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

Last updated at: 2026-05-08

Metric GPT-5.3-Codex GPT-5.3-Codex medium Release: 2026-02-05 GLM 5 Turbo GLM 5 Turbo medium Release: 2026-03-15
Score 8.2 8.1
Rank #13 #20
Reliability 10.0 6.7
Consistency 8.3 8.4
Tests Correct
Attempt pass rate 80.7% 77.2%
Flaky tests 4 4
Total Runs 57 57
Cost per result 4.594 1.438
Total Cost $0.598 $0.187
Input Price $1.750 / 1M $1.200 / 1M
Output Price $14.000 / 1M $4.000 / 1M
Output Tokens 2,309 12,217
Reasoning Tokens 36,880 40,252
Response Time (avg) 15.33s 18.85s
Response Time (max) 100.93s 194.23s
Response Time (total) 291.34s 358.15s

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) Output Tokens Reasoning Tokens
GPT-5.3-Codex 8.7 7.9 91.7% 1 4.16s 240 1,722
GLM 5 Turbo 10.0 10.0 100.0% 0 4.82s 362 3,137
Coding Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 10.0 10.0 100.0% 0 8.95s 491 1,530
GLM 5 Turbo 10.0 10.0 100.0% 0 12.26s 332 3,301
Combined Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 10.0 10.0 100.0% 0 19.56s 364 2,731
GLM 5 Turbo 10.0 10.0 100.0% 0 13.88s 390 2,037
Data parsing and extraction Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 10.0 10.0 100.0% 0 3.07s 234 728
GLM 5 Turbo 10.0 10.0 100.0% 0 6.19s 577 3,632
Domain specific Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 5.9 7.2 55.6% 1 64.31s 64 25,308
GLM 5 Turbo 2.9 4.4 22.2% 2 71.07s 9,665 19,279
General Intelligence Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 4.6 10.0 0.0% 0 4.87s 187 331
GLM 5 Turbo 6.1 3.1 66.7% 1 10.05s 60 2,216
Instructions following Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 10.0 10.0 100.0% 0 3.04s 93 693
GLM 5 Turbo 10.0 10.0 100.0% 0 5.38s 255 2,183
Puzzle Solving Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 9.0 7.9 88.9% 1 5.12s 352 1,644
GLM 5 Turbo 8.7 7.9 77.8% 1 5.44s 315 2,702
Tool Calling Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 10.0 10.0 100.0% 0 6.37s 254 492
GLM 5 Turbo 10.0 10.0 100.0% 0 9.84s 241 446
Trivia Score Consistency Attempt pass rate Flaky tests Tests Correct Response Time (avg) Output Tokens Reasoning Tokens
GPT-5.3-Codex 2.8 1.6 33.3% 1 14.43s 30 1,701
GLM 5 Turbo 3.0 10.0 0.0% 0 40.17s 20 1,319

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