Model comparison

GPT-3.5-turbo vs Qwen3.5 Plus

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 23.2 on the Noometry Index.

Last verified . 7 shared benchmarks.

GPT-3.5-turbo OpenAI

23.2

Rank #350 Confirmed

Qwen3.5 Plus Alibaba (Qwen)

42.9

Rank #106 Confirmed

Summary

  • They share 7 benchmarks with published results for both. GPT-3.5-turbo scores higher in 0 categories and Qwen3.5 Plus in 4 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in math, where Qwen3.5 Plus leads 49.6 to 6.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 2.2% for GPT-3.5-turbo and 86.7% for Qwen3.5 Plus.
  • GPT-3.5-turbo is cheaper at $0.50 / $1.50 per million input/output tokens, against $0.40 / $2.40 for Qwen3.5 Plus.
  • Qwen3.5 Plus accepts more context: 1M tokens versus 16K.

Side by side

GPT-3.5-turbo and Qwen3.5 Plus specifications
GPT-3.5-turboQwen3.5 Plus
ProviderOpenAIAlibaba (Qwen)
Noometry Index23.242.9
Released2023-03-012026-02-16
WeightsProprietaryProprietary
Context window16K1M
Max output4K66K
Input $ / M tokens$0.50$0.40
Output $ / M tokens$1.50$2.40
Results tracked4415

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Category by category

Coding Not comparable

GPT-3.5-turbo: 23.9 (#331), Qwen3.5 Plus: —

Coding benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
WeirdML3.5%—
BigCodeBench Instruct39.1%—
LMArena Coding1136—
BigCodeBench Complete50.6%—
ALE-Bench—621.92
HumanEval+70.7%—
MBPP+69.7%—

Agentic & Tool Use Not comparable

GPT-3.5-turbo: —, Qwen3.5 Plus: —

Agentic & Tool Use benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
METR Time Horizons21.5%—
Vending-Bench 2—0.54

Reasoning Qwen3.5 Plus leads

GPT-3.5-turbo: 13.8 (#332), Qwen3.5 Plus: 32.8 (#74)

Reasoning benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
Chess Puzzles0%22%
Mystery Game Puzzles3%17%
DTBench48.5%80.5%
LMCA9.7%36.4%
Epoch Capabilities Index118.55146.78
LMArena Hard Prompts1108—
Adversarial NLI58.1%—
BIG-Bench Hard61.6%—
CommonsenseQA 2.057%—
ForecastBench50.4—
WinoGrande81.6%—

Math Qwen3.5 Plus leads

GPT-3.5-turbo: 6.3 (#327), Qwen3.5 Plus: 49.6 (#61)

Math benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
OTIS Mock AIME 2024-20252.2%86.7%
FrontierMath (Tiers 1-3)0%—
LMArena Math1142—
MATH Level 515.9%—
FrontierMath (Feb 2025 set)—21%
FrontierMath Tier 4 (v1)—2.1%
GSM8K57.8%—

Knowledge Qwen3.5 Plus leads

GPT-3.5-turbo: 10.0 (#303), Qwen3.5 Plus: 46.0 (#83)

Knowledge benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
GPQA Diamond28%84.8%
SimpleQA Verified—25.4%
Vectara Hallucination Rate—10.7%
LMArena Expert1070—
ARC (AI2) Challenge87.4%—
BoolQ87%—
MMLU71.4%—
OpenBookQA86%—
TriviaQA85.8%—

Multilingual Not comparable

GPT-3.5-turbo: 31.5 (#258), Qwen3.5 Plus: —

Multilingual benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
LMArena Non-English1108—
LMArena Chinese1075—
LMArena French1118—
LMArena German1090—
LMArena Japanese1043—
LMArena Korean1019—
LMArena Russian1123—
LMArena Spanish1121—

Instruction Following Not comparable

GPT-3.5-turbo: 57.9 (#262), Qwen3.5 Plus: —

Instruction Following benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
LMArena Instruction Following1119—

Long Context Qwen3.5 Plus leads

GPT-3.5-turbo: 34.0 (#254), Qwen3.5 Plus: 43.0 (#113)

Long Context benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
CL-bench—19.8%
CL-bench Life—12.4%
LMArena Longer Query1121—

Writing & Preference Not comparable

GPT-3.5-turbo: 25.3 (#305), Qwen3.5 Plus: —

Writing & Preference benchmarks
BenchmarkGPT-3.5-turboQwen3.5 Plus
LMArena Text1125—
LMArena Creative Writing1092—
EQ-Bench Creative Writing451—
LMArena Multi-Turn1117—

Frequently asked questions

Is GPT-3.5-turbo better than Qwen3.5 Plus?

Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 23.2 on the Noometry Index.

Which is cheaper, GPT-3.5-turbo or Qwen3.5 Plus?

GPT-3.5-turbo is cheaper. It lists at $0.50 per million input tokens and $1.50 per million output tokens; Qwen3.5 Plus lists at $0.40 and $2.40.

Which has the bigger context window?

Qwen3.5 Plus does, with 1M tokens against 16K.

How many benchmarks do GPT-3.5-turbo and Qwen3.5 Plus share?

7 benchmarks have published results for both models. GPT-3.5-turbo has 44 scored results on Noometry and Qwen3.5 Plus has 15.

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