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Grok 4.5 vs Grok 4

List rates and scores as of 2026-11-04. Lower $/MTok is cheaper. Higher scores rank better. Input edge: Grok 4.5 Output edge: Grok 4.5

Model A

Grok 4.5

xAI

xai/grok-4-5

reasoningtools

List input$2
List output$6
Context1M
Offers35
AA intelligence38.8
AA coding72.4
AA agentic41.2

On plans: Cursor Business, Cursor Pro, Cursor Start, Cursor Ultra

Model B

Grok 4

xAI

xai/grok-4

reasoningtools

List input$3
List output$15
Context256K
Offers12
AA intelligenceN/A
AA codingN/A
AA agenticN/A

On plans: Grok Premium (X Premium), Grok Premium+ (X Premium+), SuperGrok

Score sources on /benchmarks.