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Models / xAI

Grok 4.6

GA

SUPERSEDED AS FLAGSHIP 2026-09-21, WITHOUT ANY LIFECYCLE CHANGE. Until that date this row read 'xAI's current flagship ... and the models index directs general use to it'; the index now names Grok 4.7 in every one of those slots ('For everything else, including code, use Grok 4.7', and Code/Chat both point at 4.7 in the Which model should I choose table). Being displaced is not a deprecation: xAI announces no deprecation date, no shutdown date and no migration guide for grok-4.6, its own model page still describes it as 'SpaceXAI's frontier model for coding, agentic tasks, and knowledge work', and the pricing page still serves it on all three clusters at unchanged rates - so status stays ga and deprecated_on, retires_on and replacement all stay null. Launched on the API 2026-08-12, dated by xAI's own release notes. Modality 'text, image -> text' per the official model page. No alias is published for this id - the Details panel lists none, unlike grok-4.5 (grok-4.5-latest) and grok-4.3 (grok-4.3-latest). TIERED pricing: figures shown are the base tier for prompts <=200K tokens; prompts >200K are billed 2x ($4/M input, $1/M cached, $12/M output). Knowledge cut-off February 1, 2026, stated in prose on the models index. Max output tokens null as a SOURCED ABSENCE OF A LIMIT, not a missing value: the 2026-08-12 release note states 'no text output limit'. Reasoning efforts low/medium/high/xhigh, default high. Batch API NOT supported, unlike grok-4.3 and grok-4.5. 500K context window, same as grok-4.5 and half of grok-4.3's 1M.

Grok 4.6 by xAI costs $2 per 1M input tokens and $6 per 1M output tokens ($3/1M blended), with a 500K (500.000-token) context window. It is generally available (GA), with a knowledge cutoff of 1 Feb 2026.

Last verified: 26 Sep 2026 · sourced from official provider documentation

Provider
xAI
Status
GA
Input price
$2 / 1M tokens
Output price
$6 / 1M tokens
Cached input
$0.5 / 1M tokens
Blended price
$3 / 1M tokens
Context window
500.000 tokens (500K)
Max output
—
Modality
text-in, image-in, text-out
Open weights
No — API only
Knowledge cutoff
2026-02-01
Released
12 Aug 2026
API string
grok-4.6

Source: xAI official documentation ↗

See also

Compare Grok 4.6 head-to-head

Grok 4.6 vs Grok 4.3→

$3 vs $1.56 blended /M · same family

Grok 4.6 vs Grok 4.5→

$3 vs $3 blended /M · same family

Grok 4.6 vs Grok 4.7→

$3 vs $3 blended /M · same family

FAQ

Grok 4.6 — questions & answers

How much does Grok 4.6 cost?

Grok 4.6 is priced at $2 per 1M input tokens and $6 per 1M output tokens ($3/1M blended at a 3:1 input-to-output ratio), with cached input at $0.5 per 1M tokens.

What is the context window of Grok 4.6?

Grok 4.6 has a 500.000-token context window (500K).

Is Grok 4.6 deprecated?

No — Grok 4.6 is generally available (GA) and not currently scheduled for deprecation or retirement in our tracker.

Does Grok 4.6 support image or vision input?

Yes — Grok 4.6 accepts image input. Listed modalities: text-in, image-in, text-out.

Can I self-host Grok 4.6?

No — Grok 4.6 is proprietary. Its weights are not publicly released, so it is available only through xAI's API (or hosted partners), not for self-hosting.

What is the API model string for Grok 4.6?

The API model identifier for Grok 4.6 is "grok-4.6" when calling xAI's API.

What is Grok 4.6's knowledge cutoff?

Grok 4.6's training knowledge cutoff is 1 Feb 2026.