Model comparison

GPT-5.2 Codex vs Qwen2.5-Max

GPT-5.2 Codex is the stronger model overall, scoring 42.6 to 40.7 on the Noometry Index.

Last verified . 0 shared benchmarks.

GPT-5.2 Codex OpenAI

42.6

Rank #111 Reported

Qwen2.5-Max Alibaba (Qwen)

40.7

Rank #146 Confirmed

Summary

  • The widest gap is in coding, where GPT-5.2 Codex leads 45.5 to 41.8.

Side by side

GPT-5.2 Codex and Qwen2.5-Max specifications
GPT-5.2 CodexQwen2.5-Max
ProviderOpenAIAlibaba (Qwen)
Noometry Index42.640.7
Released2025-12-182025-01-25
WeightsProprietaryProprietary
Context window400K—
Max output128K—
Input $ / M tokens$1.75—
Output $ / M tokens$14—
Results tracked527

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Category by category

Coding GPT-5.2 Codex leads

GPT-5.2 Codex: 45.5 (#71), Qwen2.5-Max: 41.8 (#117)

Coding benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
SWE-bench Verified (bash only)72.8%—
LMArena WebDev1339—
SWE-bench Multilingual66.3%—
LiveBench Coding—64.4%
LMArena Coding—1359
ALE-Bench1,300—

Agentic & Tool Use Not comparable

GPT-5.2 Codex: 41.0 (#22), Qwen2.5-Max: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
Terminal-Bench66.5%—

Reasoning Not comparable

GPT-5.2 Codex: —, Qwen2.5-Max: 25.6 (#147)

Reasoning benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
LiveBench Reasoning—51.4%
LMArena Hard Prompts—1360
LiveBench Data Analysis—67.9%
Epoch Capabilities Index—132.53
LiveBench—62.3%

Math Not comparable

GPT-5.2 Codex: —, Qwen2.5-Max: 36.9 (#162)

Math benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
LiveBench Math—58.4%
LMArena Math—1369

Knowledge Not comparable

GPT-5.2 Codex: —, Qwen2.5-Max: 35.3 (#186)

Knowledge benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
Confabulations—21.8%
LMArena Expert—1337

Multilingual Not comparable

GPT-5.2 Codex: —, Qwen2.5-Max: 48.1 (#146)

Multilingual benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
LMArena Non-English—1352
LMArena Chinese—1382
LMArena French—1396
LMArena German—1350
LMArena Japanese—1300
LMArena Korean—1304
LMArena Russian—1353
LMArena Spanish—1377

Instruction Following Not comparable

GPT-5.2 Codex: —, Qwen2.5-Max: 71.3 (#152)

Instruction Following benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
LiveBench Instruction Following—75.3%
LMArena Instruction Following—1335

Long Context Not comparable

GPT-5.2 Codex: —, Qwen2.5-Max: 41.4 (#142)

Long Context benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
LMArena Longer Query—1358

Writing & Preference Not comparable

GPT-5.2 Codex: —, Qwen2.5-Max: 55.4 (#146)

Writing & Preference benchmarks
BenchmarkGPT-5.2 CodexQwen2.5-Max
LMArena Text—1367
LMArena Creative Writing—1339
Short-Story Creative Writing—72.9%
LMArena Multi-Turn—1364
LiveBench Language—56.3%

Frequently asked questions

Is GPT-5.2 Codex better than Qwen2.5-Max?

GPT-5.2 Codex is the stronger model overall, scoring 42.6 to 40.7 on the Noometry Index.

Is GPT-5.2 Codex or Qwen2.5-Max better for coding?

GPT-5.2 Codex scores higher on coding benchmarks: 45.5 versus 41.8 in the Noometry coding category.

How many benchmarks do GPT-5.2 Codex and Qwen2.5-Max share?

0 benchmarks have published results for both models. GPT-5.2 Codex has 5 scored results on Noometry and Qwen2.5-Max has 27.

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