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OpenAI: GPT-5.3 Chat vs Qwen: Qwen3.5 Plus 2026-02-15

Last updated at: 2026-03-12

Metric GPT-5.3 Chat GPT-5.3 Chat none Release: 2026-03-03 Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 medium Release: 2026-02-15
Rank #20 #5
Avg Score 7.3 8.3
Consistency 8.5 9.5
Cost per result 3.163 1.264
Total Cost $0.317 $0.165
Tests Correct
Attempt pass rate 70.8% 85.4%
Flaky tests 3 1
Total Runs 48 48
Output Tokens 19,272 1,735
Reasoning Tokens 0 77,212
Response Time (avg) 5.96s 34.45s
Response Time (max) 18.33s 79.86s
Response Time (total) 95.30s 310.09s

Top Models by Score

Score vs Total Cost

Response Time (avg)

Avg Score vs Response Time (avg)

Total Output Tokens

Avg 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-5.3 Chat 7.3 7.5 77.8% 1 4.72s 3,091 0
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 10.37s 186 5,926
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3 Chat 10.0 10.0 100.0% 0 11.96s 2,614 0
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 46.85s 421 7,906
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3 Chat 9.9 10.0 100.0% 0 2.21s 942 0
Qwen3.5 Plus 2026-02-15 9.9 10.0 100.0% 0 46.91s 270 14,916
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3 Chat 10.0 4.4 33.3% 2 13.01s 8,264 0
Qwen3.5 Plus 2026-02-15 4.0 10.0 33.3% 0 17.50s 35 16,680
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3 Chat 4.0 10.0 0.0% 0 1.99s 319 0
Qwen3.5 Plus 2026-02-15 10.0 1.6 66.7% 1 79.86s 73 8,675
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3 Chat 9.0 10.0 50.0% 0 3.29s 1,455 0
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 31.93s 101 7,704
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3 Chat 10.0 10.0 100.0% 0 2.93s 1,726 0
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 34.57s 340 14,496
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3 Chat 10.0 10.0 100.0% 0 8.36s 861 0
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 7.54s 309 909

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