Cheapest Grok Models
As of October 21, 2026, among LiteLLM's active models with a 32K-token context window or more, offered by at least two providers or by their own lab, the cheapest of the Grok models is Grok 4.20, at $1.563 per 1M tokens (blended), from xAI.
Top 7
Sorted by blended price: 3 input tokens for every output token, at each model's headline price (its own lab's API where it sells it, otherwise its cheapest provider). Only Grok models. Only active models with a 32K-token context window or more, offered by at least two providers or by their own lab. Free models are left out.
| # | Model | Lab | Blended price per 1M tokens | Price per 1M (in / out) | Context | Providers | Price from |
|---|---|---|---|---|---|---|---|
| 1 | Grok 4.20 | xAI | $1.563 | $1.25 / $2.50 | 1M | 2 | xAI |
| 2 | Grok 4.3 | xAI | $1.563 | $1.25 / $2.50 | 1M | 5 | xAI |
| 3 | Grok 4.5 | xAI | $3.00 | $2.00 / $6.00 | 500K | 3 | xAI |
| 4 | Grok 4.6 | xAI | $3.00 | $2.00 / $6.00 | 500K | 8 | xAI |
| 5 | Grok 4.7 | xAI | $3.00 | $2.00 / $6.00 | 500K | 6 | xAI |
| 6 | Grok 3 | xAI | $6.00 | $3.00 / $15.00 | 128K | 3 | Oracle Cloud (OCI) |
| 7 | Grok 4 | xAI | $6.00 | $3.00 / $15.00 | 128K | 4 | Oracle Cloud (OCI) |