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Grok 4.5

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Grok 4.5 is xAI's multimodal reasoning model with configurable reasoning effort, tool calling, and a 500K token context window.
Grok 4.5 is xAI's multimodal reasoning model with configurable reasoning effort, tool calling, and a 500K token context window.

Grok 4.5 is an AI model from xAI, available on ZeroTwo. It costs $2.00 per million input tokens and $6.00 per million output tokens, has a 500,000-token context window.

Price
$2.00 • $6.00
Input • Output

Grok 4.5 is xAI's multimodal reasoning model with configurable reasoning effort, tool calling, and a 500K token context window.

500,000 context window
Reasoning token support
Pricing
Pricing is based on the number of tokens used. For tool-specific models, like search and computer use, there's a fee per tool call. See details in the pricing page.

Requests whose prompt reaches 200,000 tokens move the whole request to long-context rates: $4.00 input and $12.00 output per million tokens.

Text tokens
Per 1M tokens
∙
Batch API price
Input
$2.00
Cached input
Output
$6.00
Quick comparison
Input
Cached input
Output
Grok 4.5
$2.00

Questions

How much does Grok 4.5 cost?

Grok 4.5 is priced at $2.00 per million input tokens and $6.00 per million output tokens. On ZeroTwo it is included in your plan's credits rather than billed per token.

What is Grok 4.5's context window?

Grok 4.5 accepts up to 500,000 tokens of context.

Can I use Grok 4.5 for free?

You can try Grok 4.5 on ZeroTwo's free plan, which includes a monthly credit allowance across every model in the catalogue. Heavier use moves to a paid plan rather than a per-token bill.