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OpenAI: GPT-5.3-Codex vs Z.ai: GLM 5

Model Name:

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

Summary

Metric OpenAI: GPT-5.3-Codex medium Release: Unknown release date Z.ai: GLM 5 none Release: Unknown release date
Rank #7 #19
Score 7.93 6.07
Consistency 8.84 10.00
Cost per result 4.641 0.095
Total Cost $0.465 $0.008
Tests Correct
Wrong Tests 4 6
Attempt pass rate 78.6% 57.1%
Flaky tests 2 0
Output Tokens 1,201 1,086
Reasoning Tokens 30,056 0

Category Breakdown

Anti-AI Tricks Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 10.00 10.00 100.0% 0 216 1,421
Z.ai: GLM 5 4.00 10.00 33.3% 0 272 0
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 10.00 10.00 100.0% 0 234 735
Z.ai: GLM 5 10.00 10.00 100.0% 0 230 0
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 4.00 7.21 55.6% 1 64 25,308
Z.ai: GLM 5 1.00 10.00 0.0% 0 20 0
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 9.00 10.00 50.0% 0 93 693
Z.ai: GLM 5 10.00 10.00 100.0% 0 62 0
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 7.00 7.38 77.8% 1 340 1,407
Z.ai: GLM 5 6.67 9.99 66.7% 0 282 0
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Output Tokens Reasoning Tokens
OpenAI: GPT-5.3-Codex 10.00 10.00 100.0% 0 254 492
Z.ai: GLM 5 10.00 10.00 100.0% 0 220 0

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