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Grok 4.3 Pricing

xAI ยท Grok 4 ยท Live

Grok 4.3 costs $1.25 per million input tokens and $2.5 per million output tokens on the xAI API. Cached input reads are billed at $0.2 per million tokens. It supports a 1,000,000-token context window and up to 32,768 output tokens per request. The model supports extended reasoning, image input, tool use, long context. Released April 30, 2026. Pricing verified November 1, 2026.

Grok 4.3 API pricing

Grok 4.3 API pricing is $1.25 per million input tokens and $2.5 per million output tokens, verified November 1, 2026.

Input (per 1M tokens)
$1.25
Output (per 1M tokens)
$2.5
Cached input (per 1M tokens)
$0.2
Context window
1,000,000 tokens
Max output
32,768 tokens
Released
April 30, 2026
Estimate your Grok 4.3 cost

Capabilities

Grok 4.3 supports extended reasoning, image input, tool use, long context.

Extended reasoningImage inputTool useLong context

Grok 4.3 API pricing has not changed since June 28, 2026.

Price-stable since June 28, 2026.

Frequently asked questions

Short answers to the most common questions about Grok 4.3 pricing, limits, and capabilities.

Notes

Current xAI flagship, launched April 30, 2026. 1M context window with reasoning mode support. Priced aggressively vs OpenAI/Anthropic at the flagship tier. [2026-09-28] Verification attempt produced no clear result โ€” recheck next run.