Grok 4.6

Grok 4.6 was the flagship on the xAI API from its August 12, 2026 launch until Grok 4.7 succeeded it at the same price in September. xAI announced its availability on Amazon Bedrock, Google Cloud's agent platform, Microsoft Foundry and GitHub Copilot.

By xAIReleased August 12, 2026Data checked October 10, 2026

LegacyClosedFrontier

Specifications

Context window: 500Kabout 375,000 words, or 750 pages
Max output: Not published
Input price: $2per 1M tokens
Output price: $6per 1M tokens
Cached input: $0.50per 1M tokens
Weights: ClosedProprietary
Parameters: Undisclosed
Input types: Text, Images
Output types: Text
Reasoning mode: Yes
Tool calling: Yes
Released: Aug 12, 2026Legacy

Rates for prompts under 200K tokens; at 200K or more, $4 input, $1 cached and $12 output. Max output is not stated by xAI.

What it costs in practice

Workload	Monthly cost at list price
Support chatbot30,000 conversations a month, 2,000 input and 400 output tokens each	$192
Document summaries2,000 documents a month, 12,000 input and 800 output tokens each	$58
Coding agent1,000 tasks a month, 60,000 input and 6,000 output tokens each	$156

Standard rates, no caching or batch discounts. Run your own numbers.

Strengths

Offered on several major cloud platforms
500K-token context window
Reasoning effort from low to xhigh

Trade-offs to weigh

Same price as the newer Grok 4.7
No Batch API support

Where it fits

xAI positions Grok 4.6 for:

codingagentsenterprise

Where you can use it

API
Amazon Bedrock
Google Vertex AI
Microsoft Azure AI Foundry
GitHub Copilot

Alternatives to consider

Model	Tier	Context	Input / output per 1M
Qwen3.8-MaxAlibaba (Qwen)	Frontier	1M	$2 / $6	Compare
Mistral Large 4Mistral AI	Frontier	1M	$1.36 / $4.18	Compare
Qwen3.8-2.4T-A95BAlibaba (Qwen)	Frontier	256K	$2 / $6	Compare
Gemini 3.1 ProGoogle	Frontier	1M	$2 / $12	Compare

Frequently asked questions

How much does Grok 4.6 cost?

Grok 4.6 lists at $2 per million input tokens and $6 per million output tokens, with cached input at $0.50 (checked October 10, 2026). Rates for prompts under 200K tokens; at 200K or more, $4 input, $1 cached and $12 output. Max output is not stated by xAI. Confirm current rates on the provider's pricing page before you commit.

What is the context window of Grok 4.6?

Grok 4.6 accepts up to 500,000 tokens of context (about 375,000 words, or 750 pages). Long prompts cost more and can be slower, so most apps send only what the task needs.

Is Grok 4.6 open source?

No. Grok 4.6 is a proprietary model from xAI; its weights aren't published. You can use it through the xAI API and through Amazon Bedrock, Google Vertex AI, Microsoft Azure AI Foundry, GitHub Copilot.

What is Grok 4.6 best for?

xAI positions Grok 4.6 for coding, agents, enterprise. It accepts text, images as input, has a reasoning (thinking) mode and supports tool calling. Test it on a sample of your own tasks before you choose it for production.

Sources

Facts checked against these pages on October 10, 2026. Spot an error? Tell us.

Still choosing a model?

Send us your use case and constraints. We'll come back with a shortlist and an evaluation plan you can run on your own data.

Free and vendor-neutral: no model provider pays for placement.
Your details go only to partners you agree to.