Model comparison

GPT-5.3 Chat vs Qwen3.8 Max

Qwen3.8 Max is the stronger model overall, scoring 56.0 to 42.1 on the Noometry Index.

Last verified . 17 shared benchmarks.

GPT-5.3 Chat OpenAI

42.1

Rank #109 Confirmed

Qwen3.8 Max Alibaba (Qwen)

56.0

Rank #21 Confirmed

Summary

  • They share 17 benchmarks with published results for both. GPT-5.3 Chat scores higher in 0 categories and Qwen3.8 Max in 8 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Qwen3.8 Max leads 73.1 to 35.4.
  • Qwen3.8 Max is cheaper at $2 / $6 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Chat.
  • Qwen3.8 Max accepts more context: 1M tokens versus 128K.

Side by side

GPT-5.3 Chat and Qwen3.8 Max specifications
GPT-5.3 ChatQwen3.8 Max
ProviderOpenAIAlibaba (Qwen)
Noometry Index42.156.0
Released2026-03-032026-08-02
WeightsProprietaryProprietary
Context window128K1M
Max output16K131K
Input $ / M tokens$1.75$2
Output $ / M tokens$14$6
Results tracked1838

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Category by category

Coding Qwen3.8 Max leads

GPT-5.3 Chat: 40.8 (#124), Qwen3.8 Max: 52.3 (#30)

Coding benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Coding14081499
DeepSWE—57.5%
LMArena WebDev—1671
FrontierSWE—15.8%
SciCode—52.9%

Agentic & Tool Use Not comparable

GPT-5.3 Chat: —, Qwen3.8 Max: 42.6 (#17)

Agentic & Tool Use benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
τ²-bench Banking—55.1%
GDP.pdf—23.2%

Reasoning Qwen3.8 Max leads

GPT-5.3 Chat: 27.3 (#105), Qwen3.8 Max: 53.4 (#26)

Reasoning benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Hard Prompts13991493
NYT Connections (extended)—88.3%
CritPt—20%
Chess Puzzles—40%
Mystery Game Puzzles—38%
DTBench—92%
LMCA—46.2%
Epoch Capabilities Index—156.69

Math Qwen3.8 Max leads

GPT-5.3 Chat: 35.4 (#146), Qwen3.8 Max: 73.1 (#15)

Math benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Math13891498
FrontierMath (Tiers 1-3)—74.7%
FrontierMath Tier 4—46.3%
OTIS Mock AIME 2024-2025—100%
ProofBench—58%

Knowledge Qwen3.8 Max leads

GPT-5.3 Chat: 38.2 (#137), Qwen3.8 Max: 61.7 (#25)

Knowledge benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Expert13971504
GPQA Diamond—92.7%
SimpleQA Verified—47.3%

Multimodal Not comparable

GPT-5.3 Chat: —, Qwen3.8 Max: 36.9 (#70)

Multimodal benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Vision—1314
Furniture Assembly—20%

Multilingual Qwen3.8 Max leads

GPT-5.3 Chat: 50.5 (#119), Qwen3.8 Max: 56.6 (#18)

Multilingual benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Non-English13831468
LMArena Chinese14331537
LMArena French13981502
LMArena German13841489
LMArena Japanese13511466
LMArena Korean13471467
LMArena Russian14001478
LMArena Spanish13711495

Instruction Following Qwen3.8 Max leads

GPT-5.3 Chat: 73.0 (#124), Qwen3.8 Max: 77.7 (#19)

Instruction Following benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Instruction Following13781478

Long Context Qwen3.8 Max leads

GPT-5.3 Chat: 42.6 (#115), Qwen3.8 Max: 45.5 (#30)

Long Context benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Longer Query13961486

Writing & Preference Qwen3.8 Max leads

GPT-5.3 Chat: 63.3 (#65), Qwen3.8 Max: 67.0 (#31)

Writing & Preference benchmarks
BenchmarkGPT-5.3 ChatQwen3.8 Max
LMArena Text13891480
LMArena Creative Writing13561478
LMArena Multi-Turn14131487
EQ-Bench Creative Writing1690—

Frequently asked questions

Is GPT-5.3 Chat better than Qwen3.8 Max?

Qwen3.8 Max is the stronger model overall, scoring 56.0 to 42.1 on the Noometry Index.

Which is cheaper, GPT-5.3 Chat or Qwen3.8 Max?

Qwen3.8 Max is cheaper. It lists at $2 per million input tokens and $6 per million output tokens; GPT-5.3 Chat lists at $1.75 and $14.

Is GPT-5.3 Chat or Qwen3.8 Max better for coding?

Qwen3.8 Max scores higher on coding benchmarks: 52.3 versus 40.8 in the Noometry coding category.

Which has the bigger context window?

Qwen3.8 Max does, with 1M tokens against 128K.

How many benchmarks do GPT-5.3 Chat and Qwen3.8 Max share?

17 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Qwen3.8 Max has 38.

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