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Grok 4.3

Cheapest long-context option in the family.

currentxAI ↗Verified 2026-08-13

1M

context

Specifications

Context1Msource · as of 2026-08-13
Input ($/Mtok)$1.25source · as of 2026-08-13
Output ($/Mtok)$2.5source · as of 2026-08-13
LicenceProprietary
Model IDgrok-4.3source · as of 2026-08-13

Official links

Grok 4.3 model pagexAI official site

What matters

  • Retired model IDs now redirect here
  • Half the price of Grok 4.5/4.6

Best for long context on a budget.

Compare with

All 5 side by side →

Grok 4.3 vs Claude Fable 5 →Grok 4.3 vs Claude Opus 5 →Grok 4.3 vs GPT-5.6 Sol →Grok 4.3 vs Gemini 3.1 Pro →Grok 4.3 vs Claude Sonnet 5 →

Also in Language Models

Claude Fable 5 · AnthropicClaude Opus 5 · AnthropicGPT-5.6 Sol · OpenAIGemini 3.1 Pro · GoogleClaude Sonnet 5 · Anthropic