GLM 5.1 vs GLM 5.3 (low)

Compared models

Recommended model GLM 5.1

It has the strongest score in this comparison (6.5) and the best overall balance of cost and response time across all 2 models.

Metric	GLM 5.1 GLM 5.1 none Release: 2026-04-07	GLM 5.3 GLM 5.3 low Release: 2026-08-20

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

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

none

Reached the allocated time limit (300 seconds) without receiving showcase output.

low

Category:

Agentic	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	10.0	10.0	100.0%	0		107.19s	134,737	5,683	0
GLM 5.3	5.2	3.2	33.3%	1		48.84s	142,882	2,259	1,039

Anti-AI Tricks	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	4.0	6.3	25.0%	2		2.11s	555	305	0
GLM 5.3	6.9	7.9	66.7%	1		4.16s	639	266	249

Coding	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	3.9	9.7	0.0%	0		4.96s	7,256	525	0
GLM 5.3	6.2	6.9	55.6%	1		21.02s	7,317	368	6,764

Combined	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	2.8	1.8	33.3%	2		46.88s	99,907	12,768	0
GLM 5.3	3.8	5.8	33.3%	1		53.02s	80,209	6,729	5,209

Data parsing and extraction	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	10.0	10.0	100.0%	0		1.08s	7,107	204	0
GLM 5.3	10.0	10.0	100.0%	0		3.42s	7,149	210	56

Domain specific	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	5.3	7.2	44.4%	1		2.27s	697	24	0
GLM 5.3	5.3	10.0	33.3%	0		19.23s	759	35	3,384

General Intelligence	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	5.0	10.0	0.0%	0		790ms	477	39	0
GLM 5.3	4.1	2.7	33.3%	1		4.70s	498	163	0

Instructions following	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	9.8	10.0	100.0%	0		1.98s	636	66	0
GLM 5.3	10.0	10.0	100.0%	0		3.40s	678	72	81

Puzzle Solving	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	7.7	10.0	66.7%	0		1.45s	609	151	0
GLM 5.3	10.0	10.0	100.0%	0		4.20s	672	389	225

Tool Calling	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	10.0	10.0	100.0%	0		10.68s	6,789	300	0
GLM 5.3	10.0	10.0	100.0%	0		18.45s	6,861	231	0

Trivia	Score	Consistency	Attempt pass rate	Flaky tests	Tests Correct	Response Time (avg)	Input Tokens	Output Tokens	Reasoning Tokens
GLM 5.1	3.0	10.0	0.0%	0		2.34s	186	11	0
GLM 5.3	3.0	10.0	0.0%	0		7.42s	207	69	308

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