Llama 4 Behemoth 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

Llama 4 Behemoth· Qwen3.5 Plus

Quick Verdict

Benchmark data for Llama 4 Behemoth 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 32K for Llama 4 Behemoth.

Operational tradeoffs

ProviderMetaAlibaba
PriceFree*Pricing unavailable
SpeedN/AN/A
TTFTN/AN/A
Context32K1M

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.

BenchmarkLlama 4 BehemothQwen3.5 Plus
Agentic
Terminal-Bench 2.033%
BrowseComp38%
OSWorld-Verified34%
Coding
HumanEval40%
SWE-bench Verified15%
LiveCodeBench13%
SWE-bench Pro15%
Multimodal & Grounded
MMMU-Pro60%
OfficeQA Pro49%
Reasoning
MuSR44%
BBH62%
LongBench v246%
MRCRv246%
Knowledge
MMLU48%
GPQA47%
SuperGPQA45%
MMLU-Pro54%
HLE3%
FrontierScience43%
SimpleQA46%
Instruction Following
IFEval68%
Multilingual
MGSM66%
MMLU-ProX61%
Mathematics
AIME 202348%
AIME 202450%
AIME 202549%
HMMT Feb 202344%
HMMT Feb 202446%
HMMT Feb 202545%
BRUMO 202547%
MATH-50060%
Frequently Asked Questions (3)

Can I compare Llama 4 Behemoth 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 Llama 4 Behemoth and Qwen3.5 Plus today?

Llama 4 Behemoth: $0.00 input / $0.00 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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