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OpenAI

Gemini 2.5 Pro Preview 06-05 vs GPT-5 Codex

A detailed comparison of pricing, benchmarks, and capabilities

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Key Takeaways

Gemini 2.5 Pro Preview 06-05 wins:

  • Larger context window
  • Better at coding

GPT-5 Codex wins:

  • Faster response time
  • Higher intelligence benchmark
  • Better at math
Price Advantage
Gemini 2.5 Pro Preview 06-05
Benchmark Advantage
GPT-5 Codex
Context Window
Gemini 2.5 Pro Preview 06-05
Speed
GPT-5 Codex

Pricing Comparison

Benchmark Comparison

Context & Performance

Capabilities

Feature Comparison

FeatureGemini 2.5 Pro Preview 06-05GPT-5 Codex
Vision (Image Input)
Tool/Function Calls
Reasoning Mode
Audio Input
Audio Output
PDF Input
Prompt Caching
Web Search

License & Release

PropertyGemini 2.5 Pro Preview 06-05GPT-5 Codex
LicenseProprietaryProprietary
AuthorGoogleOpenAI
ReleasedJun 2025Sep 2025

Gemini 2.5 Pro Preview 06-05 Modalities

Input
fileimagetextaudio
Output
text

GPT-5 Codex Modalities

Input
textimage
Output
text

Frequently Asked Questions

Gemini 2.5 Pro Preview 06-05 has cheaper input pricing at $1.25/M tokens. Gemini 2.5 Pro Preview 06-05 has cheaper output pricing at $10.00/M tokens.
Gemini 2.5 Pro Preview 06-05 scores higher on coding benchmarks with a score of 46.7, compared to GPT-5 Codex's score of 38.9.
Gemini 2.5 Pro Preview 06-05 has a 1,048,576 token context window, while GPT-5 Codex has a 400,000 token context window.
Gemini 2.5 Pro Preview 06-05 supports vision. GPT-5 Codex supports vision.