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OpenAI: gpt-oss-120b vs Qwen: Qwen3.5 Plus 2026-02-15

Last updated at: 2026-05-29

Metric gpt-oss-120b gpt-oss-120b medium Release: 2025-08-05 Free Available Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 none Release: 2026-02-15
Score 5.9 6.4
Rank #103 #94
Reliability 10.0 10.0
Consistency 7.9 9.3
Tests Correct
Attempt pass rate 50.0% 48.3%
Flaky tests 5 2
Total Runs 60 60
Cost per result 0.151 0.195
Total Cost $0.013 $0.018
Input Price $0.039 / 1M $0.260 / 1M
Output Price $0.180 / 1M $1.560 / 1M
Output Tokens 17,495 2,474
Reasoning Tokens 46,878 0
Response Time (avg) 22.41s 2.40s
Response Time (max) 68.16s 6.65s
Response Time (total) 291.35s 33.56s

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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-oss-120b 6.7 9.9 50.0% 0 10.21s 3,518 2,177
Qwen3.5 Plus 2026-02-15 4.8 10.0 25.0% 0 1.91s 517 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 3.9 5.6 33.3% 1 47.24s 847 8,618
Qwen3.5 Plus 2026-02-15 4.9 6.9 16.7% 1 2.54s 467 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 10.0 10.0 100.0% 0 31.18s 694 5,072
Qwen3.5 Plus 2026-02-15 3.0 10.0 0.0% 0 6.65s 314 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 6.4 5.9 66.7% 1 1.98s 241 1,114
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 1.89s 243 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 2.9 4.4 22.2% 2 50.92s 6,784 20,606
Qwen3.5 Plus 2026-02-15 5.3 10.0 33.3% 0 1.17s 17 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 4.3 10.0 0.0% 0 7.90s 107 387
Qwen3.5 Plus 2026-02-15 4.4 3.0 33.3% 1 2.26s 117 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 9.9 10.0 100.0% 0 7.63s 126 1,799
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 1.67s 72 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 5.3 7.2 44.4% 1 21.71s 1,790 2,264
Qwen3.5 Plus 2026-02-15 7.7 10.0 66.7% 0 2.71s 494 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 9.8 10.0 100.0% 0 6.91s 287 1,083
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 3.33s 222 0
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
gpt-oss-120b 3.0 10.0 0.0% 0 26.51s 3,101 3,758
Qwen3.5 Plus 2026-02-15 3.0 10.0 0.0% 0 1.11s 11 0

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