GPT-5 Codex vs Gemini 2.5 Pro
Detailed comparison of capabilities, features, and performance.
Feature
GPT-5 Codex
Gemini 2.5 Pro
Model Image
AI Lab
OpenAI
Google
Context Size
400,000 tokens
1,048,756 tokens
Max Output Size
128,000 tokens
65,535 tokens
Frontier Model
Yes
Yes
Vision Support
Yes
Yes
Description
OpenAI's specialist coding model.
A powerful reasoning model for problem-solving tasks and multimodal capabilities.
Learn more about GPT-5 Codex
View detailed specifications and capabilities
View model details →Learn more about Gemini 2.5 Pro
View detailed specifications and capabilities
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