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OpenAI: GPT-5 Nano vs Qwen: Qwen3.5-Flash

Model Name:

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

Summary

Metric OpenAI: GPT-5 Nano medium Release: Unknown release date Qwen: Qwen3.5-Flash none Release: Unknown release date
Rank #23 #35
Score 5.86 3.63
Consistency 6.60 8.32
Cost per result 0.519 0.084
Total Cost $0.037 $0.003
Tests Correct
Wrong Tests 7 11
Attempt pass rate 69.1% 33.3%
Flaky tests 6 3
Output Tokens 3,700 1,799
Reasoning Tokens 85,184 0

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-Flash 2.33 7.76 11.1% 1 687 0
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-Flash 5.38 5.81 83.3% 1 193 0
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-Flash 4.00 7.21 55.6% 1 14 0
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-Flash 3.50 9.99 0.0% 0 63 0
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-Flash 1.33 9.99 0.0% 0 578 0
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-Flash 10.00 10.00 100.0% 0 264 0

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