What is the difference between GPT-5 Codex and Llama 4 Scout?

GPT-5 Codex is developed by OpenAI while Llama 4 Scout is developed by Meta AI. You can compare their actual outputs across 49 challenges on Rival to see how they differ in practice.

Which is better, GPT-5 Codex or Llama 4 Scout?

It depends on your use case. GPT-5 Codex and Llama 4 Scout each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 49 challenges so you can judge which fits your needs best.

How can I compare GPT-5 Codex and Llama 4 Scout on Rival?

This page shows a side-by-side comparison of GPT-5 Codex and Llama 4 Scout across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

Updated Sep 2025

GPT-5 CodexvsLlama 4 Scout

GPT-5 Codex is the newer model, released after Llama 4 Scout.

GPT-5 Codex and Llama 4 Scout compared across 49 shared prompts
Spec	GPT-5 Codex	Llama 4 Scout
Input price	—	$0.25/M tokens
Output price	—	$0.5/M tokens
Context window	—	10.0M tokens
Weights	—	Open
Free API (OpenRouter)	No	No
Released	Sep 2025	Apr 2025
SWE-bench Verified	74.5%	54.6%