DeepSeek V3 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

DeepSeek V3· Qwen3.5-122B-A10B

Quick Verdict

Pick Qwen3.5-122B-A10B if you want the stronger benchmark profile. DeepSeek V3 only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.

Qwen3.5-122B-A10B is clearly ahead on the aggregate, 71 to 51. 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 39.2. The single biggest benchmark swing on the page is LiveCodeBench, 37.6% to 78.9%.

DeepSeek V3 is also the more expensive model on tokens at $0.27 input / $1.10 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Qwen3.5-122B-A10B. That is roughly Infinityx on output cost alone. Qwen3.5-122B-A10B is the reasoning model in the pair, while DeepSeek V3 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. Qwen3.5-122B-A10B gives you the larger context window at 262K, compared with 128K for DeepSeek V3.

Operational tradeoffs

Price$0.27 / $1.10Free*
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.

BenchmarkDeepSeek V3Qwen3.5-122B-A10B
Agentic
Terminal-Bench 2.049.4%
BrowseComp63.8%
OSWorld-Verified58%
tau2-bench79.5%
CodingQwen3.5-122B-A10B wins
LiveCodeBench37.6%78.9%
SWE-bench Verified42%72%
Multimodal & Grounded
MMMU-Pro76.9%
ReasoningQwen3.5-122B-A10B wins
LongBench v248.7%60.2%
KnowledgeQwen3.5-122B-A10B wins
GPQA59.1%86.6%
MMLU-Pro75.9%86.7%
SimpleQA24.9%
SuperGPQA67.1%
Instruction FollowingQwen3.5-122B-A10B wins
IFEval86.1%93.4%
Multilingual
MMLU-ProX82.2%
Mathematics
AIME 202439.2%
MATH-50090.2%
Frequently Asked Questions (5)

Which is better, DeepSeek V3 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B is ahead overall, 71 to 51. The biggest single separator in this matchup is LiveCodeBench, where the scores are 37.6% and 78.9%.

Which is better for knowledge tasks, DeepSeek V3 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for knowledge tasks in this comparison, averaging 81.6 versus 57.5. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, DeepSeek V3 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for coding in this comparison, averaging 76.3 versus 39.2. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for reasoning, DeepSeek V3 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for reasoning in this comparison, averaging 60.2 versus 48.7. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.

Which is better for instruction following, DeepSeek V3 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for instruction following in this comparison, averaging 93.4 versus 86.1. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Last updated: March 31, 2026

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