Grok 4.3 reasoning

openrouter
xai
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...

Capabilities

Context Window 1M tokens
Max Output 0 tokens
Inputs
Outputs

Pricing (per 1M tokens)

Input $1.25
Output $2.50
Cache Read $0.20
Cache Write -

Supported Parameters

frequency_penaltyinclude_reasoninglogprobsmax_tokenspresence_penaltyreasoningresponse_formatseedstopstructured_outputstemperaturetool_choicetoolstop_logprobstop_p