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Grok 4.6

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Grok 4.6 is SpaceXAI's frontier model for coding, long-running agents, knowledge work, and interactive visual projects.

Provider

SpaceXAI

Model family

xAI Grok

Frontier multimodal agentic LLM

Cost tier

Grok

Status

Current

Release Aug 12, 2026

Why teams choose it

🧠

The official API model ID is grok-4.6

with a 500K context window and low, medium, high, or xhigh reasoning effort.

📎

SpaceXAI positions the release for sustained agent trajectories

coding, knowledge work, and polished interactive or visual artifacts.

⚙️

Prompt cache keys and context compaction are important operational controls for long

tool-heavy conversations.

Tradeoffs to know

  • Published benchmark results are vendor-reported and depend on reasoning effort and agent harness.
  • Long contexts and xhigh reasoning can increase latency and cost; measure complete task economics rather than token price alone.
  • Web, X search, code execution, and function tools require application-level permission and output validation.

When not to use this

  • Not ideal for simple tasks where cheaper models in the same lineup are good enough.
  • Avoid for latency-sensitive real-time chat when raw response speed outweighs reasoning depth.
  • Confirm limits, pricing, and regional availability on the provider side before committing production workloads.

Technical specs

Inputs
text, image
Outputs
text
Capabilities
coding, long-running agents, knowledge work, visual reasoning, function calling, web search, X search, code execution, configurable reasoning
License
Proprietary API
Model string
grok-4-6

Benchmarks

{
  "source": "https://x.ai/news/grok-4-6",
  "deep_swe_v1_1": 65.9,
  "vendor_reported": true,
  "cursorbench_v3_2": 69.9,
  "aa_intelligence_index": 61,
  "frontier_code_v1_1_extended": 61.3
}

xAI Grok family lineup


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Grok 4.6 FAQ

What is Grok 4.6?

Grok 4.6 is SpaceXAI's frontier model for coding, long-running agents, knowledge work, and interactive visual projects. Official documentation lists text and image input, text output, a 500,000-token context window, configurable low through xhigh reasoning, function calling, web and X search, code execution, and the A...

When does Grok 4.6 fit best?

Repository-scale coding agents

What should teams watch out for with Grok 4.6?

Published benchmark results are vendor-reported and depend on reasoning effort and agent harness.

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