Grok 4.3 API Pricing
Short answer
Grok 4.3 costs $1.25 per 1M input tokens and $2.50 per 1M output tokens . Context window: 200K (Foundry cap). Last verified 2026-06-17 from azure.microsoft.com. Confidence: Auto.
Grok 4.3 is xAI's flagship for reasoning and tool-calling agents, with an unusually low output-to-input price ratio.
Input
$1.25 /1M
Output
$2.50 /1M
Cached input
— /1M
Input pricing$1.25
Output pricing$2.50
Limits & capabilities
Context window200K (Foundry cap)
Max output—
Modalitytext + image input, text output
ChannelAzure AI Foundry
ProviderxAI
Best for
ReasoningTool callingAgents
Available on Microsoft Foundry (context capped at 200K). Azure has historically marked up Grok — verify the Azure rate card before relying on parity. Official pricing lists cached input at $0.20/1M. Prompts over 200K total tokens bill at a higher (unpublished) rate. Batch 50% off. Also available on AWS Bedrock (price unverified).
Last checked Auto