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Qwen: Qwen3.5-9B vs xAI: Grok 4.20

Last updated at: 2026-04-02

Metric Qwen3.5-9B Qwen3.5-9B medium Release: 2026-03-02 Grok 4.20 Grok 4.20 none Release: 2026-03-31
Score 4.5 5.4
Rank #83 #69
Consistency 7.0 9.5
Tests Correct
Attempt pass rate 35.3% 31.4%
Flaky tests 6 1
Total Runs 51 51
Cost per result 0.787 1.809
Total Cost $0.024 $0.091
Input Price $0.050 / 1M $2.000 / 1M
Output Price $0.150 / 1M $6.000 / 1M
Output Tokens 18,141 1,655
Reasoning Tokens 141,204 0
Response Time (avg) 69.21s 1.11s
Response Time (max) 226.38s 6.04s
Response Time (total) 968.99s 18.80s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 5.1 5.8 50.0% 2 34.44s 2,621 12,411
Grok 4.20 4.8 10.0 25.0% 0 501ms 267 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 3.0 10.0 0.0% 0 0ms 0 0
Grok 4.20 3.0 10.0 0.0% 0 6.04s 282 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 3.6 5.6 33.3% 1 87.31s 1,383 32,113
Grok 4.20 10.0 10.0 100.0% 0 522ms 207 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 3.6 7.2 22.2% 1 137.75s 11,549 48,475
Grok 4.20 3.0 10.0 0.0% 0 687ms 325 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 2.8 1.6 33.3% 1 226.38s 0 30,695
Grok 4.20 4.8 10.0 0.0% 0 659ms 83 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 6.4 5.8 66.7% 1 17.15s 599 4,517
Grok 4.20 4.8 10.0 0.0% 0 455ms 60 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 3.1 10.0 0.0% 0 33.38s 1,545 11,844
Grok 4.20 5.3 7.4 44.4% 1 487ms 242 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Qwen3.5-9B 10.0 10.0 100.0% 0 4.31s 444 1,149
Grok 4.20 10.0 10.0 100.0% 0 4.63s 189 0

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