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Anthropic: Claude Opus 4.8 vs Z.ai: GLM 5.2

Summary

Claude Opus 4.8 (medium) vs GLM 5.2 (high) benchmark comparison: Claude Opus 4.8 (medium) leads on average score with 8.8 vs 8.0. GLM 5.2 (high) has the lower benchmark cost at $0.554 vs $1.107. Claude Opus 4.8 (medium) is faster at 9.72s vs 37.09s, with pass rates of 84.1% vs 77.8%.

Recommended model: Claude Opus 4.8 (medium) - It has the best score here (8.8), while responding about 3.8x faster than GLM 5.2 (high).

Last updated at: 2026-07-10

Metric Claude Opus 4.8 Claude Opus 4.8 medium Release: 2026-05-28 GLM 5.2 GLM 5.2 high Release: 2026-06-17
Score 8.8 8.0
Rank #15 #32
Reliability 10.0 9.3
Consistency 9.6 7.6
Tests Correct
Attempt pass rate 84.1% 77.8%
Flaky tests 1 6
Total Runs 63 63
Cost per result 6.512 4.255
Total Cost $1.107 $0.554
Input Price $5.000 / 1M $0.770 / 1M
Output Price $25.000 / 1M $2.420 / 1M
Total Input Tokens 61,007 34,993
Output Tokens 26,495 51,575
Reasoning Tokens 5,901 166,065
Response Time (avg) 9.72s 37.09s
Response Time (max) 38.03s 180.69s
Response Time (total) 204.19s 778.91s

Generation showcase

Hamster playing table tennis

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

#15 Claude Opus 4.8

medium
Cost
$0.057
Time
23.1s
Tokens
2,412 tok

#32 GLM 5.2

high
Invalid SVG
Cost
$0.000
Time
300.0s
Tokens
0 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

Anti-AI Tricks 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 3.95s 834 1,179 478
GLM 5.2 10.0 10.0 100.0% 0 5.80s 639 406 2,660
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 6.4 4.4 77.8% 2 73.03s 5,124 2,302 22,546
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 9.8 10.0 100.0% 0 38.03s 23,561 5,260 1,588
GLM 5.2 10.0 10.0 100.0% 0 43.51s 12,696 711 4,267
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 7.1 5.6 83.3% 1 12.29s 10,503 481 312
GLM 5.2 10.0 10.0 100.0% 0 5.81s 7,143 435 1,414
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 5.3 10.0 33.3% 0 14.59s 975 7,477 900
GLM 5.2 3.5 4.4 33.3% 2 73.97s 551 46,693 90,566
General Intelligence 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 2.46s 708 237 0
GLM 5.2 10.0 10.0 100.0% 0 12.90s 498 63 1,743
Instructions following 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 3.32s 909 373 320
GLM 5.2 10.0 10.0 100.0% 0 4.26s 678 151 1,210
Puzzle Solving 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 3.95s 894 791 483
GLM 5.2 6.0 4.6 66.7% 2 33.71s 665 568 22,392
Tool Calling 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 8.96s 11,775 301 225
GLM 5.2 10.0 10.0 100.0% 0 9.25s 6,861 246 503
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 3.0 10.0 0.0% 0 6.14s 258 451 214
GLM 5.2 3.0 10.0 0.0% 0 127.82s 138 0 18,764

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