Gemini 3.8 Flash vs Kimi K3: Release Comparison

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

Comparison of the Gemini 3.8 Flash and Kimi K3 releases: 3 and 2 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 5 models.

For intelligence, Kimi K3 scores highest: Kimi K3 (Max) at 44, against Gemini 3.8 Flash (High) at 41 for Gemini 3.8 Flash.
For output speed, Gemini 3.8 Flash is fastest: Gemini 3.8 Flash (High) at 145 t/s, against Kimi K3 (Low) at 49 t/s for Kimi K3.
For cost per task, Gemini 3.8 Flash is cheapest: Gemini 3.8 Flash (Medium) at $0.93, against Kimi K3 (Low) at $1.15 for Kimi K3.

Model Playground

Releases compared


	Kimi K3 (max)	Gemini 3.8 Flash (high)	Gemini 3.8 Flash (medium)	Gemini 3.8 Flash (low)	Kimi K3 (low)
Intelligence Index	44	41	40	33	30
Finance & Accounting	47	47	45	39	32
Strategy & Ops	50	48	48	39	39
Legal	49	52	51	45	34
Healthcare & Medical	45	42	--	--	--
Engineering	43	43	40	34	30
Economics	53	52	50	46	37
AA-Briefcase v1.1	1501	1203	1181	1062	986
GDPval-AA v2.1	1535	1436	1422	1307	1126
AutomationBench-AA	58.3%	59.9%	60.9%	36.5%	49.3%
Terminal-Bench 4.0	12.6%	19.7%	19.7%	10.1%	12.6%
SciCode	59.5%	56.6%	55.1%	55.0%	52.7%
Humanity's Last Exam	46.9%	47.8%	42.1%	37.1%	25.0%
GDP.pdf	22.0%	21.0%	22.8%	18.6%	18.6%
CritPt	23.4%	18.3%	12.3%	4.0%	3.1%
AA-Omniscience	20	30	29	21	4
AA-LCR v1.1	88.7%	81.3%	84.0%	80.7%	79.3%

Cost per TaskUSD	$2.00	$1.24	$0.93	--	$1.15
Input PriceUSD/1M Tokens	$3.00	$0.75	$0.75	$0.75	$3.00
Output PriceUSD/1M Tokens	$15.00	$3.75	$3.75	$3.75	$15.00
Cache Hit PriceUSD/1M Tokens	$0.30	$0.075	$0.075	$0.075	$0.30
Cache Write PriceUSD/1M Tokens	--	$0.75	$0.75	$0.75	--

Output SpeedTokens/s	45	145	--	--	49
Time to First Tokens	3.17	24.48	--	--	3.17
Time to First Answer Tokens	47.79	24.48	--	--	44.20
End-to-End Response Times	58.95	27.92	--	--	54.46
Time per Tasks	944.92	470.12	--	--	246.39

Context Window	1M	1M	1M	1M	1M
Creator	Kimi	Google	Google	Google	Kimi
License	Open	Proprietary	Proprietary	Proprietary	Open
Input Modality	Supports: text and image	Supports: text, image, speech, and video	Supports: text, image, speech, and video	Supports: text, image, speech, and video	Supports: text and image
Output Modality	Supports: text	Supports: text	Supports: text	Supports: text	Supports: text
Providers	+10				+2

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

Gemini 3.8 Flash

Kimi K3

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 Artificial Analysis 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

Gemini 3.8 Flash vs Kimi K3: 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