xAI LLMs
Elon Musk-founded lab developing the Grok model series.
xAI focuses on the Grok line, with real-time access to X/Twitter data as a differentiator. Grok 2 introduced multimodality; Grok 3 reasoning-trained variants compete with the o-series. Pricing tracks GPT-4o tier.
Founded: 2023 · HQ: San Francisco, USA · Docs: docs.x.ai ↗
All xAI models
| Model | Family | Context | Input $/M | Output $/M | Released | Status |
|---|---|---|---|---|---|---|
| Grok 3 | Grok 3 | 1.0M | $3.00 | $15.00 | 2025-02-17 | active |
Comparisons with other providers
The most-searched comparisons involving xAI models:
Working with the xAI API
Documentation lives at https://docs.x.ai. Before paying for any call, count input tokens with the appropriate counter:
- OpenAI Token Counter — for GPT-* and o-series models
- Claude Token Counter — for Anthropic Claude models
- Gemini Token Counter — for Google Gemini models