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OpenAI: GPT-5 Nano vs Qwen: Qwen3.5 Plus 2026-04-20

Last updated at: 2026-04-27

Metric GPT-5 Nano GPT-5 Nano medium Release: 2025-08-07 Qwen3.5 Plus 2026-04-20 Qwen3.5 Plus 2026-04-20 none Release: 2026-04-20
Score 6.3 5.8
Rank #74 #88
Reliability N/A 9.8
Consistency 6.5 8.3
Tests Correct
Attempt pass rate 59.3% 42.6%
Flaky tests 8 4
Total Runs 54 54
Cost per result 0.942 0.397
Total Cost $0.066 $0.024
Input Price $0.050 / 1M $0.400 / 1M
Output Price $0.400 / 1M $2.400 / 1M
Output Tokens 4,980 4,645
Reasoning Tokens 156,288 0
Response Time (avg) 44.13s 3.18s
Response Time (max) 204.02s 13.32s
Response Time (total) 485.47s 57.24s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Score vs Response Time (avg)

Total Output Tokens

Score vs Total Output Tokens

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 6.5 7.9 58.3% 1 25.50s 1,221 21,184
Qwen3.5 Plus 2026-04-20 4.8 10.0 25.0% 0 1.88s 557 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 6.7 3.5 66.7% 1 40.73s 480 12,992
Qwen3.5 Plus 2026-04-20 5.3 3.4 33.3% 1 3.20s 450 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 10.0 10.0 100.0% 0 65.96s 578 17,984
Qwen3.5 Plus 2026-04-20 2.8 1.6 33.3% 1 13.32s 2,275 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 3.7 1.7 50.0% 2 21.42s 453 10,560
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 2.82s 243 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 5.2 4.4 55.6% 2 204.02s 237 64,448
Qwen3.5 Plus 2026-04-20 5.3 10.0 33.3% 0 4.43s 18 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 4.1 10.0 0.0% 0 17.51s 202 4,608
Qwen3.5 Plus 2026-04-20 4.8 10.0 0.0% 0 1.41s 119 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 8.5 6.8 83.3% 1 11.90s 382 4,096
Qwen3.5 Plus 2026-04-20 6.2 5.8 66.7% 1 1.17s 68 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 5.3 7.2 44.4% 1 19.81s 869 13,440
Qwen3.5 Plus 2026-04-20 4.8 7.9 22.2% 1 2.03s 618 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5 Nano 10.0 10.0 100.0% 0 33.30s 558 6,976
Qwen3.5 Plus 2026-04-20 10.0 10.0 100.0% 0 4.42s 297 0

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