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xAI: Grok 4.3
x-ai/grok-4.3
VisionTool useJSONReasoningStreaming
Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...
Pricing
Input
$1.25 / 1M
Output
$2.50 / 1M
Specs
Context
1,000,000 tokens
Input
text, image
Output
text
Released: 2026-04
Supported parameters
frequency_penaltyinclude_reasoninglogprobsmax_tokenspresence_penaltyreasoningresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_logprobstop_p