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Inception
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Gemini 3 Pro Preview vs Mercury 2

A detailed comparison of pricing, benchmarks, and capabilities

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Key Takeaways

Gemini 3 Pro Preview wins:

  • Larger context window
  • Higher intelligence benchmark
  • Better at coding
  • Better at math
  • Supports vision
  • Has reasoning mode

Mercury 2 wins:

  • Cheaper input tokens
  • Cheaper output tokens
  • Faster response time
Price Advantage
Mercury 2
Benchmark Advantage
Gemini 3 Pro Preview
Context Window
Gemini 3 Pro Preview
Speed
Mercury 2

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureGemini 3 Pro PreviewMercury 2
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyGemini 3 Pro PreviewMercury 2
LicenseProprietaryOpen Source
AuthorGoogleInception
ReleasedNov 2025Mar 2026

Gemini 3 Pro Preview Modalities

Input
textimagefileaudiovideo
Output
text

Mercury 2 Modalities

Input
text
Output
text

Frequently Asked Questions

Mercury 2 has cheaper input pricing at $0.25/M tokens. Mercury 2 has cheaper output pricing at $0.75/M tokens.
Gemini 3 Pro Preview scores higher on coding benchmarks with a score of 46.5, compared to Mercury 2's score of 30.6.
Gemini 3 Pro Preview has a 1,048,576 token context window, while Mercury 2 has a 128,000 token context window.
Gemini 3 Pro Preview supports vision. Mercury 2 does not support vision.