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Claude Opus 4.8 vs Qwen3.5-Flash (medium)

The average score is effectively tied at 6.9 vs 6.8. Qwen3.5-Flash (medium) has the lower benchmark cost at $0.184 vs $2.334. Claude Opus 4.8 is faster at 7.54s vs 83.68s, with pass rates of 60.9% vs 66.7%.

Last updated at: 2026-10-01

Compared models

Rank
#167
Total Output Tokens
24,343
Response Time (avg)
7.54s
Total Cost
$2.334
Rank
#169
Total Output Tokens
531,668
Response Time (avg)
83.68s
Total Cost
$0.184
Recommended model Qwen3.5-Flash (medium)

It has the best score here (6.8), while costing about 12.7x less than Claude Opus 4.8.

Detailed comparison

Metric Claude Opus 4.8 Claude Opus 4.8 none Release: 2026-05-28 Qwen3.5-Flash Qwen3.5-Flash medium Release: 2026-02-24
Score 6.9 6.8
Rank #167 #169
Reliability 10.0 10.0
Consistency 9.3 7.9
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 60.9% 66.7%
Flaky tests 2 6
Total Runs 69 69
Cost per result 17.953 1.533
Total Cost $2.334 $0.184
Input Price $5.000 / 1M $0.065 / 1M
Output Price $25.000 / 1M $0.260 / 1M
Total Input Tokens 345,059 349,177
Output Tokens 24,343 54,279
Reasoning Tokens 0 477,389
Response Time (avg) 7.54s 83.68s
Response Time (max) 65.07s 515.38s
Response Time (total) 173.31s 1840.92s
Parameters ~5T total (~500B 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.

#167 Claude Opus 4.8

none
Cost
$0.053
Time
22.0s
Tokens
2,253 tok

#169 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 Opus 4.8 5.5 10.0 33.3% 0 3.29s 10,590 1,332 0
Qwen3.5-Flash 3.7 7.2 22.2% 1 58.87s 6,685 302 90,081

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