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xAI Grok

Grok 4.5 pricing, context window and limits

Grok 4.5 costs $2 per million input tokens and $6 per million output tokens at xAI Grok list price. It accepts up to 500,000 tokens of context and returns up to 500,000 tokens.

  • Model id grok-4.5
  • Snapshot

What does Grok 4.5 cost?​

List prices in US dollars per million tokens
Input$2
Output$6
Cached input (read)$0.3
Cache write—

US dollars per million tokens. A dash means no price is published.

How much can Grok 4.5 read and write?​

Token limits
Context window500,000
Max output500,000

What can Grok 4.5 do?​

Capabilities
Vision (image input)Yes
Tool callingYes
Structured outputYes
ReasoningYes
Inputtext, image, pdf
Outputtext

What does a request to Grok 4.5 cost?​

Cost of example requests at list price, in US dollars
A typical request: 1,000 tokens in, 500 out$0.005
A long request: 10,000 tokens in, 1,000 out$0.026
1,000 typical requests$5
1 million tokens in and 1 million out$8

Input read from the provider's prompt cache costs $0.3 per million tokens instead of $2, 85% less. A request that repeats a 1,000-token prompt from the cache costs $0.0033 instead of $0.005.

Among 8 xAI Grok models with a published price, Grok 4.5 is the 6th cheapest by input price. Its context window is the 5th largest of 13. List prices only; discounts, batch prices and prices above 200K tokens are not shown.

How do I call Grok 4.5 through DVARA?​

Configure the grok provider in the DVARA LLM Gateway and send the model id grok-4.5. DVARA, the AI governance platform, applies your policies, audit and cost attribution to the call. See LLM cost attribution and budgets.

In DVARA, if you haven't set your own price for a model, its calls are costed at the price in the catalogue that ships with your DVARA version. A price you set in Flightdeck always wins. You can switch catalogue prices off. Then a model with no price you set is counted as costing nothing. Every cost record says which price it used.

What should I check before relying on this data?​

The weekly review marked this entry. A person saw each mark and kept the model listed.

  • The provider charges more above 200K tokens of input; the table shows the base price.

Which other xAI Grok models are there?​

All 13 xAI Grok models · Search the full catalogue

Which models from other providers are similar to Grok 4.5?​

These are the closest in context window and input price, one per provider.

Snapshot 4 October 2026. DVARA reviews every price weekly before it is published. Get the whole catalogue as models.json. Prices are list prices in US dollars per million tokens; check your provider contract before you budget.