Model comparison

GPT-4.1 vs Qwen3.5 397B-A17B

Qwen3.5 397B-A17B is the stronger model overall, scoring 46.0 to 35.9 on the Noometry Index.

Last verified . 27 shared benchmarks.

GPT-4.1 OpenAI

35.9

Rank #219 Confirmed

Qwen3.5 397B-A17B Alibaba (Qwen)

46.0

Rank #67 Confirmed

Summary

  • They share 27 benchmarks with published results for both. GPT-4.1 scores higher in 1 category and Qwen3.5 397B-A17B in 9 categories; 10 gaps are clear of the uncertainty.
  • The widest gap is in math, where Qwen3.5 397B-A17B leads 46.1 to 22.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 38.3% for GPT-4.1 and 88.9% for Qwen3.5 397B-A17B.
  • Qwen3.5 397B-A17B is cheaper at $0.60 / $3.60 per million input/output tokens, against $2 / $8 for GPT-4.1.
  • GPT-4.1 accepts more context: 1.05M tokens versus 262K.
  • Qwen3.5 397B-A17B has downloadable open weights; the other is API-only.

Side by side

GPT-4.1 and Qwen3.5 397B-A17B specifications
GPT-4.1Qwen3.5 397B-A17B
ProviderOpenAIAlibaba (Qwen)
Noometry Index35.946.0
Released2025-04-142026-02-01
WeightsProprietaryOpen
Context window1.05M262K
Max output33K66K
Input $ / M tokens$2$0.60
Output $ / M tokens$8$3.60
Results tracked5236

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Category by category

Coding Qwen3.5 397B-A17B leads

GPT-4.1: 34.4 (#238), Qwen3.5 397B-A17B: 42.0 (#114)

Coding benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
LMArena Coding13911465
SWE-bench Verified48.5%—
SWE-bench Verified (bash only)39.6%—
Aider Polyglot52.4%—
LMArena WebDev—1400
WeirdML39%—
CadEval42%—
ALE-Bench558.1—

Agentic & Tool Use GPT-4.1 leads

GPT-4.1: 34.7 (#43), Qwen3.5 397B-A17B: 33.3 (#53)

Agentic & Tool Use benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
APEX-Agents—24.9%
Berkeley Function Calling Leaderboard54%—
τ²-bench Airline—81.5%
τ²-bench Banking—9.8%
τ²-bench Retail—84.4%
τ²-bench Telecom—97.8%

Reasoning Qwen3.5 397B-A17B leads

GPT-4.1: 11.7 (#339), Qwen3.5 397B-A17B: 34.5 (#70)

Reasoning benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
Kagi LLM Benchmark52.3%73.7%
Chess Puzzles6%13%
LMArena Hard Prompts13841448
DTBench68.3%87.5%
LMCA25.6%37.9%
Epoch Capabilities Index136.78146.65
ARC-AGI-20.4%—
SimpleBench27%—
NYT Connections (extended)—58.9%
ARC-AGI-15.5%—
EnigmaEval2.2%—
Thematic Generalization—65.1%
Mystery Game Puzzles—18%
ForecastBench61.5—

Math Qwen3.5 397B-A17B leads

GPT-4.1: 22.3 (#280), Qwen3.5 397B-A17B: 46.1 (#73)

Math benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
FrontierMath (Tiers 1-3)6%31.2%
OTIS Mock AIME 2024-202538.3%88.9%
LMArena Math13701454
Omni-MATH47.1%—
MATH Level 583%—
FrontierMath (Feb 2025 set)5.5%—
FrontierMath Tier 4 (v1)0%—

Knowledge Qwen3.5 397B-A17B leads

GPT-4.1: 37.1 (#160), Qwen3.5 397B-A17B: 53.3 (#58)

Knowledge benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
GPQA Diamond66.9%86.4%
LMArena Expert13641462
Humanity's Last Exam5.4%—
SimpleQA Verified31.1%—
MMLU-Pro81.1%—
Vectara Hallucination Rate5.6%—
GPQA (HELM)65.9%—

Multimodal Qwen3.5 397B-A17B leads

GPT-4.1: 38.2 (#67), Qwen3.5 397B-A17B: 40.7 (#44)

Multimodal benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
LMArena Vision12111263
GeoBench72%—

Multilingual Qwen3.5 397B-A17B leads

GPT-4.1: 49.4 (#133), Qwen3.5 397B-A17B: 53.7 (#59)

Multilingual benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
LMArena Non-English13701430
LMArena Chinese13821500
LMArena French13821461
LMArena German13811447
LMArena Japanese13191426
LMArena Korean13391384
LMArena Russian13771429
LMArena Spanish13761441

Instruction Following Qwen3.5 397B-A17B leads

GPT-4.1: 71.3 (#153), Qwen3.5 397B-A17B: 75.0 (#77)

Instruction Following benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
LMArena Instruction Following13671424
IFEval83.8%—

Long Context Qwen3.5 397B-A17B leads

GPT-4.1: 40.0 (#163), Qwen3.5 397B-A17B: 44.1 (#74)

Long Context benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
LMArena Longer Query13851442
Fiction.LiveBench63.9%—

Writing & Preference Qwen3.5 397B-A17B leads

GPT-4.1: 57.6 (#125), Qwen3.5 397B-A17B: 62.3 (#79)

Writing & Preference benchmarks
BenchmarkGPT-4.1Qwen3.5 397B-A17B
LMArena Text13831438
LMArena Creative Writing13631401
EQ-Bench Creative Writing14201478
LMArena Multi-Turn13981446
WildBench85.4%—

Frequently asked questions

Is GPT-4.1 better than Qwen3.5 397B-A17B?

Qwen3.5 397B-A17B is the stronger model overall, scoring 46.0 to 35.9 on the Noometry Index.

Which is cheaper, GPT-4.1 or Qwen3.5 397B-A17B?

Qwen3.5 397B-A17B is cheaper. It lists at $0.60 per million input tokens and $3.60 per million output tokens; GPT-4.1 lists at $2 and $8.

Is GPT-4.1 or Qwen3.5 397B-A17B better for coding?

Qwen3.5 397B-A17B scores higher on coding benchmarks: 42.0 versus 34.4 in the Noometry coding category.

Which has the bigger context window?

GPT-4.1 does, with 1.05M tokens against 262K.

How many benchmarks do GPT-4.1 and Qwen3.5 397B-A17B share?

27 benchmarks have published results for both models. GPT-4.1 has 52 scored results on Noometry and Qwen3.5 397B-A17B has 36.

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