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Claude Opus 4.8 (medium) vs GLM 5.2 (medium)

Claude Opus 4.8 (medium) leads on average score with 8.8 vs 7.8. GLM 5.2 (medium) has the lower benchmark cost at $0.178 vs $1.931. Claude Opus 4.8 (medium) is faster at 12.49s vs 23.28s, with pass rates of 84.9% vs 80.3%.

Last updated at: 2026-08-05

Rank
#19
Total Output Tokens
49,841
Response Time (avg)
12.49s
Total Cost
$1.931
Rank
#54
Total Output Tokens
61,761
Response Time (avg)
23.28s
Total Cost
$0.178
Recommended model Claude Opus 4.8 (medium)

It has the best score here (8.8), while responding about 1.9x faster than GLM 5.2 (medium).

Detailed comparison

Metric Claude Opus 4.8 Claude Opus 4.8 medium Release: 2026-05-28 GLM 5.2 GLM 5.2 medium Release: 2026-06-17
Score 8.8 7.8
Rank #19 #54
Reliability 10.0 9.5
Consistency 9.6 8.0
Benchmark coverage 22/22 tests · 66/66 attempts 21/22 tests · 63/66 attempts
Tests Correct
Attempt pass rate 84.9% 80.3%
Flaky tests 1 4
Total Runs 66 63
Cost per result 10.724 2.159
Total Cost $1.931 $0.178
Input Price $5.000 / 1M $0.760 / 1M
Output Price $25.000 / 1M $2.420 / 1M
Total Input Tokens 138,451 37,199
Output Tokens 40,766 12,261
Reasoning Tokens 9,075 49,500
Response Time (avg) 12.49s 23.28s
Response Time (max) 70.54s 101.36s
Response Time (total) 274.72s 488.94s

Model generation showcase

Solar System Animation

Prompt: Create a single-file HTML/CSS animation of the Solar System against a dark background, using no JavaScript or external images. The output must feature a stationary Sun and all 8 primary planets (Mercury through Neptune) orbiting it continuously in the correct order using infinite CSS loops. Also include the Moon orbiting Earth and add labels to the planets. The design must be scalable and optimized for a 1:1 aspect ratio by default.

#19 Claude Opus 4.8

medium
Cost
$0.137
Time
59.7s
Tokens
5,711 tok

#54 GLM 5.2

medium
Cost
$0.047
Time
135.5s
Tokens
10,705 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 10.0 10.0 100.0% 0 15.33s 10,590 9,945 1,381
GLM 5.2 8.2 7.2 88.9% 1 40.96s 7,317 1,475 17,123

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