Claude Opus 4.5 vs Quasar Alpha
Compare Claude Opus 4.5 by Anthropic against Quasar Alpha by OpenRouter, tested across 6 shared challenges. Updated February 2026.
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Claude Opus 4.5vsQuasar Alpha
6 challenges
Why Claude Opus 4.5?
8 months newerNov 2025
Why Quasar Alpha?
No standout advantages
Favorites
Claude Opus 4.5Quasar Alpha
6 / 6
SVG Layout Challengeimage generation
Tests an AI's ability to generate vector graphics
Quasar Alpha
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2 / 6
Xbox Controller SVG Artimage generation
Tests an AI's ability to create detailed SVG illustrations of gaming hardware
Claude Opus 4.5
Quasar Alpha
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3 / 6
Minimalist Landing Pageweb design
Tests an AI's ability to generate a complete, working landing page
Claude Opus 4.5
Quasar Alpha
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4 / 6
Linear App Cloneweb design
Tests an AI's ability to replicate an existing UI with Tailwind CSS
Claude Opus 4.5
Quasar Alpha
Vote
5 / 6
Interactive Catan Boardweb design
Tests an AI's ability to create interactive web elements
Claude Opus 4.5
Quasar Alpha
Vote
6 / 6
World Map SVGimage generation
Tests an AI's ability to create a detailed world map in SVG format
Claude Opus 4.5
Quasar Alpha
Vote
6 of 6