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LLM Prices Today

xAI Grok 4.3 API pricing

Token prices on OpenRouter and at the provider’s list price, and what your own workload would cost per month.

Input
$1.25
Output
$2.50
Cached input
$0.20

OpenRouter, per 1M tokens. A dash means no listed price.

Your monthly cost

Your workload

90M input and 18M output tokens a month (30-day month; token counts are per request).

Assumes: 1,000 conversations a day, each sending about 3,000 tokens of history and instructions and receiving about 600 tokens of replies.

Input not in cache
$113
Output
$45.00
Total per month
$158
Per day
$5.25
Per request
$0.0053
Unit
Currency

The share you mark as “from cache” is billed at this model’s published cache-read price. Cache-write charges are not included. Compare this bill with other models.

Every price, with its source

OpenRouter price, per 1M tokens

Input
$1.25
Output
$2.50
Cached input (read)84% below the input price
$0.20
Batch (input / output)
$1.00 / $2.00
Context window
1,000,000 tokens
Maximum output
900,000 tokens
Accepts
text, image, file
Reasoning mode
yes
Intelligence Indexby Artificial Analysis, relayed by OpenRouter
24.9
Listed since
30 Apr 2026

Provider list price, per 1M tokens

Input / output
$1.25 / $2.50
Cached input (read)
$0.20
Batch (input / output)
$1.00 / $2.00
Above 200K tokens (input / output)
$2.50 / $5.00

As recorded in the LiteLLM price table under xai/grok-4.3, which cites the provider’s pricing page. It matches the OpenRouter price.

Collected from the OpenRouter models API (466 entries). 99 models are cross-checked against provider list prices in the LiteLLM price table.

About Grok 4.3

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

Description supplied by OpenRouter. Model id for the API: x-ai/grok-4.3

Other xAI models

Questions and answers

How much does xAI Grok 4.3 cost per million tokens?

At the collection of 3 Oct 2026, 08:40 UTC, OpenRouter listed xAI Grok 4.3 at $1.25 per million input tokens and $2.50 per million output tokens. The provider list price recorded by LiteLLM is $1.25 for input and $2.50 for output.

What would xAI Grok 4.3 cost per month?

For 1,000 requests a day with 3,000 input and 600 output tokens each, over a 30-day month and with no caching, the bill is $158. Change the numbers in the simulator on this page to match your own traffic.

Does xAI Grok 4.3 have a cheaper price for cached input?

Yes. Cached input is listed at $0.20 per million tokens, 84% below the normal input price.

What is the context window of xAI Grok 4.3?

1,000,000 tokens, with a maximum output of 900,000 tokens, as reported by OpenRouter.

Is there a batch price for xAI Grok 4.3?

Yes. OpenRouter lists a batch variant at $1.00 per million input tokens and $2.00 per million output tokens, for requests that can wait for an asynchronous answer.

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