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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 medium Release: Unknown release date xAI: Grok 4.1 Fast none Release: Unknown release date
Rank #4 #38
Score 8.64 3.00
Consistency 10.00 8.69
Cost per result 1.955 0.176
Total Cost $0.235 $0.006
Tests Correct
Wrong Tests 2 11
Attempt pass rate 85.7% 28.6%
Flaky tests 0 2
Output Tokens 1,258 931
Reasoning Tokens 93,374 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 10.00 10.00 100.0% 0 186 5,926
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% 0 283 14,892
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 56 39,882
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 9.99 100.0% 0 102 9,257
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 10.00 10.00 100.0% 0 322 22,508
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% 0 309 909
xAI: Grok 4.1 Fast 1.00 1.62 33.3% 1 208 0

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