Provider · Founded 2023 · Palo Alto, USA

xAI: models, pricing and benchmarks

AI company behind the Grok models.

Models

in this index

Avg input

$15.40

per 1M tokens

Avg output

$71.89

per 1M tokens

Open weights

models

Best model

grok-4-reasoning

by average score

Website

Visit

https://x.ai

All xAI models

Sorted by average benchmark score. Prices are per million tokens and context is measured in tokens.

#	Model	Provider	Context	Input / 1M	Avg score
1	Grok 4 Reasoning	xAI	2000000	$19.67	87.8
2	Grok 4 Turbo	xAI	1000000	$19.21	86.7
3	Grok 4 Max	xAI	2000000	$19.70	86.6
4	Grok 4	xAI	200000	$17.90	86.5
5	Grok 3 Max	xAI	2000000	$17.66	85.9
6	Grok 4 Pro	xAI	1000000	$19.00	85.4
7	Grok 3 Pro	xAI	400000	$16.61	83.8
8	Grok 3 Turbo	xAI	128000	$15.97	83.1
9	Grok 3 Reasoning	xAI	200000	$16.07	82.9
10	Grok 3	xAI	128000	$15.84	82.8
11	Grok 4 Mini	xAI	65536	$12.21	77.9
12	Grok 3 Mini	xAI	200000	$9.67	73.9
13	Grok 4 Nano	xAI	16384	$8.97	72.7
14	Grok 3 Nano	xAI	8192	$7.12	67.8

Best xAI models

frontier

Grok 4 Reasoning

Grok 4 Reasoning is a frontier model from xAI. It offers a 2,000,000-token context window, costs $19.67 per million input tokens and $93.29 per million output tokens, and averages 87.8 across the index's benchmark suite.

$19.67 in · 2,000,000 context · 87.8 avg frontier

Grok 4 Turbo

Grok 4 Turbo is a frontier model from xAI. It offers a 1,000,000-token context window, costs $19.21 per million input tokens and $87.37 per million output tokens, and averages 86.7 across the index's benchmark suite.

$19.21 in · 1,000,000 context · 86.7 avg frontier

Grok 4 Max

Grok 4 Max is a frontier model from xAI. It offers a 2,000,000-token context window, costs $19.70 per million input tokens and $98.29 per million output tokens, and averages 86.6 across the index's benchmark suite.

$19.70 in · 2,000,000 context · 86.6 avg frontier

Grok 4

Grok 4 is a frontier model from xAI. It offers a 200,000-token context window, costs $17.90 per million input tokens and $84.75 per million output tokens, and averages 86.5 across the index's benchmark suite.

$17.90 in · 200,000 context · 86.5 avg frontier

Grok 3 Max

Grok 3 Max is a frontier model from xAI. It offers a 2,000,000-token context window, costs $17.66 per million input tokens and $89.12 per million output tokens, and averages 85.9 across the index's benchmark suite.

$17.66 in · 2,000,000 context · 85.9 avg

How xAI fits

xAI has 14 models in the index, of which 0 are open weights. The average input price across the lineup is $15.40 per million tokens, and the average output price is $71.89 per million tokens. The strongest model by average benchmark score is grok-4-reasoning.

Use the table above to compare individual models, or open a model page for its full benchmark breakdown. If you are choosing between providers, start with the comparison pages and then check context limits and licence terms.

FAQ

How many xAI models are in the index?

xAI has 14 models in this index, of which 0 are open weights.

What is the cheapest xAI model?

Grok 3 Nano is the cheapest xAI model by input price at $7.12 per million tokens.

What is the best xAI model?

Grok 4 Reasoning has the highest average benchmark score in the xAI lineup at 87.8.

Are xAI models open weights?

0 of the 14 xAI models in this index are open weights. The rest are proprietary.

Where is xAI based?

xAI was founded in 2023 and is headquartered in Palo Alto, USA.