Grok AI models by xAI
| Model | API ID | Release | Cutoff | Conf. | Status | Notes |
|---|---|---|---|---|---|---|
| Grok 4.3 | grok-4.3 |
2026-06 | 2024-11 | high | active | Most intelligent and fastest Grok model. Cutoff: November 2024. 1M context. $1.25/$2.50 per MTok. |
| Grok 4.20 Reasoning | grok-4.20-0309-reasoning |
2026-03 | 2024-11 | high | active | Reasoning variant. Cutoff: November 2024. 1M context. |
| Grok 4.20 Non-Reasoning | grok-4.20-0309-non-reasoning |
2026-03 | 2024-11 | high | active | Non-reasoning variant. Cutoff: November 2024. |
| Grok 4.20 Multi-Agent | grok-4.20-multi-agent-0309 |
2026-03 | 2024-11 | high | active | Multi-agent variant. Cutoff: November 2024. |
| Grok Build 0.1 | grok-build-0.1 |
2026-05 | 2024-11 | low | active | Coding model. 256k context. $1.00/$2.00 per MTok. |
| Grok Imagine (Image Quality) | grok-imagine-image-quality |
2026-04 | n/a | low | active | Image generation. $0.05/image. |
| Grok Imagine (Video) | grok-imagine-video |
2026-04 | n/a | low | active | Video generation. $0.050/sec. |
Knowledge Cutoffs