xAI was founded by Elon Musk in March 2023 and is known for the Grok family of chatbots and models. SpaceX acquired it in February 2026, and it has since been renamed SpaceXAI and then SpaceX Super Intelligence. It is based in Palo Alto, California.
- Founded
- 2023
- Type
- Corporate division
- Founders
- Elon Musk, Igor Babuschkin and Kyle Kosic
- AI lab
- Inference provider
- 38 hosted endpoints
| Model | Endpoint | Context | Input /M | Output /M | Cached input /M | Cache write /M | Uptime 1d |
|---|---|---|---|---|---|---|---|
 Grok 4.20 | xai | 2M | $1.25 | $2.50 | $0.20 | — | 100.00% |
| Grok 4.20 | xai/priority | 2M | $2.50 | $5.00 | $0.40 | — | — |
| Grok 4.20 | xai/zdr | 2M | $1.25 | $2.50 | $0.20 | — | 100.00% |
| Grok 4.20 | xai/zdr/priority | 2M | $2.50 | $5.00 | $0.40 | — | 100.00% |
| Grok 4.20 Multi-Agent | xai | 2M | $1.25 | $2.50 | $0.20 | — | 22.22% |
| Grok 4.20 Multi-Agent | xai/priority | 2M | $2.50 | $5.00 | $0.40 | — | — |
| Grok 4.20 Multi-Agent | xai/zdr | 2M | $1.25 | $2.50 | $0.20 | — | 100.00% |
| Grok 4.20 Multi-Agent | xai/zdr/priority | 2M | $2.50 | $5.00 | $0.40 | — | — |
| Grok 4.3 | xai | 1M | $1.25 | $2.50 | $0.20 | — | 99.86% |
| Grok 4.3 | xai/priority | 1M | $2.50 | $5.00 | $0.40 | — | 100.00% |
| Grok 4.3 | xai/zdr | 1M | $1.25 | $2.50 | $0.20 | — | 99.79% |
| Grok 4.3 | xai/zdr/priority | 1M | $2.50 | $5.00 | $0.40 | — | 100.00% |
| Grok 4.5 | xai | 500K | $2.00 | $6.00 | $0.30 | — | 100.00% |
| Grok 4.5 | xai/priority | 500K | $4.00 | $12.00 | $0.60 | — | — |
| Grok 4.5 | xai/zdr | 500K | $2.00 | $6.00 | $0.30 | — | 99.93% |
| Grok 4.5 | xai/zdr/priority | 500K | $4.00 | $12.00 | $0.60 | — | — |
| Grok 4.6 | xai | 500K | $2.00 | $6.00 | $0.50 | — | 100.00% |
| Grok 4.6 | xai/priority | 500K | $4.00 | $12.00 | $1.00 | — | — |
| Grok 4.6 | xai/zdr | 500K | $2.00 | $6.00 | $0.50 | — | 100.00% |
| Grok 4.6 | xai/zdr/priority | 500K | $4.00 | $12.00 | $1.00 | — | — |
| Grok 4.6 | xai/zdr/us | 500K | $2.20 | $6.60 | $0.55 | — | 100.00% |
| Grok 4.7 | xai | 500K | $2.00 | $6.00 | $0.50 | — | 100.00% |
| Grok 4.7 | xai/priority | 500K | $4.00 | $12.00 | $1.00 | — | — |
| Grok 4.7 | xai/zdr | 500K | $2.00 | $6.00 | $0.50 | — | 100.00% |
| Grok 4.7 | xai/zdr/priority | 500K | $4.00 | $12.00 | $1.00 | — | 100.00% |
| Grok 4.7 | xai/zdr/us | 500K | $2.20 | $6.60 | $0.55 | — | 100.00% |
| Grok Build 0.1 | xai | 256K | $1.00 | $2.00 | $0.20 | — | 100.00% |
| Grok Build 0.1 | xai/priority | 256K | $2.00 | $4.00 | $0.40 | — | — |
| Grok Build 0.1 | xai/zdr | 256K | $1.00 | $2.00 | $0.20 | — | 100.00% |
| Grok Build 0.1 | xai/zdr/priority | 256K | $2.00 | $4.00 | $0.40 | — | — |
| Grok Imagine Image 2.0 | xai | 66K | $0.00 | $0.00 | — | — | 99.71% |
| Grok Imagine Video | xai | — | $0.00 | $0.00 | — | — | 100.00% |
| Grok Imagine Video 1.5 | xai | — | $0.00 | $0.00 | — | — | 100.00% |
| Grok Imagine Video 1.5 Lite | xai | — | $0.00 | $0.00 | — | — | 98.41% |
| Grok STT 1.0 | xai | — | $27.7778 | $0.00 | — | — | 100.00% |
| Grok STT 2.0 | xai | — | $27.7778 | $0.00 | — | — | 100.00% |
| Grok Voice TTS 1.0 | xai | 15K | $15.00 | $0.00 | — | — | 99.78% |