Model comparison

GPT-5.3 Codex vs Qwen3-1.7B

GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 26.6 on the Noometry Index.

Last verified . 0 shared benchmarks.

GPT-5.3 Codex OpenAI

45.8

Rank #69 Reported

Qwen3-1.7B Alibaba (Qwen)

26.6

Rank #336 Reported

Summary

  • The widest gap is in agentic & tool use, where GPT-5.3 Codex leads 48.0 to 24.7.
  • Qwen3-1.7B has downloadable open weights; the other is API-only.

Side by side

GPT-5.3 Codex and Qwen3-1.7B specifications
GPT-5.3 CodexQwen3-1.7B
ProviderOpenAIAlibaba (Qwen)
Noometry Index45.826.6
Released2026-02-052025-04-29
WeightsProprietaryOpen
Context window400K—
Max output128K—
Input $ / M tokens$1.75—
Output $ / M tokens$14—
Results tracked84

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Category by category

Coding Not comparable

GPT-5.3 Codex: 48.6 (#56), Qwen3-1.7B: —

Coding benchmarks
BenchmarkGPT-5.3 CodexQwen3-1.7B
SWE-bench Verified74.8%—
LMArena WebDev1409—
WeirdML79.3%—
ALE-Bench1,655—

Agentic & Tool Use GPT-5.3 Codex leads

GPT-5.3 Codex: 48.0 (#9), Qwen3-1.7B: 24.7 (#115)

Agentic & Tool Use benchmarks
BenchmarkGPT-5.3 CodexQwen3-1.7B
Terminal-Bench78.4%—
Berkeley Function Calling Leaderboard—28.4%
METR Time Horizons74.5%—
Vending-Bench 25,940—

Reasoning Not comparable

GPT-5.3 Codex: —, Qwen3-1.7B: 19.2 (#267)

Reasoning benchmarks
BenchmarkGPT-5.3 CodexQwen3-1.7B
Chess Puzzles—0%
Epoch Capabilities Index156.77—

Math Not comparable

GPT-5.3 Codex: —, Qwen3-1.7B: 16.3 (#294)

Math benchmarks
BenchmarkGPT-5.3 CodexQwen3-1.7B
OTIS Mock AIME 2024-2025—8.1%

Knowledge Not comparable

GPT-5.3 Codex: —, Qwen3-1.7B: 19.6 (#278)

Knowledge benchmarks
BenchmarkGPT-5.3 CodexQwen3-1.7B
GPQA Diamond—38%

Frequently asked questions

Is GPT-5.3 Codex better than Qwen3-1.7B?

GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 26.6 on the Noometry Index.

How many benchmarks do GPT-5.3 Codex and Qwen3-1.7B share?

0 benchmarks have published results for both models. GPT-5.3 Codex has 8 scored results on Noometry and Qwen3-1.7B has 4.

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