Qwen3.8 27B 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 Qwen3.8 27B and GPT-5.6 Terra releases: 4 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 10 models.

For intelligence, GPT-5.6 Terra scores highest: GPT-5.6 Terra (Max) at 42, against Qwen3.8 27B (Xhigh) at 34 for Qwen3.8 27B.
For output speed, GPT-5.6 Terra is fastest: GPT-5.6 Terra (Max) at 129 t/s, against Qwen3.8 27B (Low) at 52 t/s for Qwen3.8 27B.
For cost per task, GPT-5.6 Terra is cheapest: GPT-5.6 Terra (Non-reasoning) at $0.14, against Qwen3.8 27B (Xhigh) at $1.01 for Qwen3.8 27B.

Model Playground

Releases compared


	GPT-5.6 Terra (max)	GPT-5.6 Terra (xhigh)	GPT-5.6 Terra (high)	Qwen3.8 27B (xhigh)	GPT-5.6 Terra (medium)	Qwen3.8 27B (medium)	GPT-5.6 Terra (low)	Qwen3.8 27B (low)	GPT-5.6 Terra (non-reasoning)	Qwen3.8 27B (non-reasoning)
Intelligence Index	42	38	34	34	30	28	27	26	21	20
Finance & Accounting	41	40	37	34	32	28	30	27	21	19
Strategy & Ops	47	44	40	37	34	34	31	29	23	16
Legal	41	40	37	35	34	27	31	28	22	22
Healthcare & Medical	40	38	34	34	31	--	27	--	--	--
Engineering	43	38	34	33	31	25	28	24	21	22
Economics	45	44	42	43	37	31	34	32	24	30
AA-Briefcase v1.1	1334	1333	1202	1397	1039	1377	1014	1273	947	898
GDPval-AA v2.1	1451	1447	1376	1419	1264	1381	1108	1362	1097	1072
AutomationBench-AA	59.6%	47.1%	42.0%	48.2%	33.5%	40.3%	29.1%	30.1%	12.5%	12.4%
Terminal-Bench 4.0	35.4%	10.1%	1.5%	5.6%	1.0%	5.1%	1.5%	2.5%	0.5%	0.0%
SciCode	55.0%	52.3%	52.4%	46.6%	50.5%	39.0%	49.9%	40.0%	45.1%	36.2%
Humanity's Last Exam	42.9%	41.9%	38.5%	33.9%	33.3%	14.1%	29.2%	14.0%	11.4%	12.1%
GDP.pdf	24.0%	24.6%	20.8%	16.6%	17.0%	12.8%	17.6%	10.4%	11.2%	5.2%
CritPt	30.0%	27.1%	22.9%	5.4%	17.4%	0.0%	9.4%	0.0%	2.0%	0.3%
AA-Omniscience	0	−3	−3	−10	−5	−36	−7	−27	−23	−8
AA-LCR v1.1	83.0%	79.0%	77.7%	82.0%	74.0%	79.7%	71.3%	77.3%	58.7%	69.3%

Cost per TaskUSD	$1.40	$0.63	$0.34	$1.01	$0.18	$1.13	$0.14	$1.05	$0.14	$2.49
Input PriceUSD/1M Tokens	$2.00	$2.00	$2.00	$0.50	$2.00	$0.50	$2.00	$0.50	$2.00	$0.50
Output PriceUSD/1M Tokens	$12.00	$12.00	$12.00	$3.00	$12.00	$3.00	$12.00	$3.00	$12.00	$3.00
Cache Hit PriceUSD/1M Tokens	$0.20	$0.20	$0.20	$0.10	$0.20	$0.10	$0.20	$0.10	$0.20	$0.10
Cache Write PriceUSD/1M Tokens	$2.50	$2.50	$2.50	--	$2.50	--	$2.50	--	$2.50	--

Output SpeedTokens/s	129	109	103	46	104	50	100	52	101	52
Time to First Tokens	128.27	37.76	7.05	3.79	1.75	3.92	1.48	3.79	0.69	3.93
Time to First Answer Tokens	128.27	37.76	7.05	47.38	1.75	44.23	1.48	41.93	0.69	3.93
End-to-End Response Times	132.16	42.35	11.91	58.28	6.57	54.31	6.48	51.47	5.62	13.62
Time per Tasks	309.10	185.74	108.51	1,121.76	52.82	993.41	37.94	829.42	30.81	545.11

Context Window	1M	1M	1M	256k	1M	256k	1M	256k	1M	256k
Creator	OpenAI	OpenAI	OpenAI	Alibaba	OpenAI	Alibaba	OpenAI	Alibaba	OpenAI	Alibaba
License	Proprietary	Proprietary	Proprietary	Open	Proprietary	Open	Proprietary	Open	Proprietary	Open
Input Modality	Supports: text and image	Supports: text and image	Supports: text and image	Supports: text, image, and video	Supports: text and image	Supports: text, image, and video	Supports: text and image	Supports: text, image, and video	Supports: text and image	Supports: text, image, and video
Output Modality	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text
Providers				+6						+3

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

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 Artificial Analysis 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

Qwen3.8 27B 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