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OpenAI: GPT-5 Nano vs Qwen: Qwen3.5-27B

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

Summary

Metric OpenAI: GPT-5 Nano medium Release: Unknown release date Qwen: Qwen3.5-27B medium Release: Unknown release date
Rank #23 #5
Score 5.86 8.55
Consistency 6.60 9.55
Cost per result 0.519 2.950
Total Cost $0.037 $0.325
Tests Correct
Wrong Tests 7 3
Attempt pass rate 69.1% 83.3%
Flaky tests 6 1
Output Tokens 3,700 1,091
Reasoning Tokens 85,184 131,807

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5 Nano 7.00 9.99 66.7% 0 1,107 19,968
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 Nano 5.50 5.81 83.3% 1 426 8,576
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 Nano 4.00 4.41 55.6% 2 195 33,600
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 Nano 7.00 6.41 83.3% 1 360 4,032
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 Nano 4.67 4.90 55.6% 2 1,054 12,032
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 Nano 10.00 10.00 100.0% 0 558 6,976
Qwen: Qwen3.5-27B 10.00 10.00 100.0% 0 348 1,323

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