API pricing

# xAI API pricing

> xAI API prices run from $0.20 per million input tokens (Grok 4.1 Fast) to $2 (Grok 4.5). Its highest-ranked model, Grok 4.6, costs $2 input and $6 output per million tokens.
- Canonical page: https://noometry.com/llm-pricing/xai
- Last updated: 2026-10-10
- Title: xAI API Pricing (October 2026): Every Model per 1M Tokens

xAI API prices run from $0.20 per million input tokens (Grok 4.1 Fast) to $2 (Grok 4.5). Its highest-ranked model, Grok 4.6, costs $2 input and $6 output per million tokens.

Last verified October 10, 2026

Official price list: [docs.x.ai](https://docs.x.ai/docs/models)

API prices per million tokens
|  |  |  | Cached input |  |  |  |
| --- | --- | --- | --- | --- | --- | --- |
| [Grok 4.1 Fast](https://noometry.com/models/grok-4-1-fast) | $0.20 | $0.50 | $0.05 | **$0.28** | 128K | 41.4 |
| [Grok Build 0.1](https://noometry.com/models/grok-build-0-1) | $1 | $2 | $0.20 | **$1.25** | 256K | 36.4 |
| [Grok 4.20 (Non-Reasoning)](https://noometry.com/models/grok-4-20) | $1.25 | $2.50 | $0.20 | **$1.56** | 1M | 48.6 |
| [Grok 4.20 Multi-Agent](https://noometry.com/models/grok-4-20-multi-agent) | $1.25 | $2.50 | $0.20 | **$1.56** | 1M | 46.2 |
| [Grok 4.3](https://noometry.com/models/grok-4-3) | $1.25 | $2.50 | $0.20 | **$1.56** | 1M | 43.8 |
| [Grok 4.5](https://noometry.com/models/grok-4-5) | $2 | $6 | $0.30 | **$3** | 500K | 55.0 |
| [Grok 4.6](https://noometry.com/models/grok-4-6) | $2 | $6 | $0.50 | **$3** | 500K | 56.9 |
| [Grok 4.7](https://noometry.com/models/grok-4-7) | $2 | $6 | $0.50 | **$3** | 500K | 53.1 |

## Prices on other platforms

The same models are often sold through clouds and resellers at different rates.

| Model | Route | Input | Output | Checked |
| --- | --- | --- | --- | --- |
| [Grok 4.6](https://noometry.com/models/grok-4-6) | azure | $2 | $6 | 2026-10-10 |
|  | bedrock | $2 | $6 | 2026-10-10 |
|  | openrouter | $2 | $6 | 2026-10-10 |
|  | vertex | $2 | $6 | 2026-10-10 |
|  | xai | $2 | $6 | 2026-10-10 |
| [Grok 4.5](https://noometry.com/models/grok-4-5) | openrouter | $2 | $6 | 2026-10-10 |
|  | xai | $2 | $6 | 2026-10-10 |
| [Grok 4.7](https://noometry.com/models/grok-4-7) | bedrock | $2 | $6 | 2026-10-10 |
|  | openrouter | $2 | $6 | 2026-10-10 |
|  | vertex | $2 | $6 | 2026-10-10 |
|  | xai | $2 | $6 | 2026-10-10 |
| [Grok 4.20 (Non-Reasoning)](https://noometry.com/models/grok-4-20) | azure | $2 | $6 | 2026-10-10 |
|  | openrouter | $1.25 | $2.50 | 2026-10-10 |
|  | vertex | $1.25 | $2.50 | 2026-10-10 |
|  | xai | $1.25 | $2.50 | 2026-10-10 |
| [Grok 4.20 Multi-Agent](https://noometry.com/models/grok-4-20-multi-agent) | openrouter | $1.25 | $2.50 | 2026-10-10 |
|  | xai | $1.25 | $2.50 | 2026-10-10 |
| [Grok 4.3](https://noometry.com/models/grok-4-3) | bedrock | $1.25 | $2.50 | 2026-10-10 |
|  | openrouter | $1.25 | $2.50 | 2026-10-10 |
|  | vertex | $1.25 | $2.50 | 2026-10-10 |
|  | xai | $1.25 | $2.50 | 2026-10-10 |
| [Grok 4.1 Fast](https://noometry.com/models/grok-4-1-fast) | azure | $0.20 | $0.50 | 2026-10-10 |
|  | vertex | $0.20 | $0.50 | 2026-10-10 |
| [Grok Build 0.1](https://noometry.com/models/grok-build-0-1) | openrouter | $1 | $2 | 2026-10-10 |
|  | xai | $1 | $2 | 2026-10-10 |

## Frequently asked questions

### How much does the xAI API cost?

xAI API prices run from $0.20 per million input tokens (Grok 4.1 Fast) to $2 (Grok 4.5). Its highest-ranked model, Grok 4.6, costs $2 input and $6 output per million tokens.

### Does xAI discount cached input?

Yes. Cached input is billed at a lower rate on 8 of the 8 priced models; the cached rate is listed next to each model.