Compare

Grok 4.5 vs Grok-4.20-Multi-Agent

List rates and scores as of 2026-09-20. Lower $/MTok is cheaper. Higher scores rank better. Input edge: Grok-4.20-Multi-Agent Output edge: Grok-4.20-Multi-Agent

Model A

Grok 4.5

xAI

xai/grok-4-5

reasoningtools

List input$2
List output$6
Context1M
Offers31
Arena code1555
AA intelligence38.8
AA coding72.4
AA agentic41.2

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

Model B

Grok-4.20-Multi-Agent

xAI

xai/grok-4.20-multi-agent

reasoningtools

List input$1.25
List output$2.50
Context2M
Offers11
Arena codeN/A
AA intelligenceN/A
AA codingN/A
AA agenticN/A

On plans: SuperGrok Heavy

Score sources on /benchmarks.