How to Get a Free Grok (xAI) API Key (2026)
2 free models available — credit card may be required. Get your Grok (xAI) API key →
All Free Grok (xAI) Models — Context Windows & Rate Limits
| Model | Context | Max Output | Modality | Rate Limit | Released | Status | |
|---|---|---|---|---|---|---|---|
| Grok-2 | 131K | 0 | $25/month free credits, resets monthly | — | Online | Details | |
| Grok-2 Mini | 131K | 0 | $25/month free credits, resets monthly | — | Online | Details |