Grok 4.3

Name: Grok 4.3
Brand: xAI · Grok
Price: 2.5 USD

previous xAI · Grok

Verified 2026-09-03 against the provider's own page. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

Input

$1.25

Cached input

$0.2

Cache write

—

Output

$2.50

Context window

1,000,000

Max output

—

Weights

closed

Caching

explicit

at/above 200K input: $2.50 in / $0.40 cached / $5.00 out

max output not stated on the models page

Watch out

A previous-gen model with a larger window and lower price than the current one — read that carefully

What we would use it for

One of the cheapest 1M-window rows on the board

What this has cost, week by week

Output price at each refresh since 2026-07-30. A vendor change is the provider changing its price. Our correction means this board changed what it prints and the provider's charge did not move — the two are never merged, because publishing the second as the first would be a price rise that never happened.

07-30 $2.50→08-06 $2.50→08-14 $2.50→08-20 $2.50→08-27 $2.50→09-03 $2.50

Nothing has moved since we started tracking it.

Where these numbers came from

https://docs.x.ai/docs/models

No number on this page was written that was not read from one of those pages on 2026-09-03. If one is wrong, send us the source URL and it is corrected in the next weekly refresh, with a changelog line saying what was wrong — contact@naderu.com.

The rest of the board

This row sits alongside 53 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.