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Head-to-head comparison

DeepSeek-V4-Flash vs. GLM-5.3-Flash

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

shared result series
0
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-Flash and GLM-5.3-Flash
AttributeDeepSeek-V4-FlashGLM-5.3-Flash
ProviderDeepSeekZ.ai
ReleasedApr 24, 2026Aug 26, 2026
AvailabilityLimited accessOpen Source
Model typeOpen WeightsOpen Weights
Parameters284B, 13B active320B, 18B active
ArchitectureMixture of ExpertsMixture of Experts
Context window1,000,000 tokens1,000,000 tokens
Knowledge cutoffNot publishedNot published
Technical sourcesModelModel, Context

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-Flash and GLM-5.3-Flash
Price typeDeepSeek-V4-FlashGLM-5.3-Flash
API input$0.14$0.15
API output$0.28$0.5
Cache readNot listed$0.03
Cache write (5 min.)Not listedNot listed
Cache write (1 hr.)Not listedNot listed
Price verified10/15/2026 Source09/22/2026 Source
DeepSeek-V4-FlashGLM-5.3-Flash
API inputUSD per 1M tokens, base tier
DeepSeek-V4-FlashLower price$0.14
GLM-5.3-Flash$0.15
API outputUSD per 1M tokens, base tier
DeepSeek-V4-FlashLower price$0.28
GLM-5.3-Flash$0.5

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-Flash and GLM-5.3-Flash
ModelProviderPurchase route and tariffInput per 1M tokensOutput per 1M tokensSource
DeepSeek-V4-FlashAlibabaVia OpenRouteralibaba$0.352$1.056Source10/15/2026
AlibabaVia OpenRouteralibaba/us-east-1$0.374$1.122Source10/15/2026
AtlasCloudVia OpenRouteratlas-cloud/fp4$0.44$1.32Source10/15/2026
BaiduVia OpenRouterbaidu/fp8$0.44$1.32Source10/15/2026
BaseTenVia OpenRouterbaseten/fp8$0.13$0.26Source10/15/2026
BaseTenVia OpenRouterbaseten/fp8/us$0.13$0.26Source10/15/2026
CloudflareVia OpenRoutercloudflare$0.44$1.32Source10/15/2026
CohereVia OpenRoutercohere$0.14$0.28Source10/15/2026
CoreWeaveVia OpenRoutercoreweave/fp8$0.13$0.28Source10/15/2026
DeepInfraVia OpenRouterdeepinfra/fp8$0.06Lowest listed price: $0.18Source10/15/2026
DigitalOceanVia OpenRouterdigitalocean$0.119$0.238Source10/15/2026
GMICloudVia OpenRoutergmicloud/fp8$0.286$0.858Source10/15/2026
InceptronVia OpenRouterinceptron/fp4$0.1296$0.6Source10/15/2026
Mancer 2Via OpenRoutermancer/fp8$0.2$0.6Source10/15/2026
NovitaVia OpenRouternovita/fp8$0.4092$1.2276Source10/15/2026
OpenInferenceVia OpenRouteropen-inference/fp4Lowest listed price: $0.0144$0.576Source10/15/2026
ParasailVia OpenRouterparasail/fp8$0.14$0.28Source10/15/2026
PhalaVia OpenRouterphala$0.308$0.924Source10/15/2026
RekaVia OpenRouterreka$0.021$0.528Source10/15/2026
RelaceVia OpenRouterrelace/fp4$0.016$0.64Source10/15/2026
Sail ResearchVia OpenRoutersail-research/fp4$0.1$0.3Source10/15/2026
Sail ResearchVia OpenRoutersail-research/us$0.019$0.42Source10/15/2026
SiliconFlowVia OpenRoutersiliconflow/fp8$0.22$0.66Source10/15/2026
StreamLakeVia OpenRouterstreamlake/fp8$0.132$0.396Source10/15/2026
TogetherVia OpenRoutertogether$0.14$0.28Source10/15/2026
VeniceVia OpenRoutervenice$0.13$0.26Source10/15/2026
WaferVia OpenRouterwafer/fast$0.13$0.23Source10/15/2026
GLM-5.3-FlashZ.aiDirect from developerStandard API$0.15$0.5Source09/22/2026
AtlasCloudVia OpenRouteratlas-cloud/fp8$0.15$0.5Source10/15/2026
CoreWeaveVia OpenRoutercoreweave/nvfp4$0.15$0.5Source10/15/2026
CrusoeVia OpenRoutercrusoe/fp4$0.15$0.5Source10/15/2026
DecartVia OpenRouterdecart/fp4$0.093$0.31Source10/15/2026
DeepInfraVia OpenRouterdeepinfra/fp4$0.075$0.25Source10/15/2026
DigitalOceanVia OpenRouterdigitalocean$0.1312$0.4375Source10/15/2026
FireworksVia OpenRouterfireworks$0.15$0.5Source10/15/2026
FireworksVia OpenRouterfireworks/us$0.225$0.75Source10/15/2026
FriendliVia OpenRouterfriendli$0.15$0.5Source10/15/2026
InceptronVia OpenRouterinceptron/fp8$0.108$0.55Source10/15/2026
InferenceNetVia OpenRouterinference-net/fp4$0.083$0.15Source10/15/2026
MakoraVia OpenRoutermakora$0.14$0.47Source10/15/2026
ModalVia OpenRoutermodal/nvfp4$0.15$0.5Source10/15/2026
MorphVia OpenRoutermorph/fp8$0.074$1Source10/15/2026
Near AIVia OpenRouternear-ai/fp8$0.08$0.5Source10/15/2026
NextBitVia OpenRouternextbit/fp4$0.19$0.6Source10/15/2026
NovitaVia OpenRouternovita/fp8$0.084$0.28Source10/15/2026
OpenInferenceVia OpenRouteropen-inference/fp4Lowest listed price: $0.036$0.9Source10/15/2026
ParasailVia OpenRouterparasail/fast$0.1875$0.625Source10/15/2026
ParasailVia OpenRouterparasail/fp4$0.15$0.5Source10/15/2026
RekaVia OpenRouterreka$0.06$1.6Source10/15/2026
RelaceVia OpenRouterrelace$0.04$0.5Source10/15/2026
Sail ResearchVia OpenRoutersail-research/fp4$0.045$0.6Source10/15/2026
Sail ResearchVia OpenRoutersail-research/us$0.045$0.6Source10/15/2026
SiliconFlowVia OpenRoutersiliconflow/fp8$0.15$0.5Source10/15/2026
StreamLakeVia OpenRouterstreamlake/fp8$0.0435Lowest listed price: $0.145Source10/15/2026
TogetherVia OpenRoutertogether$0.15$0.5Source10/15/2026
WaferVia OpenRouterwafer$0.12$0.5Source10/15/2026
Z.AIVia OpenRouterz-ai/fp8$0.15$0.5Source10/15/2026

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-Flash and GLM-5.3-Flash currently matches in version, task, metric, and comparison cohort. We therefore show no estimated or blended values.

Our model tests

Our tests

SVG short test

One SVG prompt and fixed output settings. Captures are shown only with 0 reported reasoning tokens or documented lack of reasoning controls. Identical test conditions do not make the models' internal compute identical.

Shared test round: 4ae5d8eeb9a9

DeepSeek-V4-Flash

API request failed. The model was not evaluated.

GLM-5.3-Flash

Unavailable in this round

Earlier tests

Pelican on a bicycle

A community classic for free-form SVG drawing.

DeepSeek-V4-Flash

The response reached the token limit. No complete recording is available.

Reasoning (requested): high

Current attempt
Run date
Oct 5, 2026
API provider
openrouter
Requested API model
deepseek/deepseek-v4-flash-0731
API model reported in response
deepseek/deepseek-v4-flash-0731
Reasoning setting
high
Pinned endpoint
StreamLake | deepseek/deepseek-v4-flash-20260731
Temperature
Provider default
Token limit including reasoning
8,192 tokens
Test protocol
community-visual-tests-v1
Technical checks
Failed
Response time
97.8 s

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

Earlier attempts (3)
  • Oct 2, 2026API request failedReasoning setting: high
  • Oct 1, 2026API request failedReasoning setting: high
  • Sep 7, 2026API request failedReasoning setting: high

GLM-5.3-Flash

GLM-5.3-Flash: Pelican on a bicycle
A community classic for free-form SVG drawing.

Reasoning (requested): high

Current attempt
Run date
Oct 1, 2026
API provider
openrouter
Requested API model
z-ai/glm-5.3-flash
API model reported in response
z-ai/glm-5.3-flash
Reasoning setting
high
Pinned endpoint
Z.AI | z-ai/glm-5.3-flash-20260826
Temperature
Provider default
Token limit including reasoning
8,192 tokens
Test protocol
community-visual-tests-v1
Technical checks
Passed, not a quality rating
Response time
49.7 s

Visually reviewed. This individual test does not establish overall model quality.

Earlier attempts (1)
  • Sep 7, 2026API request failedReasoning setting: high
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-Flash and GLM-5.3-Flash with other leading models using the same data and benchmark logic.

View the complete LLM comparison