Gemini 4 Hydrogen vs GPT-6.1 Terra: Release Comparison

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

Comparison of the Gemini 4 Hydrogen and GPT-6.1 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, Gemini 4 Hydrogen scores highest: Gemini 4 Hydrogen (Xhigh) at 54, against GPT-6.1 Terra (Max) at 51 for GPT-6.1 Terra.
For time per task, GPT-6.1 Terra is fastest: GPT-6.1 Terra (Low) at 1.2 min, against Gemini 4 Hydrogen (Low) at 1.3 min for Gemini 4 Hydrogen.
For cost per task, GPT-6.1 Terra is cheapest: GPT-6.1 Terra (Low) at $0.07, against Gemini 4 Hydrogen (Low) at $0.29 for Gemini 4 Hydrogen.

Model Playground

Releases compared


	Gemini 4 Hydrogen (xhigh)	GPT-6.1 Terra (max)	Gemini 4 Hydrogen (high)	GPT-6.1 Terra (xhigh)	GPT-6.1 Terra (high)	Gemini 4 Hydrogen (medium)	GPT-6.1 Terra (medium)	GPT-6.1 Terra (non-reasoning)	GPT-6.1 Terra (low)	Gemini 4 Hydrogen (low)
Intelligence Index	54	51	51	45	42	41	38	31	29	27
Finance & Accounting	58	49	56	48	44	51	42	34	38	41
Strategy & Ops	58	50	55	49	47	52	45	40	42	42
Legal	57	46	55	44	42	51	40	28	37	42
Healthcare & Medical	--	45	--	--	--	--	--	--	--	--
Engineering	60	55	57	49	46	49	43	33	35	36
Economics	55	48	53	46	43	48	41	32	36	38
AA-Briefcase v1.1	1567	1403	1497	1333	1264	1296	1190	1226	1031	947
AutomationBench-AA	76.1%	60.2%	74.4%	59.9%	58.5%	72.0%	57.8%	51.0%	56.2%	60.5%
Terminal-Bench 4.0	53.5%	55.6%	54.0%	46.5%	41.9%	29.3%	32.3%	26.8%	15.2%	6.6%
FrontierCode-AA 2.0	39.0%	42.3%	36.3%	36.9%	37.5%	31.5%	34.5%	33.4%	24.5%	9.3%
AA-Omniscience v1.1	46	30	44	29	28	42	27	−5	23	36
GDP.pdf	27.6%	28.6%	30.0%	26.6%	28.0%	32.8%	28.4%	23.2%	25.6%	28.2%
HLE-Diamond	58.8%	47.3%	54.9%	42.3%	35.4%	47.7%	31.3%	14.5%	24.9%	32.2%
CritPt v2 (Hard Subset)	66.0%	68.0%	61.5%	60.5%	61.5%	61.0%	56.5%	33.5%	50.5%	48.0%
Terminal-Bench-Science 0.1	49.5%	57.6%	41.4%	41.9%	33.3%	15.2%	24.8%	24.3%	7.6%	2.4%

Cost per TaskUSD	$3.16	$0.96	$1.87	$0.40	$0.26	$0.80	$0.17	$0.23	$0.07	$0.29
Input PriceUSD/1M Tokens	$1.50	$1.00	$1.50	$1.00	$1.00	$1.50	$1.00	$1.00	$1.00	$1.50
Output PriceUSD/1M Tokens	$7.50	$5.00	$7.50	$5.00	$5.00	$7.50	$5.00	$5.00	$5.00	$7.50
Cache Hit PriceUSD/1M Tokens	$0.075	$0.05	$0.075	$0.05	$0.05	$0.075	$0.05	$0.05	$0.05	$0.075
Cache Write PriceUSD/1M Tokens	--	$1.25	--	$1.25	$1.25	--	$1.25	$1.25	$1.25	--

Time per TaskMinutes	13.5	14.2	8.3	6.4	4.2	3.7	2.8	2.4	1.2	1.3
Output Speedtok/s	190	70	170	68	66	177	65	66	64	181
Time to First Answer Tokens	37.77	164.71	18.89	32.11	11.57	11.80	4.62	2.10	2.75	5.71
Time to First Tokens	37.77	164.71	18.89	32.11	11.57	11.80	4.62	2.10	2.75	5.71
End-to-End TimeMean of Single-Request Workloads (s)	96.34	357.05	68.50	90.31	47.18	27.44	29.71	24.89	21.75	19.34

Context Window	1M	1M	1M	1M	1M	1M	1M	1M	1M	1M
Creator	Google	OpenAI	Google	OpenAI	OpenAI	Google	OpenAI	OpenAI	OpenAI	Google
License	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary	Proprietary
Input Modality	Supports: text, image, speech, and video	Supports: text and image	Supports: text, image, speech, and video	Supports: text and image	Supports: text and image	Supports: text, image, speech, and video	Supports: text and image	Supports: text and image	Supports: text and image	Supports: text, image, speech, 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

Updated

Intelligence

Artificial Analysis Intelligence Index · Higher is better

Time per Task

Inference time (minutes) per Intelligence Index task · Lower 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 v5.0.1 incorporates 9 evaluations: AA-Briefcase v1.1, AutomationBench-AA, Terminal-Bench 4.0, FrontierCode-AA 2.0, AA-Omniscience v1.1, GDP.pdf, HLE-Diamond, CritPt v2 (Hard Subset), and Terminal-Bench-Science 0.1

Artificial Analysis Intelligence Index v5.0.1 includes: AA-Briefcase v1.1, AutomationBench-AA, Terminal-Bench 4.0, FrontierCode-AA 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

Gemini 4 Hydrogen

GPT-6.1 Terra

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

Time per Intelligence Index Task

Output tokens divided by end-to-end output speed (minutes per Intelligence Index task) · Speed at the model's own endpoint or the median across providers · Lower is better

The weighted average time (minutes) per Artificial Analysis Intelligence Index task: output tokens per task divided by output speed, weighted by each benchmark's weight in the Intelligence Index.

Speed and latency metrics average each endpoint's runs over the past 5 days, and the error rate pools them. We run the benchmark every 6 hours, and endpoints of deprecated models every 18 hours.

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-AA 2.0, AA-Briefcase v1.1 · Higher is better

Economics Index

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

Gemini 4 Hydrogen vs GPT-6.1 Terra: Release Comparison

Intelligence

Time per Task

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

Time per Intelligence Index Task

Time per Intelligence Index Task

Time Period

Capability Scores

Capability Indexes