GPT-5 Codex vs Quasar Alpha
Compare GPT-5 Codex by OpenAI against Quasar Alpha by OpenRouter, tested across 6 shared challenges. Updated February 2026.
FAQ
Loading share button...
GPT-5 CodexvsQuasar Alpha
6 challenges
Why GPT-5 Codex?
6 months newerSep 2025
Why Quasar Alpha?
No standout advantages
Favorites
GPT-5 CodexQuasar Alpha
6 / 6
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
Quasar Alpha
Vote
2 / 6
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
GPT-5 Codex
Quasar Alpha
Vote
3 / 6
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
GPT-5 Codex
Quasar Alpha
Vote
4 / 6
Linear App Cloneweb design
Tests an AI's ability to replicate an existing UI with Tailwind CSS
GPT-5 Codex
Quasar Alpha
Vote
5 / 6
Interactive Catan Boardweb design
Tests an AI's ability to create interactive web elements
GPT-5 Codex
Quasar Alpha
Vote
6 / 6
World Map SVGimage generation
Tests an AI's ability to create a detailed world map in SVG format
GPT-5 Codex
Quasar Alpha
Vote
6 of 6