GPT-4o (Omni) vs Quasar Alpha

Compare GPT-4o (Omni) by OpenAI against Quasar Alpha by OpenRouter, in 7 community votes, quasar alpha wins 83% of head-to-head duels, context windows of 128K vs 1.0M, tested across 6 shared challenges. Updated February 2026.

In 7 community votes, Quasar Alpha wins 83% of head-to-head duels. Quasar Alpha leads in Web Design. Based on blind community voting from the RIVAL open dataset of 7+ human preference judgments for this pair.