DeepSeek V3.1 vs Qwen3.6 Plus

Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.

Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

DeepSeek V3.1· Qwen3.6 Plus

Quick Verdict

Pick Qwen3.6 Plus if you want the stronger benchmark profile. DeepSeek V3.1 only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.

Qwen3.6 Plus is clearly ahead on the aggregate, 69 to 41. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Qwen3.6 Plus's sharpest advantage is in coding, where it averages 64.9 against 14.5. The single biggest benchmark swing on the page is SWE-bench Verified, 13% to 78.8%.

Qwen3.6 Plus is the reasoning model in the pair, while DeepSeek V3.1 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Qwen3.6 Plus gives you the larger context window at 1M, compared with 128K for DeepSeek V3.1.

Operational tradeoffs

PriceFree*Free*
SpeedN/AN/A
TTFTN/AN/A
Context128K1M

Decision framing

BenchLM keeps the benchmark table and the operator tradeoffs on the same page so a better score does not hide a materially slower, pricier, or smaller-context model.

Runtime metrics show N/A when BenchLM does not have a sourced snapshot for that exact model. The scoring rules and freshness policy are documented on the methodology page.

BenchmarkDeepSeek V3.1Qwen3.6 Plus
AgenticQwen3.6 Plus wins
Terminal-Bench 2.029%61.6%
BrowseComp39%
OSWorld-Verified33%62.5%
Claw-Eval58.7%
QwenClawBench57.2%
QwenWebBench1502
TAU3-Bench70.7%
VITA-Bench44.3%
DeepPlanning41.5%
Toolathlon39.8%
MCP Atlas48.2%
MCP-Tasks74.1%
WideResearch74.3%
CodingQwen3.6 Plus wins
HumanEval25%
SWE-bench Verified13%78.8%
LiveCodeBench15%
SWE-bench Pro15%56.6%
SWE Multilingual73.8%
LiveCodeBench v687.1%
NL2Repo37.9%
Multimodal & GroundedQwen3.6 Plus wins
MMMU-Pro35%78.8%
OfficeQA Pro45%
MMMU86.0%
RealWorldQA85.4%
OmniDocBench 1.591.2%
Video-MME (with subtitle)87.8%
Video-MME (w/o subtitle)84.2%
MathVision88.0%
We-Math89.0%
DynaMath88.0%
MStar83.3%
SimpleVQA67.3%
ChatCVQA81.5%
MMLongBench-Doc62.0%
CC-OCR83.4%
AI2D_TEST94.4%
CountBench97.6%
RefCOCO (avg)93.5%
ODINW1351.8%
ERQA65.7%
VideoMMMU84.0%
MLVU (M-Avg)86.7%
ScreenSpot Pro68.2%
ReasoningQwen3.6 Plus wins
MuSR29%
BBH61%
LongBench v246%62%
MRCRv248%
AI-Needle68.3%
KnowledgeQwen3.6 Plus wins
MMLU33%
GPQA32%90.4%
SuperGPQA30%71.6%
MMLU-Pro53%88.5%
HLE2%28.8%
FrontierScience37%
SimpleQA31%
MMLU-Redux94.5%
C-Eval93.3%
Instruction FollowingQwen3.6 Plus wins
IFEval67%94.3%
IFBench74.2%
MultilingualQwen3.6 Plus wins
MGSM64%
MMLU-ProX59%84.7%
NOVA-6357.9%
INCLUDE85.1%
PolyMath77.4%
VWT2k-lite84.3%
MAXIFE88.2%
Mathematics
AIME 202333%
AIME 202435%
AIME 202534%
HMMT Feb 202329%
HMMT Feb 202431%
HMMT Feb 202530%
BRUMO 202532%
MATH-50059%
AIME2695.3%
HMMT Feb 202596.7%
HMMT Nov 202594.6%
HMMT Feb 202687.8%
MMAnswerBench83.8%
Frequently Asked Questions (8)

Which is better, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus is ahead overall, 69 to 41. The biggest single separator in this matchup is SWE-bench Verified, where the scores are 13% and 78.8%.

Which is better for knowledge tasks, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus has the edge for knowledge tasks in this comparison, averaging 66 versus 30.3. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus has the edge for coding in this comparison, averaging 64.9 versus 14.5. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for reasoning, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus has the edge for reasoning in this comparison, averaging 62 versus 42.1. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus has the edge for agentic tasks in this comparison, averaging 62 versus 32.9. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus has the edge for multimodal and grounded tasks in this comparison, averaging 78.8 versus 39.5. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus has the edge for instruction following in this comparison, averaging 94.3 versus 67. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, DeepSeek V3.1 or Qwen3.6 Plus?

Qwen3.6 Plus has the edge for multilingual tasks in this comparison, averaging 84.7 versus 60.8. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: April 2, 2026

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