Yes | Closed | Pricing unavailable | 2026-03-31 | 2026-03-31 | ||
| Grok 4.20 (Non-Reasoning) xai/grok/4-20-0309-non-reasoning | xAI | Grok | 1M | 30K | TextImageDocument | Text | -No | Yes | Yes | Yes | Closed | input $1.25/M · cache read $0.2/M output $2.5/M | 2026-03-09 | 2026-03-09 | ||
| Grok 4.20 (Reasoning) xai/grok/4-20-0309-reasoning | xAI | Grok | 1M | 30K | TextImageDocument | Text | Yes | Yes | Yes | Yes | Closed | input $1.25/M · cache read $0.2/M output $2.5/M | 2026-03-09 | 2026-03-09 |