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Grok 4.3

Rank #66 x-ai

x-ai/grok-4.3-20260430

Usage data date 2026-07-26 · updated daily

Usage and specs

Daily rank#66
Daily tokens87.4B
Daily requests12.6M
Daily change −6.8%
Context window1M
Released

What is Grok 4.3

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 accuracy. Reasoning can be configured between none/low/medium/high (default low) effort levels. It supports a 1 million token context window with no output token limit, making it well-suited for long-document analysis, deep research, and multi-step agentic tasks. Pricing is tiered: requests exceeding 200k total tokens are billed at a higher rate.

Grok 4.3 capabilities

Input: Text、Image、File   Output: Text

Reasoning output Reasoning Reasoning effort JSON output Structured outputs Tool choice Tool use

Grok 4.3 API pricing

Input · per 1M tokens$1.25
Output · per 1M tokens$2.50

List prices in USD; see each provider’s site for current terms.