x-ai API Pricing
x-ai offers 8 API models in the catalog. Combined input+output prices range from $3 (SpaceXAI: Grok Build 0.1) to $8 (SpaceXAI: Grok 4.7) per 1M tokens. Its most recent model is SpaceXAI: Grok 4.7 at $2 input / $6 output.
| Model | Input /1M | Output /1M | Cached in /1M | Context |
|---|---|---|---|---|
| SpaceXAI: Grok Build 0.1 | $1 | $2 | $0.2 | 256,000 |
| SpaceXAI: Grok 4.3 (batch) | $1 | $2 | $0.16 | 1,000,000 |
| SpaceXAI: Grok 4.3 | $1.25 | $2.5 | $0.2 | 1,000,000 |
| SpaceXAI: Grok 4.20 Multi-Agent | $1.25 | $2.5 | $0.2 | 2,000,000 |
| SpaceXAI: Grok 4.20 | $1.25 | $2.5 | $0.2 | 2,000,000 |
| SpaceXAI: Grok 4.7 | $2 | $6 | $0.5 | 500,000 |
| SpaceXAI: Grok 4.6 | $2 | $6 | $0.5 | 500,000 |
| SpaceXAI: Grok 4.5 | $2 | $6 | $0.3 | 500,000 |
Frequently asked questions
What is the cheapest x-ai model?
The cheapest x-ai model by combined price is SpaceXAI: Grok Build 0.1 at $1 input and $2 output per 1M tokens.
How many models does x-ai offer via API?
x-ai lists 8 models in the OpenRouter catalog as of October 21, 2026.
Price snapshot October 21, 2026, refreshed daily. Official x-ai pricing page ↗