Qwen: Qwen3.5 Plus 2026-02-15 vs ChatGPT-4o (March 2025)

Compare Qwen: Qwen3.5 Plus 2026-02-15 by Qwen against ChatGPT-4o (March 2025) by OpenAI, in 1 community votes, qwen: qwen3.5 plus 2026-02-15 wins 100% of head-to-head duels, context windows of 1.0M vs 128K, tested across 32 shared challenges. Updated February 2026.

In 1 community votes, Qwen: Qwen3.5 Plus 2026-02-15 wins 100% of head-to-head duels. Based on blind community voting from the RIVAL open dataset of 1+ human preference judgments for this pair.