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

Summary

GPT-5.3 Chat vs GLM 5 benchmark comparison: GLM 5 leads on average score with 8.6 vs 7.5. GLM 5 has the lower benchmark cost at $0.228 vs $0.433. GPT-5.3 Chat is faster at 6.34s vs 33.54s, with pass rates of 66.7% vs 82.5%.

Recommended model: GLM 5 - It has the best score here (8.6), while costing about 1.9x less than GPT-5.3 Chat.

Last updated at: 2026-06-17

Metric GPT-5.3 Chat GPT-5.3 Chat none Release: 2026-03-03 GLM 5 GLM 5 medium Release: 2026-02-12
Score 7.5 8.6
Rank #45 #15
Reliability 10.0 10.0
Consistency 8.1 8.5
Tests Correct
Attempt pass rate 66.7% 82.5%
Flaky tests 5 4
Total Runs 63 63
Cost per result 3.605 1.668
Total Cost $0.433 $0.228
Input Price $1.750 / 1M $0.600 / 1M
Output Price $14.000 / 1M $1.920 / 1M
Total Input Tokens 34,209 35,224
Output Tokens 26,617 21,570
Reasoning Tokens 0 102,996
Response Time (avg) 6.34s 33.54s
Response Time (max) 18.33s 99.85s
Response Time (total) 133.13s 435.99s

Generation showcase

Hamster playing table tennis

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

#45 GPT-5.3 Chat

none
Cost
$0.008
Time
8.1s
Tokens
634 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
GPT-5.3 Chat 6.7 8.1 58.3% 1 3.86s 606 3,167 0
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
GPT-5.3 Chat 5.6 4.7 55.6% 2 10.52s 7,302 6,632 0
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
GPT-5.3 Chat 10.0 10.0 100.0% 0 11.96s 11,019 2,614 0
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
GPT-5.3 Chat 10.0 10.0 100.0% 0 2.21s 7,140 942 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
GPT-5.3 Chat 3.5 4.4 33.3% 2 13.01s 723 8,264 0
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
GPT-5.3 Chat 4.6 10.0 0.0% 0 1.99s 477 319 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
GPT-5.3 Chat 9.8 10.0 100.0% 0 3.51s 660 1,491 0
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
GPT-5.3 Chat 10.0 10.0 100.0% 0 2.99s 642 1,758 0
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
GPT-5.3 Chat 10.0 10.0 100.0% 0 8.36s 5,445 861 0
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
GPT-5.3 Chat 3.0 10.0 0.0% 0 4.38s 195 569 0
GLM 5 3.0 10.0 0.0% 0 67.37s 186 401 12,450

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