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Qwen: Qwen3.5 Plus 2026-02-15 vs xAI: Grok 4.20 Multi-Agent Beta

Last updated at: 2026-03-17

Metric Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 none Release: 2026-02-15 Grok 4.20 Multi-Agent Beta Grok 4.20 Multi-Agent Beta medium Release: 2026-03-12
Rank #39 #44
Score 6.8 6.2
Consistency 9.6 7.2
Cost per result 0.172 82.962
Total Cost $0.016 $4.978
Tests Correct
Attempt pass rate 54.9% 54.9%
Flaky tests 1 6
Total Runs 51 51
Output Tokens 2,018 298,948
Reasoning Tokens 0 296,529
Response Time (avg) 2.51s 8.64s
Response Time (max) 6.65s 35.28s
Response Time (total) 27.60s 129.64s

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
Qwen3.5 Plus 2026-02-15 4.8 10.0 25.0% 0 1.91s 517 0
Grok 4.20 Multi-Agent Beta 6.9 5.8 75.0% 2 3.46s 33,706 33,077
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 3.0 10.0 0.0% 0 6.65s 314 0
Grok 4.20 Multi-Agent Beta 3.0 10.0 0.0% 0 0ms 0 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 1.89s 243 0
Grok 4.20 Multi-Agent Beta 10.0 10.0 100.0% 0 5.54s 25,306 25,051
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 5.3 10.0 33.3% 0 1.17s 17 0
Grok 4.20 Multi-Agent Beta 2.9 7.2 11.1% 1 24.67s 164,609 163,647
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 4.4 3.0 33.3% 1 2.26s 117 0
Grok 4.20 Multi-Agent Beta 5.8 2.8 66.7% 1 6.40s 15,848 15,746
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 1.67s 72 0
Grok 4.20 Multi-Agent Beta 8.3 10.0 50.0% 0 4.63s 25,457 25,322
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 7.7 10.0 66.7% 0 2.82s 516 0
Grok 4.20 Multi-Agent Beta 7.2 5.1 77.8% 2 5.01s 34,022 33,686
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 3.33s 222 0
Grok 4.20 Multi-Agent Beta 3.0 10.0 0.0% 0 0ms 0 0

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