DeepSeekMath V2 vs Qwen3.5-122B-A10B

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

Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

DeepSeekMath V2· Qwen3.5-122B-A10B

Quick Verdict

Pick Qwen3.5-122B-A10B if you want the stronger benchmark profile. DeepSeekMath V2 only becomes the better choice if reasoning is the priority.

Qwen3.5-122B-A10B is clearly ahead on the aggregate, 71 to 61. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Qwen3.5-122B-A10B's sharpest advantage is in coding, where it averages 76.3 against 46.9. The single biggest benchmark swing on the page is LiveCodeBench, 44% to 78.9%. DeepSeekMath V2 does hit back in reasoning, so the answer changes if that is the part of the workload you care about most.

Qwen3.5-122B-A10B gives you the larger context window at 262K, compared with 128K for DeepSeekMath V2.

Operational tradeoffs

PriceFree*Free*
SpeedN/AN/A
TTFTN/AN/A
Context128K262K

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.

BenchmarkDeepSeekMath V2Qwen3.5-122B-A10B
AgenticDeepSeekMath V2 wins
Terminal-Bench 2.065%49.4%
BrowseComp66%63.8%
OSWorld-Verified61%58%
tau2-bench79.5%
CodingQwen3.5-122B-A10B wins
HumanEval72%
SWE-bench Verified45%72%
LiveCodeBench44%78.9%
SWE-bench Pro51%
Multimodal & GroundedQwen3.5-122B-A10B wins
MMMU-Pro64%76.9%
OfficeQA Pro73%
ReasoningDeepSeekMath V2 wins
MuSR75%
BBH86%
LongBench v275%60.2%
MRCRv272%
KnowledgeQwen3.5-122B-A10B wins
MMLU80%
GPQA79%86.6%
SuperGPQA77%67.1%
MMLU-Pro74%86.7%
HLE18%
FrontierScience73%
SimpleQA77%
Instruction FollowingQwen3.5-122B-A10B wins
IFEval83%93.4%
MultilingualDeepSeekMath V2 wins
MGSM87%
MMLU-ProX80%82.2%
Mathematics
AIME 202380%
AIME 202482%
AIME 202581%
HMMT Feb 202376%
HMMT Feb 202478%
HMMT Feb 202577%
BRUMO 202579%
MATH-50090%
Frequently Asked Questions (8)

Which is better, DeepSeekMath V2 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B is ahead overall, 71 to 61. The biggest single separator in this matchup is LiveCodeBench, where the scores are 44% and 78.9%.

Which is better for knowledge tasks, DeepSeekMath V2 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for knowledge tasks in this comparison, averaging 81.6 versus 62.3. Inside this category, MMLU-Pro is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeekMath V2 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for coding in this comparison, averaging 76.3 versus 46.9. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for reasoning, DeepSeekMath V2 or Qwen3.5-122B-A10B?

DeepSeekMath V2 has the edge for reasoning in this comparison, averaging 74 versus 60.2. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, DeepSeekMath V2 or Qwen3.5-122B-A10B?

DeepSeekMath V2 has the edge for agentic tasks in this comparison, averaging 63.9 versus 56. 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, DeepSeekMath V2 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for multimodal and grounded tasks in this comparison, averaging 76.9 versus 68.1. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, DeepSeekMath V2 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for instruction following in this comparison, averaging 93.4 versus 83. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, DeepSeekMath V2 or Qwen3.5-122B-A10B?

DeepSeekMath V2 has the edge for multilingual tasks in this comparison, averaging 82.5 versus 82.2. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: March 31, 2026

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