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OpenAI: GPT-5.3-Codex vs Qwen: Qwen3.5-27B

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Last updated at : 2026-02-27 15:16

Summary

Metric OpenAI: GPT-5.3-Codex medium Release: Unknown release date Qwen: Qwen3.5-27B medium Release: Unknown release date
Rank #7 #5
Score 7.93 8.55
Consistency 8.84 9.55
Cost per result 4.641 2.950
Total Cost $0.465 $0.325
Tests Correct
Wrong Tests 4 3
Attempt pass rate 78.6% 83.3%
Flaky tests 2 1
Output Tokens 1,201 1,091
Reasoning Tokens 30,056 131,807

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 10.00 10.00 100.0% 0 216 1,421
Qwen: Qwen3.5-27B 10.00 10.00 100.0% 0 102 8,956
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 10.00 10.00 100.0% 0 234 735
Qwen: Qwen3.5-27B 9.88 10.00 100.0% 0 270 16,150
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 4.00 7.21 55.6% 1 64 25,308
Qwen: Qwen3.5-27B 4.00 10.00 33.3% 0 43 52,368
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 9.00 10.00 50.0% 0 93 693
Qwen: Qwen3.5-27B 9.00 6.88 83.3% 1 97 11,638
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 7.00 7.38 77.8% 1 340 1,407
Qwen: Qwen3.5-27B 10.00 10.00 100.0% 0 231 41,372
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 10.00 10.00 100.0% 0 254 492
Qwen: Qwen3.5-27B 10.00 10.00 100.0% 0 348 1,323

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