Model Comparator

Compare up to four models using the same criteria.

GLM-5.3 (Low)
Z.AI
GPT-5 (High)
OpenAI

Differences only

✓ Best published value among measured models. — Data unavailable. These metrics do not establish an overall ranking.

Model Comparator
Metrics	GLM-5.3 (Low) Z.AI	GPT-5 (High) OpenAI
Intelligence	Best: 23.1	23
Coding	—	37.8
Math	—	94.3
Speed	77.1 t/s	Best: 98.2 t/s
TTFT	Best: 1.72 s	76.8 s
Input · $ / 1M tokens	$1.40×1.1 relative to the lowest price among the compared models	Best: $1.25
Output · $ / 1M tokens	Best: $4.40	$10×2.3 relative to the lowest price among the compared models
Context window	1M	1M
Reasoning	Yes	Yes
Open weights	Yes	No
Cost / task	$1.57	—

Intelligence

GLM-5.3 (Low): Best: 23.1
GPT-5 (High): 23

Coding

GLM-5.3 (Low): —
GPT-5 (High): 37.8

Math

GLM-5.3 (Low): —
GPT-5 (High): 94.3

Speed

GLM-5.3 (Low): 77.1 t/s
GPT-5 (High): Best: 98.2 t/s

TTFT

GLM-5.3 (Low): Best: 1.72 s
GPT-5 (High): 76.8 s

Input · $ / 1M tokens

GLM-5.3 (Low): $1.40×1.1 relative to the lowest price among the compared models
GPT-5 (High): Best: $1.25

Output · $ / 1M tokens

GLM-5.3 (Low): Best: $4.40
GPT-5 (High): $10×2.3 relative to the lowest price among the compared models

Context window

GLM-5.3 (Low): 1M
GPT-5 (High): 1M

Reasoning

GLM-5.3 (Low): Yes
GPT-5 (High): Yes

Open weights

GLM-5.3 (Low): Yes
GPT-5 (High): No

Cost / task

GLM-5.3 (Low): $1.57
GPT-5 (High): —

Each reasoning level remains a separate configuration.

Score and cost

Each line joins the reasoning levels of a compared model; the large point marks the configuration in the table. The top-right corner holds the best score for the lowest cost. Select another point to compare that level.

GLM-5.3 (Low)23.1 · $2.15
GPT-5 (High)23 · $3.44