Access
- SDK
- @ai-sdk/xai
- Environment variables
- XAI_API_KEY
Models
8 of 8 model versions
| Model | Family | Provider model ID | Protocol | Streaming | Organization | Context | Max output | Input | Output | Reasoning | Tool call | Structured | Temperature | Weights | Price | Released | Updated | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grok 4.5 xai/grok-4.5 | XAxAI | Grok | grok-4.5 | Custom | Yes | 500K | 500K | Yes | Yes | Yes | Yes | Closed | input $2/M · output $6/M cache read $0.3/M | 2026-07-08 | 2026-08-06 | |||
| Grok Imagine Video 1.5 xai/grok-imagine-video-1.5 | XAxAI | Grok | grok-imagine-video-1.5 | Custom | Yes | 1K | - | -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 | XAxAI | Grok | grok-4.3 | Custom | Yes | 1M | 30K | Yes | Yes | Yes | Yes | Closed | input $1.25/M · output $2.5/M cache read $0.2/M | 2026-04-17 | 2026-06-11 | |||
| Grok Build 0.1 xai/grok-build-0.1 | XAxAI | Grok Build | grok-build-0.1 | Custom | Yes | 256K | 256K | Yes | Yes | Yes | Yes | Closed | input $1/M · output $2/M cache read $0.2/M | 2026-04-16 | 2026-06-11 | |||
| Grok 4.20 xai/grok-4.20 | XAxAI | Grok | grok-4.20 | Custom | Yes | 2M | - | Yes | Yes | Yes | Yes | Closed | Pricing unavailable | 2026-03-31 | 2026-03-31 | |||
| Grok 4.20 Multi-Agent xai/grok-4.20-multi-agent | XAxAI | Grok | grok-4.20-multi-agent | Custom | Yes | 2M | - | 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 | XAxAI | Grok | grok-4.20-0309-non-reasoning | Custom | Yes | 1M | 30K | -No | Yes | Yes | Yes | Closed | input $1.25/M · output $2.5/M cache read $0.2/M | 2026-03-09 | 2026-03-09 | |||
| Grok 4.20 (Reasoning) xai/grok-4.20-0309-reasoning | XAxAI | Grok | grok-4.20-0309-reasoning | Custom | Yes | 1M | 30K | Yes | Yes | Yes | Yes | Closed | input $1.25/M · output $2.5/M cache read $0.2/M | 2026-03-09 | 2026-03-09 |