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Claude Opus 4.8 vs GLM 5.3 FlashX (medium)

GLM 5.3 FlashX (medium) leads on average score with 7.1 vs 6.9. GLM 5.3 FlashX (medium) has the lower benchmark cost at $0.114 vs $2.334. GLM 5.3 FlashX (medium) is faster at 7.37s vs 7.54s, with pass rates of 60.9% vs 69.6%.

Last updated at: 2026-10-09

Compared models

Rank
#179
Total Output Tokens
24,343
Response Time (avg)
7.54s
Total Cost
$2.334
Rank
#161
Total Output Tokens
30,048
Response Time (avg)
7.37s
Total Cost
$0.114
Recommended model GLM 5.3 FlashX (medium)

It has the best score here (7.1), while costing about 20.6x 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 FlashX GLM 5.3 FlashX medium Release: 2026-09-21
Score 6.9 7.1
Rank #179 #161
Reliability 10.0 10.0
Consistency 9.3 7.1
Attempts 69/69 69/69
Tests Correct
Attempt pass rate 60.9% 69.6%
Flaky tests 2 8
Total Runs 69 69
Cost per result 17.953 0.946
Total Cost $2.334 $0.114
Input Price $5.000 / 1M $0.370 / 1M
Output Price $25.000 / 1M $1.250 / 1M
Cache Read Price $0.500 / 1M $0.090 / 1M
Cache Write Price $6.250 / 1M N/A
Total Input Tokens 345,059 205,100
Output Tokens 24,343 8,639
Reasoning Tokens 0 21,409
Response Time (avg) 7.54s 7.37s
Response Time (max) 65.07s 74.39s
Response Time (total) 173.31s 169.54s
Parameters ~5T total (~500B active) 320B total (18B active)
Availability Closed Closed

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Model generation showcase

Hamster playing table tennis

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

#179 Claude Opus 4.8

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

#161 GLM 5.3 FlashX

medium
Cost
$0.002
Time
8.1s
Tokens
1,480 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 FlashX 6.0 4.6 66.7% 2 6.37s 7,317 384 5,562

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