Claude Code vs. Codex: Why This AI Model Comparison Is Meaningless
Claude Code is not a real model from Anthropic, and OpenAI’s Codex is an outdated tool no longer used by GitHub Copilot. Here’s why their comparison is...
A common online question asks how Anthropic’s "Claude Code" stacks up against OpenAI’s Codex—but this comparison is moot for two key reasons: one model doesn’t exist, and the other is obsolete.
First, Claude Code is not an official product from Anthropic. The company has never released a dedicated code-focused model under that name. While Claude 5 Sonnet, Anthropic’s current flagship model, can handle basic code writing tasks, there’s no standalone "Claude Code" version. Checking Anthropic’s official website confirms no such model exists, suggesting the name may be a misnomer or online rumor.
Second, OpenAI’s Codex is a relic. Once a backbone of GitHub Copilot, Codex has been phased out. GitHub now uses newer models like Microsoft’s Phi-3 and OpenAI’s GPT-4o to power Copilot, making Codex irrelevant in today’s AI landscape.
To put it simply, comparing Claude Code and Codex is like asking if the iPhone 16 Pro is better than a non-existent "Nokia Symbian Pro"—it’s a meaningless question because one side isn’t real, and the other is outdated.
Sources
- ZOL Ask: Original Discussion Thread