DeepSeek R1 0528 vs Qwen: Qwen3.5 Plus 2026-02-15

Compare DeepSeek R1 0528 by DeepSeek against Qwen: Qwen3.5 Plus 2026-02-15 by Qwen, context windows of 164K vs 1.0M, tested across 53 shared challenges. Updated April 2026.

Which is better, DeepSeek R1 0528 or Qwen: Qwen3.5 Plus 2026-02-15?

DeepSeek R1 0528 and Qwen: Qwen3.5 Plus 2026-02-15 are both competitive models. DeepSeek R1 0528 costs $0/M input tokens vs $0.4/M for Qwen: Qwen3.5 Plus 2026-02-15. Context windows: 164K vs 1000K tokens. Compare their real outputs side by side below.

Key Differences Between DeepSeek R1 0528 and Qwen: Qwen3.5 Plus 2026-02-15

DeepSeek R1 0528 is made by deepseek while Qwen: Qwen3.5 Plus 2026-02-15 is from qwen. DeepSeek R1 0528 has a 164K token context window compared to Qwen: Qwen3.5 Plus 2026-02-15's 1000K. On pricing, DeepSeek R1 0528 costs $0/M input tokens vs $0.4/M for Qwen: Qwen3.5 Plus 2026-02-15.

Our Verdict
DeepSeek R1 0528
DeepSeek R1 0528
Qwen: Qwen3.5 Plus 2026-02-15
Qwen: Qwen3.5 Plus 2026-02-15

No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.

Too close to call
Writing DNA

Style Comparison

Similarity
88%

Qwen: Qwen3.5 Plus 2026-02-15 uses 10.0x more emoji

DeepSeek R1 0528
Qwen: Qwen3.5 Plus 2026-02-15
64%Vocabulary54%
10wSentence Length18w
0.30Hedging0.51
6.8Bold5.3
4.9Lists2.9
0.00Emoji0.10
0.40Headings0.75
0.00Transitions0.09
Based on 4 + 23 text responses
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DeepSeek R1 0528Qwen: Qwen3.5 Plus 2026-02-15

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

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