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xAI: Grok 4.1 Fast vs Z.ai: GLM 5

Last updated at: 2026-04-14

Metric Grok 4.1 Fast Grok 4.1 Fast medium Release: 2025-11-19 GLM 5 GLM 5 none Release: 2026-02-12
Score 6.7 6.6
Rank #49 #50
Consistency 7.2 9.6
Tests Correct
Attempt pass rate 64.8% 51.9%
Flaky tests 6 1
Total Runs 54 54
Cost per result 0.613 0.217
Total Cost $0.056 $0.020
Input Price $0.200 / 1M $0.720 / 1M
Output Price $0.500 / 1M $2.300 / 1M
Output Tokens 2,010 1,959
Reasoning Tokens 91,298 0
Response Time (avg) 23.88s 4.23s
Response Time (max) 121.79s 11.07s
Response Time (total) 262.66s 46.51s

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Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 8.7 7.9 91.7% 1 3.81s 108 4,741
GLM 5 4.8 10.0 25.0% 0 2.37s 275 0
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 2.3 1.1 33.3% 1 23.58s 821 6,703
GLM 5 5.6 3.5 33.3% 1 8.84s 408 0
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 10.0 10.0 100.0% 0 37.64s 261 12,272
GLM 5 3.0 10.0 0.0% 0 4.98s 406 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 10.0 10.0 100.0% 0 6.63s 180 5,409
GLM 5 10.0 10.0 100.0% 0 5.78s 203 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 5.8 4.4 66.7% 2 121.79s 11 37,657
GLM 5 3.0 10.0 0.0% 0 2.24s 19 0
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 4.2 9.9 0.0% 0 16.25s 127 3,456
GLM 5 10.0 10.0 100.0% 0 3.27s 103 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 6.6 10.0 50.0% 0 5.30s 55 3,489
GLM 5 10.0 10.0 100.0% 0 1.48s 61 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 5.3 7.2 44.4% 1 8.08s 187 6,086
GLM 5 7.7 10.0 66.7% 0 2.05s 264 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
Grok 4.1 Fast 2.8 1.6 33.3% 1 27.71s 260 11,485
GLM 5 10.0 10.0 100.0% 0 11.07s 220 0

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