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OpenAI: GPT-5 Nano vs Z.ai: GLM 5

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Last updated at : 2026-02-27 15:16

Summary

Metric OpenAI: GPT-5 Nano medium Release: Unknown release date Z.ai: GLM 5 medium Release: Unknown release date
Rank #23 #9
Score 5.86 7.29
Consistency 6.60 8.18
Cost per result 0.519 1.196
Total Cost $0.037 $0.120
Tests Correct
Wrong Tests 7 4
Attempt pass rate 69.1% 83.3%
Flaky tests 6 3
Output Tokens 3,700 15,923
Reasoning Tokens 85,184 42,557

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5 Nano 7.00 9.99 66.7% 0 1,107 19,968
Z.ai: GLM 5 10.00 10.00 100.0% 0 420 4,992
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5 Nano 5.50 5.81 83.3% 1 426 8,576
Z.ai: GLM 5 5.00 5.62 83.3% 1 567 3,734
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5 Nano 4.00 4.41 55.6% 2 195 33,600
Z.ai: GLM 5 1.00 4.41 33.3% 2 14,404 24,570
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5 Nano 7.00 6.41 83.3% 1 360 4,032
Z.ai: GLM 5 9.50 9.99 100.0% 0 140 2,740
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5 Nano 4.67 4.90 55.6% 2 1,054 12,032
Z.ai: GLM 5 10.00 10.00 100.0% 0 159 5,527
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5 Nano 10.00 10.00 100.0% 0 558 6,976
Z.ai: GLM 5 10.00 10.00 100.0% 0 233 994

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