DeepSeek R1 vs Qwen: Qwen3.5 Plus 2026-02-15
Compare DeepSeek R1 by DeepSeek against Qwen: Qwen3.5 Plus 2026-02-15 by Qwen, context windows of 128K vs 1.0M, tested across 52 shared challenges. Updated April 2026.
Which is better, DeepSeek R1 or Qwen: Qwen3.5 Plus 2026-02-15?
DeepSeek R1 and Qwen: Qwen3.5 Plus 2026-02-15 are both competitive models. DeepSeek R1 costs $0.55/M input tokens vs $0.4/M for Qwen: Qwen3.5 Plus 2026-02-15. Context windows: 128K vs 1000K tokens. Compare their real outputs side by side below.
Key Differences Between DeepSeek R1 and Qwen: Qwen3.5 Plus 2026-02-15
DeepSeek R1 is made by deepseek while Qwen: Qwen3.5 Plus 2026-02-15 is from qwen. DeepSeek R1 has a 128K token context window compared to Qwen: Qwen3.5 Plus 2026-02-15's 1000K. On pricing, DeepSeek R1 costs $0.55/M input tokens vs $0.4/M for Qwen: Qwen3.5 Plus 2026-02-15.
No community votes yet. On paper, Qwen: Qwen3.5 Plus 2026-02-15 has the edge — bigger model tier, newer, bigger context window.
Style Comparison
DeepSeek R1 uses 3.0x more transitions
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