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Claude Opus 4.8 vs GLM 5.3 Flash (high)

The average score is effectively tied at 7.3 vs 7.3. GLM 5.3 Flash (high) has the lower benchmark cost at $0.029 vs $1.166. Claude Opus 4.8 is faster at 4.92s vs 25.36s, with pass rates of 63.6% vs 66.7%.

Last updated at: 2026-08-26

Rank
#106
Total Output Tokens
16,797
Response Time (avg)
4.92s
Total Cost
$1.166
Rank
#102
Total Output Tokens
78,318
Response Time (avg)
25.36s
Total Cost
$0.029
Recommended model GLM 5.3 Flash (high)

It has the best score here (7.3), while costing about 41.6x less than Claude Opus 4.8.

Detailed comparison

Metric Claude Opus 4.8 Claude Opus 4.8 none Release: 2026-05-28 GLM 5.3 Flash GLM 5.3 Flash high Release: 2026-08-26
Score 7.3 7.3
Rank #106 #102
Reliability 10.0 10.0
Consistency 9.2 8.9
Attempts 66/66 66/66
Tests Correct
Attempt pass rate 63.6% 66.7%
Flaky tests 2 3
Total Runs 66 66
Cost per result 8.969 0.216
Total Cost $1.166 $0.029
Input Price $5.000 / 1M $0.075 / 1M
Output Price $25.000 / 1M $0.250 / 1M
Total Input Tokens 149,203 113,003
Output Tokens 16,797 11,558
Reasoning Tokens 0 66,760
Response Time (avg) 4.92s 25.36s
Response Time (max) 35.03s 163.41s
Response Time (total) 108.24s 558.01s
Parameters ~5T total (~500B active) 320B total (18B active)
Availability Closed Open source

Model generation showcase

Hamster playing table tennis

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

#106 Claude Opus 4.8

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

#102 GLM 5.3 Flash

high
Cost
$0.003
Time
186.7s
Tokens
10,486 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
GLM 5.3 Flash 8.2 7.2 88.9% 1 19.62s 7,317 373 9,973

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