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Head-to-head comparison

DeepSeek-V4.1-Flash vs. Kimi K3

Compare published benchmark results from matching versions and cohorts, API pricing, and technical specifications. Any documented test setup differences remain visible.

shared result series
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distinct benchmarks
0
latest retrieval
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Specifications

General specifications

Release date, availability, context window, architecture, and published parameter counts at a glance. Undisclosed details remain marked as unavailable.

Specifications for DeepSeek-V4.1-Flash and Kimi K3
AttributeDeepSeek-V4.1-FlashKimi K3
ProviderDeepSeekMoonshot AI
ReleasedSep 10, 2026Jul 16, 2026
AvailabilityActiveActive
Model typeOpen WeightsOpen Weights
Parameters552B2.8T, 104B active
ArchitectureMixture of ExpertsMixture of Experts
Context window1,000,000 tokens1,048,576 tokens
Knowledge cutoffNot publishedNot published
Technical sourcesModelModel

Pricing

API pricing compared

The table compares official standard API rates per 1M tokens, including published cache pricing. Batch, fast, priority, regional surcharges, tool calls, and cloud platform pricing are excluded.

API pricing for DeepSeek-V4.1-Flash and Kimi K3
Price typeDeepSeek-V4.1-FlashKimi K3
API input$0.15$3
API output$0.6$15
Cache read$0.$0.3
Cache write (5 min.)Not listedNot listed
Cache write (1 hr.)Not listedNot listed
Price verified09/22/2026 Source07/30/2026 Source
DeepSeek-V4.1-FlashKimi K3
API inputUSD per 1M tokens, base tier
DeepSeek-V4.1-FlashLower price$0.15
Kimi K3$3
API outputUSD per 1M tokens, base tier
DeepSeek-V4.1-FlashLower price$0.6
Kimi K3$15
Cache readUSD per 1M tokens, base tier
DeepSeek-V4.1-FlashLower price$0.003
Kimi K3$0.3

Key to the marks:better valuebetter, but not conclusivetie

Pricing by provider

Direct developer pricing and provider endpoint tariffs routed through OpenRouter are listed separately. Prices are in USD per 1M tokens. Context-dependent direct tiers plus regional, Flex, Priority, and other OpenRouter tariffs remain individually identifiable.

Provider pricing for DeepSeek-V4.1-Flash and Kimi K3
ModelProviderPurchase route and tariffInput per 1M tokensOutput per 1M tokensSource
DeepSeek-V4.1-FlashDeepSeekDirect from developerStandard API$0.15$0.6Source09/22/2026
AlibabaVia OpenRouteralibaba$0.3$1.2Source09/22/2026
AtlasCloudVia OpenRouteratlas-cloud/fp8$0.3$1.2Source09/22/2026
BaseTenVia OpenRouterbaseten/fp8#1$0.3$1.2Source09/22/2026
BaseTenVia OpenRouterbaseten/fp8#2$0.3$1.2Source09/22/2026
CoreWeaveVia OpenRoutercoreweave/fp8$0.2$0.65Source09/22/2026
DeepInfraVia OpenRouterdeepinfra/fp8$0.14Lowest listed price: $0.42Source09/22/2026
DeepSeekVia OpenRouterdeepseek$0.15$0.6Source09/22/2026
DigitalOceanVia OpenRouterdigitalocean$0.3$1.2Source09/22/2026
FireworksVia OpenRouterfireworks$0.22$0.66Source09/22/2026
GMICloudVia OpenRoutergmicloud/fp8$0.285$1.14Source09/22/2026
KreaVia OpenRouterkrea/fp8$0.225$0.9Source09/22/2026
MakoraVia OpenRoutermakora$0.3$1.2Source09/22/2026
ModalVia OpenRoutermodal$0.3$1.2Source09/22/2026
MorphVia OpenRoutermorphLowest listed price: $0.12$0.48Source09/22/2026
NovitaVia OpenRouternovita/fp8$0.285$1.14Source09/22/2026
PhalaVia OpenRouterphala$0.276$1.104Source09/22/2026
RelaceVia OpenRouterrelace/fp4$0.13$0.52Source09/22/2026
Sail ResearchVia OpenRoutersail-research/fp4$0.2$0.6Source09/22/2026
SiliconFlowVia OpenRoutersiliconflow/fp8$0.3$1.2Source09/22/2026
StreamLakeVia OpenRouterstreamlake/fp8$0.2197$0.8788Source09/22/2026
TogetherVia OpenRoutertogether$0.3$1.2Source09/22/2026
VeniceVia OpenRoutervenice/fp8$0.375$1.5Source09/22/2026
WaferVia OpenRouterwafer$0.2$0.6Source09/22/2026
Kimi K3Moonshot AIDirect from developerStandard API$3$15Source07/30/2026
AlibabaVia OpenRouteralibaba$3.45$17.25Source09/22/2026
BaseTenVia OpenRouterbaseten/fp8$3$15Source09/22/2026
ChutesVia OpenRouterchutes/mxfp4$3$15Source09/22/2026
DeepInfraVia OpenRouterdeepinfra/bf16$2.85$14.25Source09/22/2026
DigitalOceanVia OpenRouterdigitalocean$2.55$12.95Source09/22/2026
FireworksVia OpenRouterfireworks$3$15Source09/22/2026
FireworksVia OpenRouterfireworks/fast$4.5$22.5Source09/22/2026
FireworksVia OpenRouterfireworks/us$3.3$16.5Source09/22/2026
InferenceNetVia OpenRouterinference-net/fp4Lowest listed price: $1.5Lowest listed price: $7.5Source09/22/2026
MakoraVia OpenRoutermakora$2.55$12.75Source09/22/2026
ModalVia OpenRoutermodal/mxfp4$3$15Source09/22/2026
Moonshot AIVia OpenRoutermoonshotai/mxfp4$3$15Source09/22/2026
MorphVia OpenRoutermorph$2.125$11.9Source09/22/2026
MorphVia OpenRoutermorph/fast$6$22.5Source09/22/2026
ParasailVia OpenRouterparasail/fp4$3$15Source09/22/2026
PhalaVia OpenRouterphala$2.07$10.35Source09/22/2026
RelaceVia OpenRouterrelace/fp4$1.7$8.5Source09/22/2026
Sail ResearchVia OpenRoutersail-research/fp4$2.144$10.758Source09/22/2026
TogetherVia OpenRoutertogether$3$15Source09/22/2026
WaferVia OpenRouterwafer$2.4$10.95Source09/22/2026

Performance

Shared benchmarks

Only published results with the same benchmark version, task, metric, and comparison cohort are paired. Different reasoning levels, agents, harnesses, or output limits appear directly in the table.

Capability profile from matched benchmarks

Each axis averages directly matched benchmark families. A value of 100 means the stronger value within this pair, not a universal quality score.

Not enough directly matched categories for a reliable radar

Only 0 of at least 5 categories have comparable, direct model measurements. The benchmark tables below show the available evidence without filling missing axes.

No directly comparable result series yet

No published benchmark for DeepSeek-V4.1-Flash and Kimi K3 currently matches in version, task, metric, and comparison cohort. We therefore show no estimated or blended values.

Our model tests

Our tests

Compare how the models respond to the same prompt. Each test shows the first attempt, with no subsequent fixes to the generated code. These results do not contribute to an overall score.

Pelican on a bicycle

A community classic for free-form SVG drawing.

DeepSeek-V4.1-Flash

Not tested yet

Kimi K3

API access was unavailable for this run. The model was not evaluated.

Reasoning (requested): high

First attempt
Run date
7 Sept 2026
API provider
openrouter
Requested API model
moonshotai/kimi-k3
Reasoning setting
high
Pinned endpoint
Moonshot AI | moonshotai/kimi-k3-20260715
Temperature
Provider default
Token limit including reasoning
8,192 tokens
Test protocol
community-visual-tests-v1
Technical checks
Not run

Not yet visually reviewed. A successful recording does not confirm correct physics or full compliance with the prompt.

Prompt and test conditions

Generate an SVG of a pelican riding a bicycle

Token limit including reasoning: 8,192 tokens

Task origin (Simon Willison)

How to read this comparison

Winning one benchmark is not an overall verdict

Your workload, budget, and required context length matter most. A coding benchmark says little about visual understanding or agent performance.

The standard price table uses direct developer rates. The provider comparison labels OpenRouter endpoints, regions, and special tariffs separately.

Every result links to its measurement source and retrieval date. Labels distinguish vendor reports, official benchmark leaderboards, and independent evaluations. Disputed or archived results are excluded.

More matchups

Compare DeepSeek-V4.1-Flash and Kimi K3 with other leading models using the same data and benchmark logic.

View the complete LLM comparison