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Qwen: Qwen3.5 Plus 2026-02-15 vs xAI: Grok 4.5

Summary

Qwen3.5 Plus 2026-02-15 (medium) vs Grok 4.5 (low) benchmark comparison: Qwen3.5 Plus 2026-02-15 (medium) leads on average score with 8.0 vs 7.8. Qwen3.5 Plus 2026-02-15 (medium) has the lower benchmark cost at $0.310 vs $0.760. Grok 4.5 (low) is faster at 15.48s vs 73.79s, with pass rates of 73.0% vs 74.6%.

Recommended model: Qwen3.5 Plus 2026-02-15 (medium) - It has the best score here (8.0), while costing about 2.5x less than Grok 4.5 (low).

Last updated at: 2026-07-08

Metric Qwen3.5 Plus 2026-02-15 Qwen3.5 Plus 2026-02-15 medium Release: 2026-02-15 Grok 4.5 Grok 4.5 low Release: 2026-07-08
Score 8.0 7.8
Rank #29 #34
Reliability 10.0 10.0
Consistency 8.8 9.7
Tests Correct
Attempt pass rate 73.0% 74.6%
Flaky tests 3 1
Total Runs 63 63
Cost per result 2.445 5.061
Total Cost $0.310 $0.760
Input Price $0.260 / 1M $2.000 / 1M
Output Price $1.560 / 1M $6.000 / 1M
Total Input Tokens 40,918 58,652
Output Tokens 2,159 1,735
Reasoning Tokens 189,604 105,233
Response Time (avg) 73.79s 15.48s
Response Time (max) 266.69s 205.28s
Response Time (total) 1033.07s 324.98s

Generation showcase

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#29 Qwen3.5 Plus 2026-02-15

medium
Cost
$0.011
Time
125.5s
Tokens
7,040 tok

#34 xAI: Grok 4.5

low
Cost
$0.011
Time
12.4s
Tokens
2,018 tok

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) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 8.2 7.9 83.3% 1 45.78s 672 205 21,236
Grok 4.5 10.0 10.0 100.0% 0 2.75s 2,991 261 3,000
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 6.6 7.1 44.4% 1 180.70s 6,950 420 80,595
Grok 4.5 10.0 10.0 100.0% 0 13.72s 9,579 303 15,641
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 46.85s 14,934 421 7,906
Grok 4.5 3.0 10.0 0.0% 0 8.16s 15,084 261 2,370
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 46.91s 7,782 270 14,916
Grok 4.5 10.0 10.0 100.0% 0 3.44s 8,937 225 2,549
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 5.3 10.0 33.3% 0 17.50s 444 35 16,680
Grok 4.5 3.0 10.0 0.0% 0 72.64s 2,514 14 70,275
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 4.7 1.6 66.7% 1 79.86s 344 73 8,675
Grok 4.5 6.1 3.1 66.7% 1 4.88s 1,077 98 1,253
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 31.93s 699 101 7,704
Grok 4.5 9.8 10.0 100.0% 0 2.80s 1,857 57 1,878
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 32.50s 696 301 13,853
Grok 4.5 10.0 10.0 100.0% 0 3.20s 2,430 217 2,590
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 10.0 10.0 100.0% 0 7.54s 8,193 309 909
Grok 4.5 10.0 10.0 100.0% 0 5.83s 13,394 284 871
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Qwen3.5 Plus 2026-02-15 3.0 10.0 0.0% 0 103.81s 204 24 17,130
Grok 4.5 3.0 10.0 0.0% 0 13.98s 789 15 4,806

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