DeepSeek-V3.1 vs Qwen3.5 27B: Specs & Benchmark Comparison

CharacteristicDeepSeek-V3.1Qwen3.5 27B
CompanyDeepSeekAlibaba
Release DateJanuary 9, 2025March 1, 2026
Parameters671B27B
MultimodalNoNo
Context (input)164K
Context (output)164K
Input Price / 1M$0.27
Output Price / 1M$1.00
Average Score0.80.9
Benchmarks
MMLU-Redux0.90.9

Visual Benchmark Comparison

DeepSeek-V3.1
Qwen3.5 27B
MMLU-Redux0.9 vs 0.9
0.9
0.9

Verdict

Qwen3.5 27B leads in 1 out of 2 comparison categories.

Overall Performance

Both models show comparable average scores: DeepSeek-V3.1 — 0.8, Qwen3.5 27B — 0.9.

Recency

Qwen3.5 27B is newer: released 3/1/2026 vs 1/9/2025.

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Frequently Asked Questions

Which is better for coding — DeepSeek-V3.1 or Qwen3.5 27B?
Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.
Which model is cheaper — DeepSeek-V3.1 or Qwen3.5 27B?
API pricing data is available on the individual model pages.
Which has a larger context window — DeepSeek-V3.1 or Qwen3.5 27B?
Context window data is available on the individual model pages.

The DeepSeek-V3.1 and Qwen3.5 27B comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the DeepSeek-V3.1 or Qwen3.5 27B page. See also the complete list of AI model comparisons.