Grok Code Fast 1 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

Grok Code Fast 1· Qwen3.5 Plus

Quick Verdict

Benchmark data for Grok Code Fast 1 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 256K for Grok Code Fast 1.

Operational tradeoffs

ProviderxAIAlibaba
PricePricing unavailablePricing unavailable
Speed172 t/sN/A
TTFT2.81sN/A
Context256K1M

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.

BenchmarkGrok Code Fast 1Qwen3.5 Plus
Agentic
Terminal-Bench 2.059%
BrowseComp57%
OSWorld-Verified51%
Coding
HumanEval60%
SWE-bench Verified70.8%
LiveCodeBench80%
SWE-bench Pro42%
Multimodal & Grounded
MMMU-Pro40%
OfficeQA Pro63%
Reasoning
MuSR59%
BBH75%
LongBench v264%
MRCRv266%
Knowledge
MMLU64%
GPQA63%
SuperGPQA61%
MMLU-Pro65%
HLE7%
FrontierScience57%
SimpleQA61%
Instruction Following
IFEval79%
Multilingual
MGSM75%
MMLU-ProX73%
Mathematics
AIME 202364%
AIME 202466%
AIME 202565%
HMMT Feb 202360%
HMMT Feb 202462%
HMMT Feb 202561%
BRUMO 202563%
MATH-50073%
Frequently Asked Questions (3)

Can I compare Grok Code Fast 1 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 Grok Code Fast 1 and Qwen3.5 Plus today?

Grok Code Fast 1: Pricing unavailable 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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