GPT-6 Luna vs DeepSeek V4.1 Flash: Release Comparison

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

Comparison of the GPT-6 Luna and DeepSeek V4.1 Flash releases: 6 and 2 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 8 models.

For intelligence, DeepSeek V4.1 Flash scores highest: DeepSeek V4.1 Flash (Max) at 39, against GPT-6 Luna (Max) at 38 for GPT-6 Luna.
For output speed, DeepSeek V4.1 Flash is fastest: DeepSeek V4.1 Flash (Max) at 179 t/s, against GPT-6 Luna (High) at 120 t/s for GPT-6 Luna.
For cost per task, GPT-6 Luna is cheapest: GPT-6 Luna (Low) at $0.0045, against DeepSeek V4.1 Flash (Non-reasoning) at $0.15 for DeepSeek V4.1 Flash.

Model Playground

Releases compared


	DeepSeek V4.1 Flash (max)	GPT-6 Luna (max)	GPT-6 Luna (xhigh)	GPT-6 Luna (high)	GPT-6 Luna (medium)	DeepSeek V4.1 Flash (non-reasoning)	GPT-6 Luna (low)	GPT-6 Luna (non-reasoning)
Intelligence Index	39	38	35	33	30	25	22	18
Finance & Accounting	45	40	37	36	33	30	24	20
Strategy & Ops	52	46	43	41	37	36	23	20
Legal	41	40	37	35	33	30	25	19
Healthcare & Medical	41	37	--	--	--	--	--	--
Engineering	39	37	34	32	29	25	23	21
Economics	44	45	42	40	37	32	30	24
AA-Briefcase v1.1	1422	1336	1237	1186	1099	1118	741	903
GDPval-AA v2.1	1600	1432	1364	1340	1262	1341	1033	1045
AutomationBench-AA	68.9%	53.2%	47.8%	47.8%	40.5%	47.8%	12.0%	9.1%
Terminal-Bench 4.0	26.8%	12.6%	8.1%	4.5%	2.5%	5.6%	0.0%	1.5%
SciCode	51.9%	54.6%	51.7%	50.3%	50.9%	35.5%	46.9%	43.1%
Humanity's Last Exam	39.2%	38.5%	34.3%	32.9%	28.3%	10.8%	20.3%	8.6%
GDP.pdf	12.8%	22.8%	18.6%	18.2%	13.8%	3.8%	9.0%	5.8%
CritPt	14.3%	19.4%	17.4%	15.4%	10.6%	0.3%	2.6%	1.1%
AA-Omniscience	−5	1	−2	−6	−5	−10	−9	−22
AA-LCR v1.1	84.0%	83.3%	80.0%	79.3%	78.3%	55.3%	74.0%	39.7%

Cost per TaskUSD	$0.27	$0.07	$0.04	$0.03	$0.02	$0.15	$0.0045	$0.01
Input PriceUSD/1M Tokens	$0.30	$0.10	$0.10	$0.10	$0.10	$0.30	$0.10	$0.10
Output PriceUSD/1M Tokens	$1.20	$0.50	$0.50	$0.50	$0.50	$1.20	$0.50	$0.50
Cache Hit PriceUSD/1M Tokens	$0.006	$0.01	$0.01	$0.01	$0.01	$0.006	$0.01	$0.01
Cache Write PriceUSD/1M Tokens	--	$0.125	$0.125	$0.125	$0.125	--	$0.125	$0.125

Output SpeedTokens/s	179	116	112	120	--	171	119	111
Time to First Tokens	1.12	110.41	40.05	19.10	--	1.08	2.64	0.90
Time to First Answer Tokens	12.28	110.41	40.05	19.10	--	1.08	2.64	0.90
End-to-End Response Times	15.07	114.71	44.53	23.26	--	4.00	6.83	5.39
Time per Tasks	350.10	435.06	247.25	162.17	--	201.10	18.00	33.68

Context Window	1M	1M	1M	1M	1M	1M	1M	1M
Creator	DeepSeek	OpenAI	OpenAI	OpenAI	OpenAI	DeepSeek	OpenAI	OpenAI
License	Open	Proprietary	Proprietary	Proprietary	Proprietary	Open	Proprietary	Proprietary
Input Modality	Supports: text and image	Supports: text and image	Supports: text and image	Supports: text and image	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	+15					+4

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-6 Luna

DeepSeek V4.1 Flash

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

GPT-6 Luna vs DeepSeek V4.1 Flash: 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