Claude Sonnet 4.5 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

Claude Sonnet 4.5· Qwen3.5-122B-A10B

Quick Verdict

Pick Qwen3.5-122B-A10B if you want the stronger benchmark profile. Claude Sonnet 4.5 only becomes the better choice if multimodal & grounded is the priority or you would rather avoid the extra latency and token burn of a reasoning model.

Qwen3.5-122B-A10B has the cleaner overall profile here, landing at 71 versus 69. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

Qwen3.5-122B-A10B's sharpest advantage is in coding, where it averages 76.3 against 60.8. The single biggest benchmark swing on the page is LiveCodeBench, 53% to 78.9%. Claude Sonnet 4.5 does hit back in multimodal & grounded, so the answer changes if that is the part of the workload you care about most.

Claude Sonnet 4.5 is also the more expensive model on tokens at $3.00 input / $15.00 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 Claude Sonnet 4.5 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 200K for Claude Sonnet 4.5.

Operational tradeoffs

Price$3.00 / $15.00Free*
SpeedN/AN/A
TTFTN/AN/A
Context200K262K

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.

BenchmarkClaude Sonnet 4.5Qwen3.5-122B-A10B
AgenticClaude Sonnet 4.5 wins
Terminal-Bench 2.050%49.4%
BrowseComp74%63.8%
OSWorld-Verified61.4%58%
tau2-bench79.5%
CodingQwen3.5-122B-A10B wins
HumanEval87%
SWE-bench Verified77.2%72%
LiveCodeBench53%78.9%
SWE-bench Pro60%
SWE-Rebench60%
Multimodal & GroundedClaude Sonnet 4.5 wins
MMMU-Pro95%76.9%
OfficeQA Pro87%
ReasoningClaude Sonnet 4.5 wins
MuSR89%
BBH88%
LongBench v282%60.2%
MRCRv281%
ARC-AGI-213.6%
KnowledgeQwen3.5-122B-A10B wins
MMLU95%
GPQA83.4%86.6%
SuperGPQA91%67.1%
MMLU-Pro84%86.7%
HLE21%
FrontierScience84%
SimpleQA91%
Instruction FollowingQwen3.5-122B-A10B wins
IFEval90%93.4%
MultilingualClaude Sonnet 4.5 wins
MGSM91%
MMLU-ProX87%82.2%
Mathematics
AIME 202397%
AIME 202499%
AIME 202587%
HMMT Feb 202393%
HMMT Feb 202495%
HMMT Feb 202594%
BRUMO 202596%
MATH-50088%
Frequently Asked Questions (8)

Which is better, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B is ahead overall, 71 to 69. The biggest single separator in this matchup is LiveCodeBench, where the scores are 53% and 78.9%.

Which is better for knowledge tasks, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for knowledge tasks in this comparison, averaging 81.6 versus 71.2. Inside this category, SuperGPQA is the benchmark that creates the most daylight between them.

Which is better for coding, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for coding in this comparison, averaging 76.3 versus 60.8. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for reasoning, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Claude Sonnet 4.5 has the edge for reasoning in this comparison, averaging 66.1 versus 60.2. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Claude Sonnet 4.5 has the edge for agentic tasks in this comparison, averaging 60 versus 56. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Claude Sonnet 4.5 has the edge for multimodal and grounded tasks in this comparison, averaging 91.4 versus 76.9. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Qwen3.5-122B-A10B has the edge for instruction following in this comparison, averaging 93.4 versus 90. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Claude Sonnet 4.5 or Qwen3.5-122B-A10B?

Claude Sonnet 4.5 has the edge for multilingual tasks in this comparison, averaging 88.4 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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