Grok 4.20 (Non-Reasoning) vs Nano Banana (Gemini 2.5 Flash Image 🍌)

xAI Grok 4.20 (Non-Reasoning)Google Nano Banana (Gemini 2.5 Flash Image 🍌)
VendorxAIGoogle
Context window2,000,00032,768
Max output2,000,00032,768
ReasoningNoYes
Tool callingYesNo
File inputYesYes
Inputtext, imagetext, image
Outputtextimage
Released2026-03-082025-08-26