Claude Sonnet 4.5 vs Qwen3.5 Plus

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

Benchmark data for one or both models is coming soon. This page currently shows metadata and pricing where BenchLM has it, and score-level comparisons will populate as public benchmark results land.
Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

Claude Sonnet 4.5· Qwen3.5 Plus

Quick Verdict

Benchmark data for Claude Sonnet 4.5 and Qwen3.5 Plus is coming soon on BenchLM.

BenchLM does not have sourced benchmark coverage for Qwen3.5 Plus yet. This comparison is currently limited to metadata such as context window, reasoning mode, and pricing where available.

Qwen3.5 Plus has the larger context window at 1M, compared with 200K for Claude Sonnet 4.5.

Operational tradeoffs

Price$3.00 / $15.00Pricing unavailable
SpeedN/AN/A
TTFTN/AN/A
Context200K1M

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 Plus
Agentic
Terminal-Bench 2.050%
BrowseComp74%
OSWorld-Verified61.4%
Coding
HumanEval87%
SWE-bench Verified77.2%
LiveCodeBench53%
SWE-bench Pro60%
SWE-Rebench60%
Multimodal & Grounded
MMMU-Pro95%
OfficeQA Pro87%
Reasoning
MuSR89%
BBH88%
LongBench v282%
MRCRv281%
ARC-AGI-213.6%
Knowledge
MMLU95%
GPQA83.4%
SuperGPQA91%
MMLU-Pro84%
HLE21%
FrontierScience84%
SimpleQA91%
Instruction Following
IFEval90%
Multilingual
MGSM91%
MMLU-ProX87%
Mathematics
AIME 202397%
AIME 202499%
AIME 202587%
HMMT Feb 202393%
HMMT Feb 202495%
HMMT Feb 202594%
BRUMO 202596%
MATH-50088%
Frequently Asked Questions (3)

Can I compare Claude Sonnet 4.5 and Qwen3.5 Plus on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but the sourced benchmark breakdown for this comparison is still coming soon.

Why does this comparison show “coming soon”?

BenchLM only shows category winners and benchmark-level calls when we have sourced results that can be compared fairly. For these models, the public benchmark coverage is not complete enough yet.

What data is available for Claude Sonnet 4.5 and Qwen3.5 Plus today?

Claude Sonnet 4.5: $3.00 input / $15.00 output per 1M tokens Qwen3.5 Plus: Pricing unavailable Both model pages still include creator, context window, reasoning mode, and other metadata while benchmark coverage fills in.

Last updated: March 31, 2026

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