Price Per TokenPrice Per Token
Google
Google
vs
Google
Google

Gemini 2.5 Flash Preview 09-2025 vs Gemini 3 Pro Preview

A detailed comparison of pricing, benchmarks, and capabilities

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Key Takeaways

Gemini 2.5 Flash Preview 09-2025 wins:

  • Cheaper input tokens
  • Cheaper output tokens

Gemini 3 Pro Preview wins:

  • Faster response time
  • Higher intelligence benchmark
  • Better at coding
  • Better at math
Price Advantage
Gemini 2.5 Flash Preview 09-2025
Benchmark Advantage
Gemini 3 Pro Preview
Context Window
Gemini 3 Pro Preview
Speed
Gemini 3 Pro Preview

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureGemini 2.5 Flash Preview 09-2025Gemini 3 Pro Preview
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyGemini 2.5 Flash Preview 09-2025Gemini 3 Pro Preview
LicenseProprietaryProprietary
AuthorGoogleGoogle
ReleasedUnknownNov 2025

Gemini 2.5 Flash Preview 09-2025 Modalities

Input
textimageaudiovideo
Output
text

Gemini 3 Pro Preview Modalities

Input
textimagefileaudiovideo
Output
text

Related Comparisons

Compare Gemini 2.5 Flash Preview 09-2025 with:

Compare Gemini 3 Pro Preview with:

Frequently Asked Questions

Gemini 2.5 Flash Preview 09-2025 has cheaper input pricing at $0.30/M tokens. Gemini 2.5 Flash Preview 09-2025 has cheaper output pricing at $2.50/M tokens.
Gemini 3 Pro Preview scores higher on coding benchmarks with a score of 46.5, compared to Gemini 2.5 Flash Preview 09-2025's score of 22.1.
Gemini 2.5 Flash Preview 09-2025 has a 1,048,576 token context window, while Gemini 3 Pro Preview has a 1,048,576 token context window.
Gemini 2.5 Flash Preview 09-2025 supports vision. Gemini 3 Pro Preview supports vision.