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SpaceXAI

Grok 4.6

Grok 4.6 is a SpaceXAI model with 500K context, $2 in / $6 out per million tokens, last verified October 1, 2026. Open weights: no. Status: Superseded since September 21, 2026; the current pick is Grok 4.7. Public-board scores are linked to the publisher; vendor-only figures stay in the watch-out, not on the board.

Grok 4.6 was xAI's August 2026 coding flagship, superseded by Grok 4.7 (2026-09-21) at the same $2/$6 price.

Recorded profile verification October 1, 2026Individual provider fields may change

AI model specification details
SpecificationGrok 4.6
ProviderSpaceXAI
TierFrontier
Context window500K
Max outputNot verifiedUnverified
Input / 1M tokens$2
Output / 1M tokens$6
WeightsClosed
ParametersNot verifiedUnverified
Reasoning levelslow, medium, high, xhigh
Modalitiestext, image
API model idgrok-4.6
ReleasedAugust 12, 2026

Pricing tiers: Standard $2/$6 per MTok below 200K prompt tokens; at 200K or more the full request bills $4/$12. Cached input $0.50 short or $1 long. US regional inference adds 10%. The published context is 500K; a separate text-output cap remains unverified.

Best for

  • Coding agents
  • Chat and knowledge
  • Cost-sensitive frontier work

Watch out

An earlier API model, still listed in pricing. Current selection docs recommend Grok 4.7 at the same Standard base rates. Long-context billing starts at 200K inclusive. Effort defaults high and cannot be disabled; unsupported reasoning parameters can error.

History

Grok 4.6 timeline

Release and status events for this model that passed two-source verification — dated, sourced, and linked.

  • Grok 4.6 on Microsoft FoundryAvailability updateAugust 26, 2026

    Grok 4.6 entered public preview on Microsoft Foundry Models (long-horizon reasoning positioning).

    xAI — Grok 4.6 on Microsoft Foundry
  • Grok 4.6Availability updateAugust 19, 2026

    Amazon Bedrock added Grok 4.6 (model id `xai.grok-4.6`).

    AWS what's new — Grok 4.6 on Amazon Bedrock
  • Grok 4.6General availabilityAugust 12, 2026

    xAI's model card recorded Grok 4.6 as its code and chat default at $2/$6 with a 500K context window; Grok 4.7 replaced it on 2026-09-21.

    xAI Grok 4.6 model card

Source receipts

Catalog figures for this model were checked against the following sources.

Common questions

Grok 4.6

Answered from the verified figures on this page rather than general guidance.

How much does Grok 4.6 cost per million tokens?
Grok 4.6 lists base rates of $2 per million input tokens and $6 per million output tokens. Estimate both input and output token volume and any additional charges for your workload. Standard $2/$6 per MTok below 200K prompt tokens; at 200K or more the full request bills $4/$12. Cached input $0.50 short or $1 long. US regional inference adds 10%. The published context is 500K; a separate text-output cap remains unverified.
What is Grok 4.6's context window?
Grok 4.6 accepts about 500K tokens of context. That only matters if you routinely send very long documents, large codebases, or multi-turn histories that approach that limit.
What is Grok 4.6 best for?
Grok 4.6 is a frontier tier from SpaceXAI. It suits coding agents, chat and knowledge, cost-sensitive frontier work. An earlier API model, still listed in pricing. Current selection docs recommend Grok 4.7 at the same Standard base rates. Long-context billing starts at 200K inclusive. Effort defaults high and cannot be disabled; unsupported reasoning parameters can error.
Model comparison catalogBenchmark library