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

Last updated at: 2026-04-29

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
Score 7.7 8.5
Rank #48 #12
Reliability N/A N/A
Consistency 8.6 9.1
Tests Correct
Attempt pass rate 68.5% 83.3%
Flaky tests 3 2
Total Runs 54 54
Cost per result 3.082 1.566
Total Cost $0.340 $0.220
Input Price $1.750 / 1M $0.260 / 1M
Output Price $14.000 / 1M $1.560 / 1M
Output Tokens 20,784 2,121
Reasoning Tokens 0 111,889
Response Time (avg) 5.88s 46.56s
Response Time (max) 18.33s 120.91s
Response Time (total) 105.90s 512.20s

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Score vs Total Cost

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Score vs Response Time (avg)

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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 6.7 8.1 58.3% 1 3.86s 3,167 0
Qwen3.5 Plus 2026-02-15 8.2 7.9 83.3% 1 45.78s 205 21,236
Coding 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 9.32s 1,436 0
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 120.91s 367 19,367
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 10.0 10.0 100.0% 0 2.21s 942 0
Qwen3.5 Plus 2026-02-15 10.0 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 3.5 4.4 33.3% 2 13.01s 8,264 0
Qwen3.5 Plus 2026-02-15 5.3 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 4.6 10.0 0.0% 0 1.99s 319 0
Qwen3.5 Plus 2026-02-15 4.7 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 8.3 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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