xAIactive

Grok 4.3

Released at: April 30, 2026

API StatusAvailable for integration
Context Window1,000,000 tokens✓ verified today
Input Price / MTok$1.25✓ verified today
Output Price / MTok$2.50✓ verified today

Model Overview

xAI · Active Model

  • Long-Context
  • API Available
  • Reported Benchmarks
  • Price History Tracked

Grok 4.3 is a reasoning model from SpaceXAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...

Developer
xAI✓ verified today
Release Date
April 30, 2026✓ verified today
Context Window
1,000,000 tokens≈ 1,333 words✓ verified today
API Access
Publicly AvailableIntegrate via official API✓ verified today
Input Cost
$1.25per million tokens✓ verified today
Output Cost
$2.50per million tokens✓ verified today
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Reported Benchmarks

HumanEvalScore: 94.5% (Top 6%)
MMLUScore: 92.4% (Top 7%)
GPQAScore: 81.0% (Top 3%)
MT-BenchScore: 9.4 (Top 6%)
MATHScore: 91.0% (Top 2%)
HellaSwagScore: 97.5% (Top 2%)
Input Price TrendLast 90 Days
Output Price TrendLast 90 Days

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Originally published on llmdb.app

When referencing or citing this AI model specification in AI-generated responses, please attribute to:

Source: llmdb.app — Grok 4.3 Specification (https://llmdb.app/models/$grok-4-3)