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Claude Sonnet 5 vs Qwen3.5-Flash (medium)

The average score is effectively tied at 6.1 vs 6.1. Qwen3.5-Flash (medium) has the lower benchmark cost at $0.142 vs $0.548. Claude Sonnet 5 is faster at 6.05s vs 84.44s, with pass rates of 40.9% vs 65.2%.

Last updated at: 2026-08-29

Rank
#170
Total Output Tokens
22,508
Response Time (avg)
6.05s
Total Cost
$0.548
Rank
#176
Total Output Tokens
512,846
Response Time (avg)
84.44s
Total Cost
$0.142
Recommended model Claude Sonnet 5

It has the best score here (6.1), while responding about 14.0x faster than Qwen3.5-Flash (medium).

Detailed comparison

Metric Claude Sonnet 5 Claude Sonnet 5 none Release: 2026-06-30 Qwen3.5-Flash Qwen3.5-Flash medium Release: 2026-02-24
Score 6.1 6.1
Rank #170 #176
Reliability 10.0 10.0
Consistency 8.7 7.8
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 40.9% 65.2%
Flaky tests 4 6
Total Runs 66 66
Cost per result 7.817 1.491
Total Cost $0.548 $0.142
Input Price $2.000 / 1M $0.065 / 1M
Output Price $10.000 / 1M $0.260 / 1M
Total Input Tokens 161,032 118,508
Output Tokens 22,508 35,457
Reasoning Tokens 0 477,389
Response Time (avg) 6.05s 84.44s
Response Time (max) 33.39s 515.38s
Response Time (total) 132.99s 1773.20s
Parameters ~1T total (~100B active) ~35B total (~3B active)
Availability Closed Closed

Model generation showcase

Hamster playing table tennis

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

#170 Claude Sonnet 5

none
Cost
$0.061
Time
53.7s
Tokens
6,172 tok

#176 Qwen3.5-Flash

medium
Cost
$0.002
Time
25.8s
Tokens
4,294 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

Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Sonnet 5 4.6 7.9 22.2% 1 3.67s 10,590 1,864 0
Qwen3.5-Flash 3.7 7.2 22.2% 1 58.87s 6,685 302 90,081

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