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Grok 4.6

Release Ruler for Grok 4.6: released Aug 12, 2026, $2 per 1M input tokens, proprietary. Each thin stem on the ruler is another model we track.

Grok 4.6 is a xAI language model released Aug 12, 2026; xAI's newest language model in our dataset is Grok 4.7. Proprietary, API access only. xAI's Grok 4.6 frontier model for coding, agentic tasks and knowledge work, available on the API since Aug 12, 2026 with a 500k context window. Verified against vendor sources on Oct 26, 2026.

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  • ReleasedAug 12, 2026
  • Context window500K500,000 tokens
  • LicenceProprietaryProprietary (API)
InTextImageOutText

Key facts

Grok 4.6: key facts with sources
FactValueSource
VendorxAIn/a
ReleasedAug 12, 2026source
Statusgenerally availablen/a
API idgrok-4.6source
Context window500,000 tokens (500K)source
Inputtext, imagesource
Outputtextsource
LicenceProprietary (API)source
Pricing$2 in / $6 out per 1M tokens Below 200k prompt tokens; $4 / $1 / $12 per 1M tokens (input / cached input / output) above 200k.source

Where Grok 4.6 sits in our data

How Grok 4.6 differs from Grok 4.5

Read from the recorded facts of the two models, not from a head-to-head test. We have not run either.

  • Listed price is the same as Grok 4.5: $2 in and $6 out (per 1M tokens).
  • Both list a 500K-token context window.
  • Both accept text, image as input.
  • Grok 4.6 came out 35 days after Grok 4.5.
  • Facts for the other model: Grok 4.5.

What we tested

Nothing yet. We have not run Grok 4.6 ourselves, so every fact on this page is Reported from the sources below. When we do test it, the scope will be stated here and in our test logs. See methodology.

Sources

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