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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 none Release: Unknown release date
Rank #7 #29
Score 7.93 4.70
Consistency 8.84 9.93
Cost per result 4.641 0.190
Total Cost $0.465 $0.010
Tests Correct
Wrong Tests 4 9
Attempt pass rate 78.6% 35.7%
Flaky tests 2 0
Output Tokens 1,201 1,600
Reasoning Tokens 30,056 0

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 4.00 10.00 33.3% 0 264 0
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% 0 243 0
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 1.00 10.00 0.0% 0 15 0
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 4.00 10.00 0.0% 0 69 0
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 4.33 9.68 33.3% 0 706 0
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% 0 303 0

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