Model board / Grok 4.6

Verified 2026-10-22 against the pages listed below. Prices are USD per 1M tokens, list rate — no committed-use, enterprise or volume discount.

at/above 200K input: $4.00 in / $1.00 cached / $12.00 out. Same headline rate as Grok 4.5, but cached input is $0.50 against 4.5's $0.30 — the successor's cache costs 67% more

xAI states "no text output limit" rather than a number

cached input at 25% of base below 200K — a weaker discount than the 10% standard elsewhere on this board

Watch out

Superseded by Grok 4.7 at the identical rate, so there is no price reason to stay. The cache discount is still weaker than 4.5's — a prefix-heavy loop may bill lower on 4.5

What we would use it for

Long-running agents and codebase work under a 200K prompt

What this has cost, week by week

Output price at each refresh since 2026-08-14. 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.

Nothing has moved since we started tracking it.

Where these numbers came from

• https://docs.x.ai/developers/pricing
• https://docs.x.ai/developers/models/grok-4.6
• https://docs.x.ai/developers/advanced-api-usage/prompt-caching

No number on this page was written that was not read from one of those pages on 2026-10-22. 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.

Discussed in Naderu Weekly

• Three launches, no price rises — 2026-09-24
• The clock is now part of the bill — 2026-08-14

The rest of the board

This row sits alongside 76 others on the model board, refreshed every week. The same data as JSON, and the terms for using it, are at /board-data.