GPT-6.1 Sol vs GPT-6 Astra: Release Comparison

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

Comparison of the GPT-6.1 Sol and GPT-6 Astra releases: 5 and 5 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-6 Astra scores highest: GPT-6 Astra (Max) at 53, against GPT-6.1 Sol (Max) at 52 for GPT-6.1 Sol.
For output speed, GPT-6 Astra is fastest: GPT-6 Astra (Max) at 66 t/s, against GPT-6.1 Sol (Max) at 56 t/s for GPT-6.1 Sol.
For cost per task, GPT-6.1 Sol is cheapest: GPT-6.1 Sol (Low) at $0.13, against GPT-6 Astra (Low) at $0.82 for GPT-6 Astra.

Model Playground

Releases compared


	GPT-6 Astra (max)	GPT-6 Astra (xhigh)	GPT-6.1 Sol (max)	GPT-6.1 Sol (xhigh)	GPT-6 Astra (high)	GPT-6.1 Sol (high)	GPT-6 Astra (medium)	GPT-6.1 Sol (medium)	GPT-6 Astra (low)	GPT-6.1 Sol (low)
Intelligence Index	53	52	52	51	51	50	50	48	46	42
Finance & Accounting	55	54	54	53	53	53	52	50	49	45
Strategy & Ops	57	57	57	56	55	55	54	53	50	46
Legal	59	58	58	57	58	56	57	54	53	50
Healthcare & Medical	52	--	51	--	--	--	--	--	--	--
Engineering	55	55	54	53	53	52	52	50	48	44
Economics	60	59	59	58	58	58	58	56	55	52
AA-Briefcase v1.1	1569	1547	1557	1504	1506	1465	1461	1361	1257	1117
GDPval-AA v2.1	1573	1556	1594	1538	1523	1511	1486	1450	1389	1315
AutomationBench-AA	68.5%	67.2%	64.9%	66.6%	66.6%	64.5%	64.6%	62.6%	59.1%	52.6%
Terminal-Bench 4.0	59.1%	59.6%	56.1%	54.0%	54.0%	51.5%	49.5%	48.0%	41.9%	30.8%
SciCode	56.5%	55.7%	54.2%	55.7%	55.4%	55.8%	54.2%	53.2%	54.1%	53.2%
Humanity's Last Exam	54.7%	54.6%	52.9%	52.6%	53.1%	51.4%	52.7%	49.9%	49.2%	47.4%
GDP.pdf	31.0%	32.2%	31.0%	31.8%	31.0%	32.0%	30.4%	30.0%	30.4%	27.0%
CritPt	31.7%	31.4%	31.7%	31.7%	28.9%	30.0%	29.1%	27.7%	26.3%	24.9%
AA-Omniscience	43	43	42	41	44	41	42	40	41	38
AA-LCR v1.1	80.7%	80.0%	83.0%	79.7%	80.0%	82.3%	79.7%	83.3%	80.0%	84.0%

Cost per TaskUSD	$3.26	$2.31	$0.72	$0.39	$1.73	$0.32	$1.54	$0.21	$0.82	$0.13
Input PriceUSD/1M Tokens	$10.00	$10.00	$2.00	$2.00	$10.00	$2.00	$10.00	$2.00	$10.00	$2.00
Output PriceUSD/1M Tokens	$50.00	$50.00	$10.00	$10.00	$50.00	$10.00	$50.00	$10.00	$50.00	$10.00
Cache Hit PriceUSD/1M Tokens	$1.00	$1.00	$0.10	$0.10	$1.00	$0.10	$1.00	$0.10	$1.00	$0.10
Cache Write PriceUSD/1M Tokens	$12.50	$12.50	$2.50	$2.50	$12.50	$2.50	$12.50	$2.50	$12.50	$2.50

Output SpeedTokens/s	66	61	56	53	59	49	58	45	56	44
Time to First Tokens	265.10	130.15	206.49	133.08	49.58	37.49	4.65	4.12	2.26	2.80
Time to First Answer Tokens	265.10	130.15	206.49	133.08	49.58	37.49	4.65	4.12	2.26	2.80
End-to-End Response Times	272.62	138.32	215.45	142.47	58.13	47.70	13.24	15.19	11.22	14.30
Time per Tasks	403.82	266.05	680.58	322.40	196.28	261.19	165.14	179.89	78.94	89.57

Context Window	1M	1M	1M	1M	1M	1M	1M	1M	1M	1M
Creator	OpenAI	OpenAI	OpenAI	OpenAI	OpenAI	OpenAI	OpenAI	OpenAI	OpenAI	OpenAI
License	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
Output Modality	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, 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

GPT-6.1 Sol

GPT-6 Astra

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

AA-PersonalityBenchNew

Model AvsModel B

AA-PersonalityBench: Expressiveness Index, GPT-6.1 Sol (max) vs GPT-6 Astra (max)

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

GPT-6.1 Sol (max)

GPT-6 Astra (max)

Eloquent

42%

58%

Lexically Varied

44%

56%

Natural Sounding

44%

56%

Metaphorical

47%

53%

Literate

51%

49%

GPT-6.1 Sol vs GPT-6 Astra: 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

AA-PersonalityBenchNew

AA-PersonalityBench: Expressiveness Index, GPT-6.1 Sol (max) vs GPT-6 Astra (max)