OpenAI: GPT-5.6 Terra vs Z.ai: GLM 5.2

The average score is effectively tied at 7.8 vs 7.8. GLM 5.2 (medium) has the lower benchmark cost at $0.184 vs $0.676. GPT-5.6 Terra (medium) is faster at 7.11s vs 23.28s, with pass rates of 69.7% vs 80.3%.

Recommended modelGLM 5.2 (medium)It has the best score here (7.8), while costing about 3.7x less than GPT-5.6 Terra (medium).

Last updated at: 2026-07-25

Metric	GPT-5.6 Terra GPT-5.6 Terra medium Release: 2026-07-09	GLM 5.2 GLM 5.2 medium Release: 2026-06-17

Metric	GPT-5.6 Terra GPT-5.6 Terra medium Release: 2026-07-09	GLM 5.2 GLM 5.2 medium Release: 2026-06-17
Score	7.8	7.8
Rank	#46	#45
Reliability	10.0	9.5
Consistency	9.3	8.0
Tests Correct
Attempt pass rate	69.7%	80.3%
Flaky tests	2	4
Total Runs	66	63
Cost per result	4.825	2.159
Total Cost	$0.676	$0.184
Input Price	$2.500 / 1M	$0.793 / 1M
Output Price	$15.000 / 1M	$2.491 / 1M
Total Input Tokens	79,175	37,199
Output Tokens	4,878	12,261
Reasoning Tokens	26,952	49,500
Response Time (avg)	7.11s	23.28s
Response Time (max)	41.68s	101.36s
Response Time (total)	156.42s	488.94s

Hamster playing table tennis

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

#46 GPT-5.6 Terra

medium

Cost: $0.035
Time: 16.3s
Tokens: 2,418 tok

#45 GLM 5.2

medium

Cost: $0.041
Time: 195.8s
Tokens: 9,287 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

Category:

Anti-AI Tricks	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	8.3	10.0	75.0%	0		2.22s	606	172	657
GLM 5.2	10.0	10.0	100.0%	0		5.89s	639	497	2,634

Coding	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	6.1	7.2	55.6%	1		7.19s	7,302	427	4,527
GLM 5.2	8.2	7.2	88.9%	1		40.96s	7,317	1,475	17,123

Combined	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		11.10s	55,976	3,212	2,122
GLM 5.2	5.0	5.0	50.0%	0		51.96s	12,696	458	4,531

Data parsing and extraction	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		872ms	7,140	222	0
GLM 5.2	10.0	10.0	100.0%	0		13.44s	7,149	348	2,345

Domain specific	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	5.3	10.0	33.3%	0		23.45s	723	70	15,327
GLM 5.2	4.1	4.4	44.5%	2		45.47s	551	8,188	11,606

General Intelligence	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	5.5	10.0	0.0%	0		2.37s	477	133	144
GLM 5.2	10.0	10.0	100.0%	0		17.39s	498	54	1,842

Instructions following	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		1.43s	660	89	261
GLM 5.2	9.9	10.0	100.0%	0		7.90s	678	94	1,518

Puzzle Solving	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	8.4	7.4	88.9%	1		3.78s	642	272	1,462
GLM 5.2	8.2	7.2	88.9%	1		13.13s	672	536	4,822

Tool Calling	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	10.0	10.0	100.0%	0		5.09s	5,454	254	246
GLM 5.2	10.0	10.0	100.0%	0		20.41s	6,861	230	550

Trivia	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GPT-5.6 Terra	3.0	10.0	0.0%	0		10.05s	195	27	2,206
GLM 5.2	3.0	10.0	0.0%	0		34.25s	138	381	2,529

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