Qwen3.8 27B vs Qwen3.5 397B A17B: Release Comparison

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

Comparison of the Qwen3.8 27B and Qwen3.5 397B A17B releases: 4 and 2 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 6 models.

For output speed, Qwen3.5 397B A17B is fastest: Qwen3.5 397B A17B (Non-reasoning) at 59 t/s, against Qwen3.8 27B (Medium) at 51 t/s for Qwen3.8 27B.

Model Playground

Releases compared


	Qwen3.8 27B (xhigh)	Qwen3.8 27B (medium)	Qwen3.8 27B (low)	Qwen3.8 27B (non-reasoning)	Qwen3.5 397B A17B	Qwen3.5 397B A17B (non-reasoning)
Intelligence Index	20	17	16	10	--	--
Finance & Accounting	36	29	28	22	--	--
Strategy & Ops	39	34	29	16	--	--
Legal	33	26	27	22	--	--
Healthcare & Medical	35	24	23	19	--	--
Engineering	28	22	21	17	--	--
Economics	35	29	28	22	--	--
AA-Briefcase v1.1	1393	1373	1270	901	563	--
AutomationBench-AA	48.2%	40.3%	30.1%	12.4%	6.9%	--
Terminal-Bench 4.0	5.6%	5.1%	2.5%	0.0%	0.0%	--
FrontierCode 2.0	14.9%	11.5%	12.4%	3.7%	--	--
AA-Omniscience v1.1	−6	−36	−21	−7	--	--
GDP.pdf	16.4%	12.8%	10.4%	5.2%	12.2%	--
HLE-Diamond	15.3%	6.7%	6.8%	4.2%	12.4%	--
CritPt v2 (Hard Subset)	4.0%	16.5%	5.5%	2.0%	--	--
Terminal-Bench-Science 0.1	0.5%	1.0%	0.5%	0.0%	--	--

Cost per TaskUSD	$3.53	$2.16	$1.91	$3.77	--	--
Input PriceUSD/1M Tokens	$0.50	$0.50	$0.50	$0.50	$0.60	$0.60
Output PriceUSD/1M Tokens	$3.00	$3.00	$3.00	$3.00	$3.60	$3.60
Cache Hit PriceUSD/1M Tokens	$0.10	$0.10	$0.10	$0.10	--	--
Cache Write PriceUSD/1M Tokens	--	--	--	--	--	--

Output SpeedTokens/s	41	51	48	46	57	59
Time to First Tokens	4.01	4.09	3.93	4.02	2.22	2.21
Time to First Answer Tokens	52.66	43.23	45.40	4.02	58.07	2.21
End-to-End Response Times	64.83	53.02	55.77	14.99	66.83	10.72
Time per Tasks	1,842.60	1,579.30	1,470.44	902.48	--	--

Context Window	256k	256k	256k	256k	262k	262k
Creator	Alibaba	Alibaba	Alibaba	Alibaba	Alibaba	Alibaba
License	Open	Open	Open	Open	Open	Open
Input Modality	Supports: text, image, and video	Supports: text, image, and video	Supports: text, image, and video	Supports: text, image, and video	Supports: text and image	Supports: text and image
Output Modality	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text
Providers	+7			+4	+3	+2

Updated

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

IntelligenceUpdated

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v5.0 incorporates 9 evaluations: AA-Briefcase v1.1, AutomationBench-AA, Terminal-Bench 4.0, FrontierCode 2.0, AA-Omniscience v1.1, GDP.pdf, HLE-Diamond, CritPt v2 (Hard Subset), and Terminal-Bench-Science 0.1

Artificial Analysis Intelligence Index v5.0 includes: AA-Briefcase v1.1, AutomationBench-AA, Terminal-Bench 4.0, FrontierCode 2.0, AA-Omniscience v1.1, GDP.pdf, HLE-Diamond, CritPt v2 (Hard Subset), Terminal-Bench-Science 0.1. See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.

Intelligence Index vs. Cost per Task

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

Most attractive quadrant

Qwen3.8 27B

Pareto line

AA-Briefcase v1.1

AutomationBench-AA

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 5 evaluations: AA-Briefcase v1.1, AA-Omniscience v1.1, HLE-Diamond, AutomationBench-AA, GDP.pdf · Higher is better

Strategy & Ops Index

Incorporates 4 evaluations: AutomationBench-AA, AA-Briefcase v1.1, AA-Omniscience v1.1, GDP.pdf · Higher is better

Legal Index

Incorporates 5 evaluations: AA-Omniscience v1.1, AA-Briefcase v1.1, HLE-Diamond, GDP.pdf, AutomationBench-AA · Higher is better

Healthcare & Medical Index

Incorporates 5 evaluations: AA-Omniscience v1.1, AA-Briefcase v1.1, MLCR-AA, AutomationBench-AA, HLE-Diamond · Higher is better

Engineering Index

Incorporates 7 evaluations: AA-Omniscience v1.1, CritPt v2 (Hard Subset), Terminal-Bench-Science 0.1, HLE-Diamond, Terminal-Bench 4.0, FrontierCode 2.0, AA-Briefcase v1.1 · Higher is better

Economics Index

Incorporates 4 evaluations: AA-Briefcase v1.1, AA-Omniscience v1.1, HLE-Diamond, GDP.pdf · Higher is better

Benchmarks

AA-PersonalityBenchNew

Personality Indexes

Each axis is one of 8 personality indexes: the mean of its traits’ Elo z-scores, percentile ranked from 1 to 100 across all models evaluated in the benchmark

Qwen3.8 27B vs Qwen3.5 397B A17B: Release Comparison

Intelligence

Speed

Cost per Task

IntelligenceUpdated

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index

Intelligence Index vs. Cost per 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

Benchmarks

AA-PersonalityBenchNew

Personality Indexes