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Grok 4.3 vs Grok 4.20 (Reasoning)

List rates and scores as of . Cheaper is lower $/MTok. Higher scores win.

Model A

Grok 4.3

xai/grok-4.3
reasoningtools
  • List input$1.25
  • List output$2.50
  • Context1M
  • Offers23
  • AA intelligence37.6
  • AA coding42.2
  • AA agentic24.1

On plans: SuperGrok Heavy, SuperGrok Plus

Model B

Grok 4.20 (Reasoning)

xai/grok-4.20-reasoning
reasoningtools
  • List input$1.25
  • List output$2.50
  • Context2M
  • Offers6
  • AA intelligence—
  • AA coding—
  • AA agentic—

On plans: SuperGrok, SuperGrok Plus

Score sources on /benchmarks.