How much does SpaceXAI: Grok 4.3 cost per 1M tokens?

SpaceXAI: Grok 4.3 costs $1.25 per 1M input tokens and $2.50 per 1M output tokens on the standard tier. Cached input is $0.200 per 1M.

What is SpaceXAI: Grok 4.3's context window?

SpaceXAI: Grok 4.3 accepts up to 1,000,000 tokens in a single request, and can return up to 900,000 output tokens.

Is there a cheaper OpenRouter model than SpaceXAI: Grok 4.3?

Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $1.25 for SpaceXAI: Grok 4.3, with a 16,385 token context window.

Where does this SpaceXAI: Grok 4.3 price come from?

From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

SpaceXAI: Grok 4.3 pricing

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… SpaceXAI: Grok 4.3 from OpenRouter costs $1.25 per 1M input tokens and $2.50 per 1M output tokens. Cached input is $0.200 per 1M. Context window 1,000,000 tokens.

API id x-ai/grok-4.3 · OpenRouter · source · updated 2026-09-25 · general-purpose

$1.25

Input / 1M tokens

$2.50

Output / 1M tokens

$0.200

Cached input / 1M

Context window

SpaceXAI: Grok 4.3 specifications

Provider: OpenRouter
API id: x-ai/grok-4.3
Model type: general-purpose
Context window: 1M tokens
Max output: 900K tokens
Currency: USD
Price source: Provider API
Last checked: 2026-09-25

grok-4.3 across providers

The same model, priced by every seller we track. Ranked by the cost of 1M input + 1M output tokens, standard tier; savings measured against buying from the vendor directly.

Provider	Input /1M	Cached /1M	Output /1M	1M in + 1M out	vs vendor
xAIVendorCheapest	$1.25	$0.200	$2.50	$3.75	—
OpenRouterHostviewing	$1.25	$0.200	$2.50	$3.75	—

What SpaceXAI: Grok 4.3 costs in practice

Estimated cost at common usage volumes
Workload	Input tokens	Output tokens	Estimated cost
Short chat turn	1,000	500	$0.0025
Document summary	50,000	2,000	$0.07
1M tokens in, 200K out	1,000,000	200,000	$1.75

Estimates use the standard tier and ignore caching discounts, so real bills with repeated prompt prefixes are typically lower.

Common questions

How much does SpaceXAI: Grok 4.3 cost per 1M tokens?: SpaceXAI: Grok 4.3 costs $1.25 per 1M input tokens and $2.50 per 1M output tokens on the standard tier. Cached input is $0.200 per 1M.
What is SpaceXAI: Grok 4.3's context window?: SpaceXAI: Grok 4.3 accepts up to 1,000,000 tokens in a single request, and can return up to 900,000 output tokens.
Is there a cheaper OpenRouter model than SpaceXAI: Grok 4.3?: Yes. OpenAI: GPT-3.5 Turbo is $0.500 per 1M input tokens versus $1.25 for SpaceXAI: Grok 4.3, with a 16,385 token context window.
Where does this SpaceXAI: Grok 4.3 price come from?: From the OpenRouter catalogue, because OpenRouter does not publish machine-readable pricing. OpenRouter is a reseller, so its rate can differ from OpenRouter's own — verify before committing spend.

Head-to-head comparisons

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Other OpenRouter models

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