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Gemini 2.5 Flash Image (Nano Banana) vs Grok 4

A detailed comparison of pricing, benchmarks, and capabilities

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Key Takeaways

Gemini 2.5 Flash Image (Nano Banana) wins:

  • Cheaper input tokens
  • Cheaper output tokens

Grok 4 wins:

  • Larger context window
  • Faster response time
  • Higher intelligence benchmark
  • Better at coding
  • Better at math
  • Has reasoning mode
Price Advantage
Gemini 2.5 Flash Image (Nano Banana)
Benchmark Advantage
Grok 4
Context Window
Grok 4
Speed
Grok 4

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureGemini 2.5 Flash Image (Nano Banana)Grok 4
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyGemini 2.5 Flash Image (Nano Banana)Grok 4
LicenseProprietaryProprietary
AuthorGoogleXai
ReleasedOct 2025Jul 2025

Gemini 2.5 Flash Image (Nano Banana) Modalities

Input
imagetext
Output
imagetext

Grok 4 Modalities

Input
imagetext
Output
text

Frequently Asked Questions

Gemini 2.5 Flash Image (Nano Banana) has cheaper input pricing at $0.30/M tokens. Gemini 2.5 Flash Image (Nano Banana) has cheaper output pricing at $2.50/M tokens.
Gemini 2.5 Flash Image (Nano Banana) has a 32,768 token context window, while Grok 4 has a 256,000 token context window.
Gemini 2.5 Flash Image (Nano Banana) supports vision. Grok 4 supports vision.