GLM-5.3 vs GPT-5.6 Terra: Release Comparison

Name: Intelligence
Creator: Artificial Analysis
License: https://artificialanalysis.ai/docs/legal/Terms-of-Use.pdf

Comparison of the GLM-5.3 and GPT-5.6 Terra releases: 2 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 8 models.

For intelligence, GLM-5.3 scores highest: GLM-5.3 (Max) at 45, against GPT-5.6 Terra (Max) at 42 for GPT-5.6 Terra.
For output speed, GPT-5.6 Terra is fastest: GPT-5.6 Terra (Max) at 107 t/s, against GLM-5.3 (Low) at 70 t/s for GLM-5.3.
For cost per task, GPT-5.6 Terra is cheapest: GPT-5.6 Terra (Non-reasoning) at $0.14, against GLM-5.3 (Low) at $0.85 for GLM-5.3.

Model Playground

Releases compared


	GLM-5.3 (max)	GPT-5.6 Terra (max)	GPT-5.6 Terra (xhigh)	GLM-5.3 (low)	GPT-5.6 Terra (high)	GPT-5.6 Terra (medium)	GPT-5.6 Terra (low)	GPT-5.6 Terra (non-reasoning)
Intelligence Index	45	42	38	34	34	30	27	21
Finance & Accounting	45	41	40	35	37	32	30	21
Strategy & Ops	48	47	44	39	40	34	31	23
Legal	42	41	40	33	37	34	31	22
Healthcare & Medical	47	40	38	--	34	31	27	--
Engineering	47	43	38	38	34	31	28	21
Economics	51	45	44	41	42	37	34	24
AA-Briefcase v1.1	1508	1334	1333	1187	1202	1039	1014	948
GDPval-AA v2.1	1650	1452	1447	1322	1376	1265	1109	1098
AutomationBench-AA	62.2%	59.6%	47.1%	52.0%	42.0%	33.5%	29.1%	12.5%
Terminal-Bench 4.0	41.9%	35.4%	10.1%	34.8%	1.5%	1.0%	1.5%	0.5%
SciCode	59.0%	55.0%	52.3%	42.0%	52.4%	50.5%	49.9%	45.1%
Humanity's Last Exam	42.3%	42.9%	41.9%	36.6%	38.5%	33.3%	29.2%	11.4%
GDP.pdf	11.2%	24.0%	24.6%	8.8%	20.8%	17.0%	17.6%	11.2%
CritPt	19.1%	30.0%	27.1%	14.6%	22.9%	17.4%	9.4%	2.0%
AA-Omniscience	14	0	−3	−8	−3	−5	−7	−23
AA-LCR v1.1	79.7%	83.0%	79.0%	72.7%	77.7%	74.0%	71.3%	58.7%

Cost per TaskUSD	$2.01	$1.40	$0.63	$0.85	$0.34	$0.18	$0.14	$0.14
Input PriceUSD/1M Tokens	$1.40	$2.00	$2.00	$1.40	$2.00	$2.00	$2.00	$2.00
Output PriceUSD/1M Tokens	$4.40	$12.00	$12.00	$4.40	$12.00	$12.00	$12.00	$12.00
Cache Hit PriceUSD/1M Tokens	$0.26	$0.20	$0.20	$0.26	$0.20	$0.20	$0.20	$0.20
Cache Write PriceUSD/1M Tokens	--	$2.50	$2.50	--	$2.50	$2.50	$2.50	$2.50

Output SpeedTokens/s	61	107	98	70	93	88	93	90
Time to First Tokens	3.41	136.64	33.29	3.28	10.99	1.66	1.60	0.81
Time to First Answer Tokens	36.15	136.64	33.29	31.77	10.99	1.66	1.60	0.81
End-to-End Response Times	44.34	141.31	38.37	38.90	16.38	7.31	6.97	6.36
Time per Tasks	764.40	362.41	209.82	426.17	122.69	62.80	42.09	34.67

Context Window	1M	1M	1M	1M	1M	1M	1M	1M
Creator	Z AI	OpenAI	OpenAI	Z AI	OpenAI	OpenAI	OpenAI	OpenAI
License	Open	Proprietary	Proprietary	Open	Proprietary	Proprietary	Proprietary	Proprietary
Input Modality	Supports: text	Supports: text and image	Supports: text and image	Supports: text	Supports: text and image	Supports: text and image	Supports: text and image	Supports: text and image
Output Modality	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text
Providers	+18

Intelligence

Artificial Analysis Intelligence Index · Higher is better

Speed

Output tokens per second · Higher is better

Cost per Task

Weighted average cost (USD) per Intelligence Index task · Lower is better

Intelligence

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v4.3.2 incorporates 10 evaluations: AA-Briefcase v1.1, GDPval-AA v2.1, AutomationBench-AA, Terminal-Bench 4.0, SciCode, Humanity's Last Exam, GDP.pdf, CritPt, AA-Omniscience, AA-LCR v1.1

Artificial Analysis Intelligence Index v4.3.2 includes: AA-Briefcase v1.1, GDPval-AA v2.1, AutomationBench-AA, Terminal-Bench 4.0, SciCode, Humanity's Last Exam, GDP.pdf, CritPt, AA-Omniscience, AA-LCR v1.1. See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.

Intelligence Index vs. Cost per Intelligence Index Task

Artificial Analysis Intelligence Index · Weighted average cost (USD) per Artificial Analysis Intelligence Index task

Most attractive quadrant

GLM-5.3

GPT-5.6 Terra

Pareto line

AA-Briefcase v1.1

GDPval-AA v2.1

Cost per Task (USD, Log Scale)

Weighted average cost per Intelligence Index task. Each evaluation’s cost is calculated from input, cache hit, cache write, reasoning, and answer token prices, divided by task count, and weighted by its Intelligence Index weight.

Cost

Cost per Intelligence Index Task

Weighted average cost (USD) per Intelligence Index task · Segmented by token type · Lower is better

Speed & Latency

Output Speed

Output tokens per second · Higher is better

Tokens per second received while the model is generating tokens (ie. after first chunk has been received from the API for models which support streaming).

Figures represent performance of the model's first-party API or the median across providers where a first-party API is not available.

Capability Scores

Capability Indexes

Measures the performance of models on specific capabilities and industries

Finance & Accounting Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Strategy & Ops Index

Incorporates 6 evaluations: GDPval-AA v2.1, AA-Briefcase v1.1, AA-Omniscience, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Legal Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better

Healthcare & Medical Index

Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2.1, AA-Briefcase v1.1, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better

Engineering Index

Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2.1, AA-Briefcase v1.1, Terminal-Bench 4.0 · Higher is better

Economics Index

Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2.1, AA-Briefcase v1.1, AA-LCR v1.1 · Higher is better

GLM-5.3 vs GPT-5.6 Terra: Release Comparison

Intelligence

Speed

Cost per Task

Intelligence

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index

Intelligence Index vs. Cost per Intelligence Index Task

Cost per Intelligence Index Task

Artificial Analysis Intelligence Index

Cost

Cost per Intelligence Index Task

Cost per Intelligence Index Task

Speed & Latency

Output Speed

Output Speed

Model Performance Representation

Capability Scores

Capability Indexes