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Qwen: Qwen3.5 Plus 2026-02-15 vs xAI: Grok 4.1 Fast

Model Name:

Last updated at : 2026-02-27 15:16

Summary

Metric Qwen: Qwen3.5 Plus 2026-02-15 none Release: Unknown release date xAI: Grok 4.1 Fast none Release: Unknown release date
Rank #15 #38
Score 6.29 3.00
Consistency 9.99 8.69
Cost per result 0.139 0.176
Total Cost $0.012 $0.006
Tests Correct
Wrong Tests 6 11
Attempt pass rate 57.1% 28.6%
Flaky tests 0 2
Output Tokens 1,499 931
Reasoning Tokens 0 0

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Qwen: Qwen3.5 Plus 2026-02-15 4.00 10.00 33.3% 0 514 0
xAI: Grok 4.1 Fast 1.33 10.00 0.0% 0 229 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 243 0
xAI: Grok 4.1 Fast 10.00 10.00 100.0% 0 180 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Qwen: Qwen3.5 Plus 2026-02-15 4.00 10.00 33.3% 0 15 0
xAI: Grok 4.1 Fast 4.00 7.21 55.6% 1 15 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Qwen: Qwen3.5 Plus 2026-02-15 9.50 10.00 100.0% 0 71 0
xAI: Grok 4.1 Fast 1.00 10.00 0.0% 0 66 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Qwen: Qwen3.5 Plus 2026-02-15 5.00 9.96 33.3% 0 434 0
xAI: Grok 4.1 Fast 1.00 9.48 0.0% 0 233 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
Qwen: Qwen3.5 Plus 2026-02-15 10.00 10.00 100.0% 0 222 0
xAI: Grok 4.1 Fast 1.00 1.62 33.3% 1 208 0

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