Model comparison

GPT-5.1-Codex vs Qwen3-VL 235B-A22B

Qwen3-VL 235B-A22B is the stronger model overall, scoring 43.2 to 38.6 on the Noometry Index.

Last verified . 0 shared benchmarks.

GPT-5.1-Codex OpenAI

38.6

Rank #186 Reported

Qwen3-VL 235B-A22B Alibaba (Qwen)

43.2

Rank #95 Confirmed

Summary

  • The widest gap is in math, where Qwen3-VL 235B-A22B leads 39.0 to 30.3.
  • Qwen3-VL 235B-A22B is cheaper at $0.70 / $2.80 per million input/output tokens, against $1.25 / $10 for GPT-5.1-Codex.
  • GPT-5.1-Codex accepts more context: 400K tokens versus 131K.
  • Qwen3-VL 235B-A22B has downloadable open weights; the other is API-only.

Side by side

GPT-5.1-Codex and Qwen3-VL 235B-A22B specifications
GPT-5.1-CodexQwen3-VL 235B-A22B
ProviderOpenAIAlibaba (Qwen)
Noometry Index38.643.2
Released2025-11-122025-04
WeightsProprietaryOpen
Context window400K131K
Max output128K33K
Input $ / M tokens$1.25$0.70
Output $ / M tokens$10$2.80
Results tracked618

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Category by category

Coding Too close to call

GPT-5.1-Codex: 41.9 (#116), Qwen3-VL 235B-A22B: 42.4 (#100)

Coding benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
SWE-bench Verified (bash only)66%—
LMArena WebDev1337—
LMArena Coding—1439
ALE-Bench1,245—

Agentic & Tool Use Not comparable

GPT-5.1-Codex: 38.0 (#33), Qwen3-VL 235B-A22B: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
Terminal-Bench60.4%—
METR Time Horizons70.8%—

Reasoning Not comparable

GPT-5.1-Codex: —, Qwen3-VL 235B-A22B: 29.3 (#92)

Reasoning benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
LMArena Hard Prompts—1428

Math Qwen3-VL 235B-A22B leads

GPT-5.1-Codex: 30.3 (#235), Qwen3-VL 235B-A22B: 39.0 (#118)

Math benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
ProofBench9%—
LMArena Math—1426

Knowledge Not comparable

GPT-5.1-Codex: —, Qwen3-VL 235B-A22B: 40.3 (#121)

Knowledge benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
LMArena Expert—1442

Multimodal Not comparable

GPT-5.1-Codex: —, Qwen3-VL 235B-A22B: 39.8 (#55)

Multimodal benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
LMArena Vision—1247

Multilingual Not comparable

GPT-5.1-Codex: —, Qwen3-VL 235B-A22B: 51.9 (#97)

Multilingual benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
LMArena Non-English—1405
LMArena Chinese—1463
LMArena French—1452
LMArena German—1424
LMArena Japanese—1385
LMArena Korean—1394
LMArena Russian—1408
LMArena Spanish—1428

Instruction Following Not comparable

GPT-5.1-Codex: —, Qwen3-VL 235B-A22B: 74.2 (#101)

Instruction Following benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
LMArena Instruction Following—1406

Long Context Not comparable

GPT-5.1-Codex: —, Qwen3-VL 235B-A22B: 43.4 (#98)

Long Context benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
LMArena Longer Query—1420

Writing & Preference Not comparable

GPT-5.1-Codex: —, Qwen3-VL 235B-A22B: 60.2 (#99)

Writing & Preference benchmarks
BenchmarkGPT-5.1-CodexQwen3-VL 235B-A22B
LMArena Text—1420
LMArena Creative Writing—1366
LMArena Multi-Turn—1428

Frequently asked questions

Is GPT-5.1-Codex better than Qwen3-VL 235B-A22B?

Qwen3-VL 235B-A22B is the stronger model overall, scoring 43.2 to 38.6 on the Noometry Index.

Which is cheaper, GPT-5.1-Codex or Qwen3-VL 235B-A22B?

Qwen3-VL 235B-A22B is cheaper. It lists at $0.70 per million input tokens and $2.80 per million output tokens; GPT-5.1-Codex lists at $1.25 and $10.

Is GPT-5.1-Codex or Qwen3-VL 235B-A22B better for coding?

They score almost the same on coding (41.9 vs 42.4); test both on your own repository before choosing.

Which has the bigger context window?

GPT-5.1-Codex does, with 400K tokens against 131K.

How many benchmarks do GPT-5.1-Codex and Qwen3-VL 235B-A22B share?

0 benchmarks have published results for both models. GPT-5.1-Codex has 6 scored results on Noometry and Qwen3-VL 235B-A22B has 18.

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