SpaceXAI: Grok 4.3

Pricing, context window and lifecycle for x-ai/grok-4.3, tracked from what the vendor publishes.

Price per million tokens

Input	$1.25
Output	$2.50
Cache price (read)	$0.200
Max price	$2.50

Facts

Model ID	x-ai/grok-4.3
Vendor	xAI
Token limit (context window)	1,000,000 tokens
Knowledge cutoff	-
End of life	none published

Supported parameters

include_reasoning, logprobs, max_tokens, reasoning, reasoning_effort, response_format, seed, structured_outputs, temperature, tool_choice, tools, top_logprobs, top_p

Other xAI models

x-ai/grok-4.20 $1.25 in / $2.50 out
x-ai/grok-4.20-multi-agent $1.25 in / $2.50 out
x-ai/grok-4.3:batch $1.00 in / $2.00 out
x-ai/grok-4.5 $2.00 in / $6.00 out
x-ai/grok-4.6 $2.00 in / $6.00 out
x-ai/grok-build-0.1 $1.00 in / $2.00 out

Change history

Every change we have observed since tracking began.

Detected	Change	Detail
2026-08-18 19:14	Param Change	removed frequency_penalty, presence_penalty, stop
2026-08-04 19:14	Meta Change

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