xAI (Grok)

Grok 4.6

SpaceXAI's frontier model for coding, agentic tasks, and knowledge work, with a 500K-token context window, image input, and controllable reasoning effort.

ActiveReleased August 12, 2026Knowledge cutoff February 1, 2026
Tool callingCan invoke external tools and APIs (function calling) mid-response.Structured outputCan return JSON or schema-constrained responses instead of free text.ReasoningUses extended thinking / chain-of-thought for harder multi-step problems.Effort controlLets you dial thinking depth (low / medium / high) to trade cost for quality.Fine-tuningSupports training a custom variant on your own data (vendor fine-tune API or self-hosted open weights).

Source: Grok 4.6 technical overview, xAI language models API, xAI reasoning documentation, xAI prompt caching documentation

Price per 1M tokens
$2 in / $6 out
Context window500,000
Cache read$0.5 / M
ModalitiesText, Image → Text

Pricing

Every billing leg from the live catalog, in USD per 1M tokens.

Billing legRate
Input$2 / M
Output$6 / M
Cache read$0.5 / M

Cost calculator

Billing-grade math over the rate card above, including the thinking tokens most estimates miss.

Hidden reasoning tokens bill as output. 1.0x = thinking off. Medium-effort reasoning typically lands near 3x; heavy reasoning runs 6x to 8x. Set it to match your workload.

Estimated monthly cost
$760
at current list prices
Fresh input$400
Cached input$0.00
Output incl. thinking$360
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Provider

Where this model runs, and what it charges.

PlatformInput / MOutput / MCache read / MBatchAccess
xAI
$2$6$0.5—First-party API

Price history

Has this model gotten cheaper or more expensive?

EffectiveInput / OutputStatus
August 12, 2026 – August 13, 2026$2 / $6past
August 13, 2026$2 / $6current

More from xAI (Grok)

Other models from the same provider.

Grok 4.5
xai/grok-4.5
$2 / $6 in / out per 1M
Grok 4.3
xai/grok-4.3
$1.25 / $2.5 in / out per 1M
Grok 4.20
xai/grok-4.20
$2 / $6 in / out per 1M
Grok 3
xai/grok-3
$3 / $15 in / out per 1M
Grok 3 Mini
xai/grok-3-mini
$0.3 / $0.5 in / out per 1M

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Rates are generated from SuperPenguin's live pricing catalog.