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Anthropic: Claude Opus 4.8 vs Z.ai: GLM 5

Summary

Claude Opus 4.8 vs GLM 5 benchmark comparison: GLM 5 leads on average score with 8.6 vs 7.7. GLM 5 has the lower benchmark cost at $0.228 vs $1.270. Claude Opus 4.8 is faster at 10.83s vs 33.54s, with pass rates of 79.4% vs 82.5%.

Recommended model: GLM 5 - It has the best score here (8.6), while costing about 5.6x less than Claude Opus 4.8.

Last updated at: 2026-07-02

Metric Claude Opus 4.8 Claude Opus 4.8 low Release: 2026-05-28 GLM 5 GLM 5 medium Release: 2026-02-12
Score 7.7 8.6
Rank #38 #15
Reliability 10.0 10.0
Consistency 8.8 8.5
Tests Correct
Attempt pass rate 79.4% 82.5%
Flaky tests 3 4
Total Runs 63 63
Cost per result 8.466 1.668
Total Cost $1.270 $0.228
Input Price $5.000 / 1M $0.600 / 1M
Output Price $25.000 / 1M $1.920 / 1M
Total Input Tokens 60,946 35,224
Output Tokens 31,771 21,570
Reasoning Tokens 6,831 102,996
Response Time (avg) 10.83s 33.54s
Response Time (max) 127.97s 99.85s
Response Time (total) 227.39s 435.99s

Generation showcase

Hamster playing table tennis

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

#38 Claude Opus 4.8

low
Cost
$0.031
Time
14.1s
Tokens
1,345 tok

#15 GLM 5

medium
Cost
$0.005
Time
20.7s
Tokens
2,068 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 3.30s 834 793 371
GLM 5 10.0 10.0 100.0% 0 23.66s 555 480 7,056
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Input Tokens Output Tokens Reasoning Tokens
Claude Opus 4.8 6.6 4.6 77.8% 2 7.58s 10,590 3,637 809
GLM 5 10.0 10.0 100.0% 0 74.30s 7,254 2,997 52,930
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 20.84s 23,500 2,216 1,081
GLM 5 10.0 10.0 100.0% 0 28.96s 12,804 662 3,242
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 6.3 5.8 66.7% 1 2.27s 10,503 310 0
GLM 5 7.1 5.6 83.3% 1 8.90s 5,508 567 3,734
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 45.53s 975 23,311 3,908
GLM 5 3.5 4.4 33.3% 2 0ms 260 13,176 14,137
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 2.55s 708 231 0
GLM 5 6.1 3.1 66.7% 1 14.69s 477 2,020 2,248
Instructions following 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 2.78s 909 111 221
GLM 5 10.0 10.0 100.0% 0 7.25s 636 1,001 2,129
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 3.01s 894 592 184
GLM 5 10.0 10.0 100.0% 0 11.33s 609 33 4,076
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 6.85s 11,775 370 35
GLM 5 10.0 10.0 100.0% 0 15.93s 6,935 233 994
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 5.48s 258 200 222
GLM 5 3.0 10.0 0.0% 0 67.37s 186 401 12,450

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