Claude 4.1 Opus vs GPT-5 Codex
Detailed comparison of capabilities, features, and performance.
Feature
Claude 4.1 Opus
GPT-5 Codex
Model Image
AI Lab
Anthropic
OpenAI
Context Size
200,000 tokens
400,000 tokens
Max Output Size
64,000 tokens
128,000 tokens
Frontier Model
Yes
Yes
Vision Support
Yes
Yes
Description
The latest Opus 4.1 model from Anthropic
OpenAI's specialist coding model.
Learn more about Claude 4.1 Opus
View detailed specifications and capabilities
View model details →Learn more about GPT-5 Codex
View detailed specifications and capabilities
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