All xAI models
x

Grok 4.5

xAI · released 1 month ago

Grok 4.5 is a xAI model with a 500K token context window — about 710 pages of text. It reads Text, Images, and Files and replies in Text. It can show its reasoning before it answers.

$2.30

input / 1M tokens

$6.90

output / 1M tokens

500K

context — about 710 pages

1.7¢

a client proposal

Pricing

Input
$2.30 per million tokens
Output
$6.90 per million tokens
Cached input
$0.345 per million tokens
Web search
0.57¢ per search
Long-context rate (over 200K)
$4.60 in · $13.80 out, per million tokens

Billed from your Alyph wallet. Prices can change when the provider changes theirs — last checked August 9, 2026.

The numbers

Provider
xAI
Released
1 month ago (2026-07-08)
Context window
500K tokens — about 710 pages
Max output
Not specified
Input
Text, Images, and Files
Output
Text
Reasoning
Shows its thinking before answering

Cost vs Token Amount

Drag the slider to adjust the split between input and output workload.

80% Input20% Output
free$3.22$6.440 tokens250k500k750k1000k
Grok 4.5

Adjust the ratio slider to change how output tokens influence the final price for equivalent workloads.

What a task costs

2K tokens in · 500 tokens out.

Grok 4.5

xAI

0.8¢

for this task

57% input · 43% output

Full pricing →

Your $5 welcome credit covers about 621 of these.

Compare Grok 4.5

Closest in price on a typical task:

Grok 4.5 vs Mistral Large →Grok 4.5 vs Mistral Large 2407 →Grok 4.5 vs Mixtral 8x22B Instruct →Grok 4.5 vs Gemini 3.5 Flash →Any other combination →

Questions, answered

How much does Grok 4.5 cost on Alyph?

Grok 4.5 costs $2.30 per million input tokens and $6.90 per million output tokens on Alyph. A typical task — 5K tokens in, 800 out — works out to about 1.7¢. Billed from your Alyph wallet, with hard spending limits. Prices can change when the provider changes theirs; this page was last checked on August 9, 2026.

What is Grok 4.5's context window?

500K tokens — about 710 pages. Prompts longer than 200K tokens are billed at the long-context rate.

Can Grok 4.5 read images and files?

Grok 4.5 reads Text, Images, and Files. Drop a file onto the canvas and it becomes part of the context — the only limit is the context window.

Does Grok 4.5 show its reasoning?

Yes. Grok 4.5 can expose its thinking before the final answer, so you can watch how it got there.

Test Grok 4.5 against Mistral Large

One prompt, both models at the same time, the better answer wins. Free to start, with $5 of credit.

Sign up free Try the demo