Claude Haiku 5.5 vs GPT-6 Luna: Release Comparison

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

Comparison of the Claude Haiku 5.5 and GPT-6 Luna releases: 5 and 6 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 11 models.

For intelligence, Claude Haiku 5.5 scores highest: Claude Haiku 5.5 (Max) at 43, against GPT-6 Luna (Max) at 38 for GPT-6 Luna.
For output speed, Claude Haiku 5.5 is fastest: Claude Haiku 5.5 (Max) at 240 t/s, against GPT-6 Luna (Xhigh) at 123 t/s for GPT-6 Luna.
For cost per task, GPT-6 Luna is cheapest: GPT-6 Luna (Low) at $0.0045, against Claude Haiku 5.5 (Low) at $0.02 for Claude Haiku 5.5.

Model Playground

Releases compared


	Claude Haiku 5.5 (max)	Claude Haiku 5.5 (xhigh)	GPT-6 Luna (max)	Claude Haiku 5.5 (high)	GPT-6 Luna (xhigh)	Claude Haiku 5.5 (medium)	GPT-6 Luna (high)	GPT-6 Luna (medium)	Claude Haiku 5.5 (low)	GPT-6 Luna (low)	GPT-6 Luna (non-reasoning)
Intelligence Index	43	41	38	38	35	34	33	30	29	22	18
Finance & Accounting	44	41	40	38	37	35	36	33	29	24	20
Strategy & Ops	40	39	46	37	43	34	41	37	28	23	20
Legal	42	40	40	38	37	36	35	33	31	25	19
Healthcare & Medical	40	35	39	34	36	32	34	32	27	23	21
Engineering	45	43	37	39	34	35	32	29	31	23	21
Economics	51	49	45	46	42	43	40	37	37	30	24
AA-Briefcase v1.1	1575	1524	1336	1440	1235	1369	1186	1097	1114	740	902
GDPval-AA v2.1	1628	1521	1445	1425	1373	1283	1352	1271	1131	1041	1052
AutomationBench-AA	35.4%	36.0%	53.2%	33.7%	47.8%	28.6%	47.8%	40.5%	22.9%	12.0%	9.1%
Terminal-Bench 4.0	32.8%	29.3%	12.6%	21.7%	8.1%	15.2%	4.5%	2.5%	12.6%	0.0%	1.5%
SciCode	55.0%	51.7%	54.6%	48.7%	51.7%	49.0%	50.3%	50.9%	49.2%	46.9%	43.1%
Humanity's Last Exam	44.4%	42.7%	38.5%	37.3%	34.3%	33.8%	32.9%	28.3%	27.0%	20.3%	8.6%
GDP.pdf	20.8%	18.2%	22.8%	17.2%	18.6%	15.2%	18.2%	13.8%	11.2%	9.0%	5.8%
CritPt	18.9%	22.6%	19.4%	18.6%	17.4%	12.9%	15.4%	10.6%	9.1%	2.6%	1.1%
AA-Omniscience	11	6	1	6	−2	4	−6	−5	3	−9	−22
AA-LCR v1.1	82.7%	78.3%	83.3%	77.3%	80.0%	77.3%	79.3%	78.3%	72.0%	74.0%	39.7%

Cost per TaskUSD	$0.21	$0.12	$0.07	$0.08	$0.04	$0.05	$0.03	$0.02	$0.02	$0.0045	$0.01
Input PriceUSD/1M Tokens	$0.10	$0.10	$0.10	$0.10	$0.10	$0.10	$0.10	$0.10	$0.10	$0.10	$0.10
Output PriceUSD/1M Tokens	$0.50	$0.50	$0.50	$0.50	$0.50	$0.50	$0.50	$0.50	$0.50	$0.50	$0.50
Cache Hit PriceUSD/1M Tokens	$0.01	$0.01	$0.01	$0.01	$0.01	$0.01	$0.01	$0.01	$0.01	$0.01	$0.01
Cache Write PriceUSD/1M Tokens	$0.125	$0.125	$0.125	$0.125	$0.125	$0.125	$0.125	$0.125	$0.125	$0.125	$0.125

Output SpeedTokens/s	240	195	122	185	123	174	120	--	181	121	118
Time to First Tokens	332.02	69.39	85.18	25.05	22.35	11.39	14.30	--	8.04	2.60	0.89
Time to First Answer Tokens	332.02	69.39	85.18	25.05	22.35	11.39	14.30	--	8.04	2.60	0.89
End-to-End Response Times	334.10	71.95	89.27	27.75	26.43	14.26	18.45	--	10.81	6.72	5.12
Time per Tasks	425.91	289.00	405.00	189.58	223.66	119.37	162.57	--	60.85	17.59	31.76

Context Window	1M	1M	1M	1M	1M	1M	1M	1M	1M	1M	1M
Creator	Anthropic	Anthropic	OpenAI	Anthropic	OpenAI	Anthropic	OpenAI	OpenAI	Anthropic	OpenAI	OpenAI
License	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	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	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	Supports: text	Supports: text	Supports: text
Providers

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, and 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 Task

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

Most attractive quadrant

Claude Haiku 5.5

GPT-6 Luna

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

Benchmarks

AA-PersonalityBenchNew

Model AvsModel B

AA-PersonalityBench: Expressiveness Index, Claude Haiku 5.5 (max) vs GPT-6 Luna (max)

Chance each model’s answer is judged to show more of each trait from their Elo gap · 50% is an even match

Claude Haiku 5.5 (max)

GPT-6 Luna (max)

Lexically Varied

96%

Metaphorical

89%

11%

Eloquent

73%

27%

Literate

72%

28%

Natural Sounding

54%

46%

Claude Haiku 5.5 vs GPT-6 Luna: Release Comparison

Intelligence

Speed

Cost per Task

Intelligence

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

AA-PersonalityBench: Expressiveness Index, Claude Haiku 5.5 (max) vs GPT-6 Luna (max)