DeepSeek V4.1 Flash

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on output from a 552B-parameter backbone, an asymmetric split that keeps per-token compute low relative to the model's total size. Image understanding is native to the architecture, with visual and text embeddings trained jointly from the start of pre-training rather than added afterward as in the earlier experimental V4 Flash Vision Exp.

It is suited for coding, terminal, and computer-use agents, along with long-horizon tasks that must run to completion across many steps and long-context analysis. Compressed KV caching cuts cache memory to roughly a quarter of the previous Flash generation, significantly reducing costs on agentic workloads. DeepSeek positions it as the cost-efficient tier of the V4.1 family and reports that it exceeds V4 Pro on performance, speed, and task completion time.

deepseek/deepseek-v4.1-flash

Organization: DeepSeek
Family: deepseek-flash
Providers: 56
Context: 1,000,000
Output limit: 384,000
Knowledge: 2025-05
Release: 2026-09-10
Updated: 2026-09-10
Weights: Open
Input: text, image
Output: text
Capabilities: Tools, Reasoning, Structured, Temperature

Providers

Compare every cataloged offer for this model, including its provider, route, token limits, price, and capabilities.

108 offers · USD per million tokens

Provider	Model ID	Context	Output	Input / output · 1M	Reasoning	Tools	Structured	Details
302.AI	deepseek-flash	1,000,000	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
above.dev	deepseek-v4-flash	1,000,000	384,000	$0.165 / $0.66	Yes	Yes	Yes	View
above.dev	deepseek-v4.1-flash	1,000,000	384,000	$0.165 / $0.66	Yes	Yes	Yes	View
ai&	deepseek-ai/deepseek-v4.1-flash	1,048,576	384,000	$0.30 / $0.60	Yes	Yes	Yes	View
AIHubMix	deepseek-v4.1-flash	1,000,000	384,000	$0.155 / $0.62	Yes	Yes	Yes	View
Alibaba (China)	deepseek-v4.1-flash	1,000,000	384,000	$0.29754 / $1.19015	Yes	Yes	Yes	View
Alibaba Token Plan	deepseek-v4.1-flash	1,000,000	384,000	$0.00 / $0.00	Yes	Yes	No	View
Alibaba Token Plan (China)	deepseek-v4.1-flash	1,000,000	384,000	$0.00 / $0.00	Yes	Yes	Yes	View
AMD	DeepSeek-V4.1-Flash	1,048,576	384,000	$0.14 / $0.28	Yes	Yes	Yes	View
Baseten	deepseek-ai/DeepSeek-V4.1-Flash-Fast	1,048,576	32,768	$0.60 / $2.40	Yes	Yes	Yes	View
Baseten	deepseek-ai/DeepSeek-V4.1-Flash	1,048,576	32,768	$0.30 / $1.20	Yes	Yes	Yes	View
Charm Hyper	deepseek-v4.1-flash	1,048,576	262,144	$0.33 / $1.31	Yes	Yes	Yes	View
ClinePass	cline-pass/deepseek-v4.1-flash	1,000,000	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
CoralBricks	deepseek-v4.1-flash-fast-fp4	1,048,576	131,072	$0.30 / $1.20	Yes	Yes	Yes	View
CoreWeave	deepseek-ai/DeepSeek-V4.1-Flash	1,048,576	1,048,576	$0.20 / $0.65	Yes	Yes	Yes	View
Cortecs	deepseek-v4.1-flash	1,048,576	1,048,576	$0.201 / $0.60	Yes	Yes	Yes	View
CrossModel	deepseek/deepseek-v4.1-flash	1,000,000	384,000	$0.30 / $1.20	Yes	Yes	Yes	View
Deep Infra	deepseek-ai/DeepSeek-V4.1-Flash	1,048,576	384,000	$0.20 / $0.60	Yes	Yes	Yes	View
DeepSeek	deepseek-v4-flash	1,000,000	393,216	$0.15 / $0.60	Yes	Yes	Yes	View
DeepSeek	deepseek-flash	1,000,000	393,216	$0.15 / $0.60	Yes	Yes	Yes	View
DeepSeek	deepseek-v4-flash-vision-exp	1,000,000	393,216	$0.15 / $0.60	Yes	Yes	Yes	View
DevPass (LLM Gateway)	deepseek-v4.1-flash	1,050,000	384,000	$0.15 / $0.55	Yes	Yes	Yes	View
DigitalOcean	deepseek-v4.1-flash	1,048,576	1,048,576	$0.30 / $1.20	Yes	Yes	Yes	View
Eden AI	flexai/DeepSeek-V4.1-Flash	1,048,576	384,000	$0.14 / $0.42	Yes	Yes	Yes	View
Eden AI	tensorx/deepseek/deepseek-v4.1-flash	1,048,576	384,000	$0.50 / $1.50	Yes	Yes	No	View
Eden AI	deepinfra/deepseek-ai/DeepSeek-V4.1-Flash	1,048,576	384,000	$0.20 / $0.60	Yes	Yes	Yes	View
Eden AI	qwen/deepseek-v4.1-flash	1,000,000	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
Eden AI	nebius/deepseek-ai/DeepSeek-V4.1-Flash	1,048,000	384,000	$0.30 / $1.20	Yes	Yes	No	View
Eden AI	together_ai/deepseek-ai/DeepSeek-V4.1-Flash	1,048,576	384,000	$0.30 / $1.20	Yes	Yes	Yes	View
EmpirioLabs AI	deepseek-v4-1-flash	1,000,000	393,216	$0.30 / $1.20	Yes	Yes	Yes	View
engy	deepseek-v4.1-flash	327,680	65,536	$0.04 / $0.08	Yes	Yes	Yes	View
Fireworks AI	accounts/fireworks/routers/deepseek-flash-latest	1,000,000	384,000	$0.30 / $1.20	Yes	Yes	Yes	View
Fireworks AI	accounts/fireworks/models/deepseek-v4p1-flash	1,000,000	384,000	$0.30 / $1.20	Yes	Yes	Yes	View
GreenPT	deepseek-v4.1-flash	1,000,000	384,000	$0.255552 / $1.27776	Yes	Yes	Yes	View
Hugging Face	deepseek-ai/DeepSeek-V4.1-Flash	1,048,576	384,000	$0.30 / $1.20	Yes	Yes	Yes	View
Inco	deepseek-v4.1-flash:fast	1,000,000	384,000	$0.60 / $2.40	Yes	Yes	Yes	View
Kenari	deepseek-v4-1-flash	1,000,000	384,000	$0.00 / $0.00	Yes	Yes	Yes	View
Kilo Gateway	deepseek/deepseek-v4.1-flash	1,048,576	943,718	$0.30 / $1.20	Yes	Yes	Yes	View
LLM Gateway	novita/deepseek-v4.1-flash	1,048,576	393,216	$0.30 / $1.20	Yes	Yes	No	View
LLM Gateway	scx-ai-gp/deepseek-v4.1-flash	1,000,000	384,000	$0.15 / $0.60	No	No	No	View
LLM Gateway	baidu/deepseek-v4.1-flash	1,048,576	393,216	$0.30 / $1.20	Yes	Yes	Yes	View
LLM Gateway	together-ai/deepseek-v4.1-flash	1,048,576	393,216	$0.30 / $1.20	Yes	Yes	Yes	View
LLM Gateway	deepseek/deepseek-v4.1-flash	1,050,000	393,216	$0.15 / $0.60	Yes	Yes	No	View
LLM Gateway	alibaba/deepseek-v4.1-flash	1,000,000	393,216	$0.30 / $1.20	Yes	Yes	No	View
LLM Gateway	runware/deepseek-v4.1-flash	1,048,576	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
LLM Gateway	deepinfra/deepseek-v4.1-flash	1,048,576	393,216	$0.20 / $0.60	Yes	Yes	Yes	View
LLM Gateway	consensusprotocol/deepseek-v4.1-flash	1,048,576	384,000	$0.15 / $0.55	Yes	Yes	No	View
LLM Gateway	fireworks/deepseek-v4.1-flash	1,048,576	393,216	$0.22 / $0.66	Yes	Yes	Yes	View
Melious	deepseek-v4.1-flash	1,000,000	384,000	$0.23184 / $1.1592	Yes	Yes	Yes	View
Merge Gateway	deepseek/deepseek-v4.1-flash	1,000,000	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
NaN	deepseek-v4-flash	1,000,000	384,000	$0.00 / $0.00	Yes	Yes	Yes	View
NanoGPT	deepseek/deepseek-v4.1-flash	1,000,000	384,000	$0.13 / $0.52	Yes	Yes	Yes	View
NanoGPT	TEE/deepseek-v4.1-flash	1,048,576	384,000	$0.65 / $1.45	Yes	Yes	Yes	View
NanoGPT	deepseek/deepseek-v4.1-flash:thinking	1,000,000	384,000	$0.13 / $0.52	Yes	Yes	Yes	View
Nebius Token Factory	deepseek-ai/DeepSeek-V4.1-Flash	1,048,000	1,048,000	$0.30 / $1.20	Yes	Yes	Yes	View
Neuralwatt	deepseek-v4.1-flash-flex	1,048,560	393,216	$0.0975 / $0.39	Yes	Yes	Yes	View
Neuralwatt	deepseek-v4.1-flash	1,048,560	393,216	$0.15 / $0.60	Yes	Yes	Yes	View
Nvidia	deepseek-ai/deepseek-v4.1-flash	1,000,000	384,000	$0.00 / $0.00	Yes	Yes	Yes	View
Ofox	deepseek/deepseek-v4.1-flash	1,000,000	384,000	$0.21 / $0.84	Yes	Yes	Yes	View
Ollama Cloud	deepseek-v4.1-flash	1,048,576	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
OpenCode Go	deepseek-v4.1-flash	1,000,000	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
OpenCode Zen	deepseek-v4.1-flash	1,000,000	384,000	$0.30 / $1.20	Yes	Yes	Yes	View
Alibabavia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,000,000	393,216	$0.30 / $1.20	Yes	Yes	No	View
AtlasCloudvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	393,216	$0.141 / $0.564	Yes	Yes	Yes	View
Baiduvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	393,216	$0.30 / $1.20	Yes	Yes	Yes	View
BaseTenvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	262,144	$0.30 / $1.20	Yes	Yes	Yes	View
CoreWeavevia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	943,718	$0.20 / $0.65	Yes	Yes	Yes	View
Decartvia OpenRouter	deepseek/deepseek-v4.1-flash fp4	1,048,576	262,144	$0.09 / $0.18	Yes	Yes	Yes	View
DeepInfravia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	131,072	$0.14 / $0.42	Yes	Yes	Yes	View
DeepSeekvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	393,216	$0.15 / $0.60	Yes	Yes	No	View
DekaLLMvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.12 / $2.40	Yes	Yes	Yes	View
DigitalOceanvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.18 / $0.72	Yes	Yes	Yes	View
Fireworksvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.30 / $1.20	Yes	Yes	Yes	View
Fireworksvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.45 / $1.80	Yes	Yes	Yes	View
GMICloudvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,575	943,717	$0.18 / $0.72	Yes	Yes	No	View
InferenceNetvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,040,000	384,000	$0.02 / $0.35	Yes	Yes	Yes	View
Ionstreamvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.10 / $1.15	Yes	Yes	Yes	View
Makoravia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	393,216	$0.20 / $0.99	Yes	Yes	Yes	View
Modalvia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.30 / $1.20	Yes	Yes	Yes	View
Morphvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	943,718	$0.06 / $0.51	Yes	Yes	Yes	View
NextBitvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	943,718	$0.21 / $0.84	Yes	Yes	Yes	View
Novitavia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	393,216	$0.24 / $0.96	Yes	Yes	No	View
Parasailvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	943,718	$0.30 / $1.20	Yes	Yes	Yes	View
Phalavia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.21 / $0.84	Yes	Yes	No	View
Relacevia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.003 / $2.40	Yes	Yes	No	View
Sail Researchvia OpenRouter	deepseek/deepseek-v4.1-flash fp4	1,048,576	384,000	$0.08 / $0.40	Yes	Yes	Yes	View
SiliconFlowvia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,048,576	393,216	$0.30 / $1.20	Yes	Yes	No	View
StreamLakevia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,024,000	384,000	$0.141 / $0.564	Yes	Yes	No	View
Togethervia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.30 / $1.20	Yes	Yes	Yes	View
Venicevia OpenRouter	deepseek/deepseek-v4.1-flash fp8	1,000,000	131,072	$0.30 / $1.20	Yes	Yes	Yes	View
Wafervia OpenRouter	deepseek/deepseek-v4.1-flash unknown	1,048,576	943,718	$0.05 / $0.60	Yes	Yes	Yes	View
Requesty	deepseek-v4.1-flash	1,048,576	393,216	$0.50 / $1.50	Yes	Yes	Yes	View
Requesty	deepseek-v4.1-flash@eu	1,048,576	393,216	$0.50 / $1.50	Yes	Yes	Yes	View
SCNet Token Plan	DeepSeek-V4.1-Flash	1,000,000	384,000	$0.00 / $0.00	Yes	Yes	Yes	View
Synthetic	hf:deepseek-ai/DeepSeek-V4.1-Flash	524,288	65,536	$0.60 / $1.20	Yes	Yes	Yes	View
Tempr Gateway	deepseek/deepseek-flash	1,000,000	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
TensorX	deepseek/deepseek-v4.1-flash	1,048,576	384,000	$0.50 / $1.50	Yes	Yes	Yes	View
Tinfoil	deepseek-v4-1-flash	1,048,576	384,000	$0.65 / $1.45	Yes	Yes	Yes	View
Together AI	deepseek-ai/DeepSeek-V4.1-Flash	1,048,576	384,000	$0.30 / $1.20	Yes	Yes	Yes	View
Umans AI	umans-deepseek-v4.1-flash	1,048,576	393,215	$0.15 / $0.60	Yes	Yes	Yes	View
Umans AI Coding Plan	umans-deepseek-v4.1-flash	1,048,576	393,215	$0.00 / $0.00	Yes	Yes	Yes	View
Vancine	deepseek-v4.1-flash	1,000,000	384,000	$0.24 / $0.96	Yes	Yes	Yes	View
Venice AI	deepseek-v4-1-flash	1,000,000	131,072	$0.30 / $1.20	Yes	Yes	Yes	View
Vercel AI Gateway	deepseek/deepseek-v4.1-flash-fast	1,048,576	1,000,000	$0.30 / $1.20	Yes	Yes	Yes	View
Vercel AI Gateway	deepseek/deepseek-v4.1-flash	1,048,576	32,768	$0.30 / $1.20	Yes	Yes	Yes	View
Vivgrid	deepseek-v4.1-flash	1,000,000	384,000	$0.31 / $1.23	Yes	Yes	Yes	View
Vultr	deepseek-v4.1-flash	1,048,576	384,000	$0.15 / $0.60	Yes	Yes	Yes	View
ZenMux	deepseek/deepseek-v4.1-flash	1,000,000	384,000	$0.15 / $0.60	Yes	Yes	Yes	View

Prices and limits apply to each offer. A dash means the value is not provided. OpenRouter offers show the hosting provider and routing channel separately.

Pricing

Compare token rates and cache charges across available routes and hosting configurations.

USD per million tokens

Input from$0.00Per 1M input tokens

Output from$0.00Per 1M output tokens

Available offers108Across 56 providers

Lowest listed input and output prices across the offers above; they may belong to different providers. These are base rates, before conditional pricing, discounts or additional fees.

Endpoint price comparisonLatest observed snapshot · 10 lowest-priced configurations

InputOutput

Relacerelace

$0.003$2.40

InferenceNetinference-net

$0.02$0.35

Waferwafer

$0.05$0.60

Morphmorph/fp8

$0.06$0.51

Sail Researchsail-research/fp4

$0.08$0.40

Decartdecart/fp4

$0.09$0.18

Ionstreamionstream

$0.10$1.15

DekaLLMdekallm

$0.12$2.40

DeepInfradeepinfra/fp8

$0.14$0.42

AtlasCloudatlas-cloud/fp8

$0.141$0.564

deepseek/deepseek-v4.1-flashObserved Oct 4, 2026, 11:31 AM UTC

Input: $0.003
Output: $2.40
Cache read: $0.003

Hosting prices through OpenRouter All endpoints and cache rates

Endpoint	Input / 1M	Output / 1M	Cache read / 1M	Cache write / 1M
Alibabaalibaba	$0.30	$1.20	$0.03	—
AtlasCloudatlas-cloud/fp8	$0.141	$0.564	$0.0141	—
Baidubaidu/fp8	$0.30	$1.20	$0.006	—
BaseTenbaseten/fp8	$0.30	$1.20	$0.007	—
CoreWeavecoreweave/fp8	$0.20	$0.65	$0.03	—
Decartdecart/fp4	$0.09	$0.18	$0.018	—
DeepInfradeepinfra/fp8	$0.14	$0.42	$0.0042	—
DeepSeekdeepseek	$0.15	$0.60	$0.003	—
DekaLLMdekallm	$0.12	$2.40	$0.005	—
DigitalOceandigitalocean	$0.18	$0.72	$0.0036	—
Fireworksfireworks	$0.30	$1.20	$0.006	—
Fireworksfireworks/us	$0.45	$1.80	$0.009	—
GMICloudgmicloud/fp8	$0.18	$0.72	$0.0036	—
InferenceNetinference-net	$0.02	$0.35	$0.013	—
Ionstreamionstream	$0.10	$1.15	$0.0055	—
Makoramakora/fp8	$0.20	$0.99	$0.006	—
Modalmodal	$0.30	$1.20	$0.03	—
Morphmorph/fp8	$0.06	$0.51	$0.008	—
NextBitnextbit/fp8	$0.21	$0.84	$0.004	—
Novitanovita/fp8	$0.24	$0.96	$0.0048	—
Parasailparasail/fp8	$0.30	$1.20	$0.006	—
Phalaphala	$0.21	$0.84	$0.0042	—
Relacerelace	$0.003	$2.40	$0.003	—
Sail Researchsail-research/fp4	$0.08	$0.40	$0.01	—
SiliconFlowsiliconflow/fp8	$0.30	$1.20	$0.006	—
StreamLakestreamlake/fp8	$0.141	$0.564	$0.00282	—
Togethertogether	$0.30	$1.20	$0.006	—
Venicevenice/fp8	$0.30	$1.20	$0.0075	—
Waferwafer	$0.05	$0.60	$0.048	—

Each row is a hosting configuration. Open an offer in Providers for its full pricing conditions and additional fees. Endpoint observations may differ from the routing catalog's base price.

Performance

Review reported latency and output-throughput percentiles from the latest observed rolling window.

Latest 30-minute observation

Time to first token · milliseconds

Latency distributionRolling 30-minute snapshot · 6 endpoints

P50P75P90P99

Alibabaalibaba

1,344–17,336.6 ms

AtlasCloudatlas-cloud/fp8

1,136–5,758.18 ms

Baidubaidu/fp8

1,002–11,867.08 ms

CoreWeavecoreweave/fp8

637–4,554.61 ms

Decartdecart/fp4

777–8,684.3 ms

DeepInfradeepinfra/fp8

961–6,126.6 ms

All latency percentiles 27 endpoints

Endpoint	P50	P75	P90	P99
Alibabaalibaba	1,344 ms	2,477 ms	4,705.8 ms	17,336.6 ms
AtlasCloudatlas-cloud/fp8	1,136 ms	1,328 ms	1,763.9 ms	5,758.18 ms
Baidubaidu/fp8	1,002 ms	1,401 ms	2,336 ms	11,867.08 ms
CoreWeavecoreweave/fp8	637 ms	886 ms	1,281.9 ms	4,554.61 ms
Decartdecart/fp4	777 ms	1,127 ms	1,997 ms	8,684.3 ms
DeepInfradeepinfra/fp8	961 ms	1,453 ms	2,324 ms	6,126.6 ms
DeepSeekdeepseek	976 ms	1,356 ms	1,753.9 ms	4,278.25 ms
DekaLLMdekallm	763 ms	1,015 ms	1,373 ms	2,890.36 ms
DigitalOceandigitalocean	1,099.5 ms	1,461 ms	1,953.3 ms	4,957.53 ms
Fireworksfireworks	2,242.5 ms	6,401.75 ms	16,074.8 ms	48,965.54 ms
Fireworksfireworks/us	573.5 ms	1,216.25 ms	3,732.9 ms	31,904.53 ms
GMICloudgmicloud/fp8	2,000 ms	3,240 ms	5,590.8 ms	35,453.64 ms
InferenceNetinference-net	891 ms	1,710 ms	3,960 ms	25,007.58 ms
Ionstreamionstream	813 ms	1,516.5 ms	2,334 ms	6,334.2 ms
Makoramakora/fp8	1,467 ms	2,426.25 ms	4,884.8 ms	17,093.5 ms
Modalmodal	642.5 ms	1,029.25 ms	1,877.9 ms	8,419.89 ms
NextBitnextbit/fp8	2,292 ms	3,185.5 ms	5,794.6 ms	12,066.68 ms
Novitanovita/fp8	2,695.5 ms	4,579 ms	7,173.8 ms	25,533.33 ms
Parasailparasail/fp8	1,009.5 ms	1,687 ms	3,629.9 ms	15,483.18 ms
Phalaphala	719 ms	1,272 ms	2,182.8 ms	5,930.08 ms
Relacerelace	1,164 ms	1,955.75 ms	3,416.9 ms	10,877.09 ms
Sail Researchsail-research/fp4	3,159.5 ms	4,422.25 ms	5,208 ms	7,440.59 ms
SiliconFlowsiliconflow/fp8	3,265 ms	5,373.25 ms	8,927.4 ms	30,499.33 ms
StreamLakestreamlake/fp8	1,877 ms	3,069 ms	4,875 ms	25,927.99 ms
Togethertogether	292 ms	471 ms	1,002.6 ms	8,342.44 ms
Venicevenice/fp8	582 ms	1,240 ms	2,661.9 ms	15,410.82 ms
Waferwafer	497 ms	852 ms	1,533.9 ms	7,908.48 ms

Output throughput · tokens per second

Throughput distributionRolling 30-minute snapshot · 6 endpoints

P50P75P90P99

Alibabaalibaba

86–203.46 t/s

AtlasCloudatlas-cloud/fp8

100–190 t/s

Baidubaidu/fp8

111–297.03 t/s

CoreWeavecoreweave/fp8

132–313.09 t/s

Decartdecart/fp4

46–127 t/s

DeepInfradeepinfra/fp8

56–129 t/s

All throughput percentiles 27 endpoints

Endpoint	P50	P75	P90	P99
Alibabaalibaba	86 t/s	112 t/s	140.6 t/s	203.46 t/s
AtlasCloudatlas-cloud/fp8	100 t/s	125 t/s	143 t/s	190 t/s
Baidubaidu/fp8	111 t/s	167.5 t/s	215.1 t/s	297.03 t/s
CoreWeavecoreweave/fp8	132 t/s	177 t/s	217 t/s	313.09 t/s
Decartdecart/fp4	46 t/s	62 t/s	82 t/s	127 t/s
DeepInfradeepinfra/fp8	56 t/s	73 t/s	93 t/s	129 t/s
DeepSeekdeepseek	115 t/s	170 t/s	212 t/s	279 t/s
DekaLLMdekallm	38 t/s	52 t/s	74 t/s	131.2 t/s
DigitalOceandigitalocean	47 t/s	51 t/s	55 t/s	59 t/s
Fireworksfireworks	44 t/s	52 t/s	60 t/s	79 t/s
Fireworksfireworks/us	186 t/s	257 t/s	319 t/s	435.09 t/s
GMICloudgmicloud/fp8	94 t/s	126 t/s	143 t/s	166.72 t/s
InferenceNetinference-net	65 t/s	88 t/s	118 t/s	181 t/s
Ionstreamionstream	129 t/s	184 t/s	227.7 t/s	299 t/s
Makoramakora/fp8	111 t/s	169 t/s	237 t/s	348.18 t/s
Modalmodal	167 t/s	207 t/s	249.5 t/s	332.85 t/s
NextBitnextbit/fp8	83 t/s	116 t/s	135 t/s	169.3 t/s
Novitanovita/fp8	75 t/s	114 t/s	144 t/s	214 t/s
Parasailparasail/fp8	140 t/s	207 t/s	267 t/s	374 t/s
Phalaphala	70 t/s	100 t/s	127 t/s	165 t/s
Relacerelace	80 t/s	104 t/s	128 t/s	181.09 t/s
Sail Researchsail-research/fp4	49 t/s	59 t/s	73 t/s	102.87 t/s
SiliconFlowsiliconflow/fp8	97 t/s	122 t/s	152 t/s	219 t/s
StreamLakestreamlake/fp8	69 t/s	94 t/s	123 t/s	206 t/s
Togethertogether	230 t/s	282 t/s	337 t/s	454 t/s
Venicevenice/fp8	206 t/s	312 t/s	401 t/s	530.09 t/s
Waferwafer	106 t/s	133 t/s	159 t/s	210 t/s

Percentiles describe the observed request distribution. These are snapshots of a rolling window, not a historical time series.

Uptime

Compare successful request rates across the latest 5-minute, 30-minute, and 24-hour observations.

Successful requests by window

Availability by endpointCurrent overlapping windows · 29 endpoints

Endpoint5 minutes30 minutes24 hours

AlibabaalibabaObserved Oct 4, 2026, 11:31 AM UTC

100%

99.11%

97.58%

AtlasCloudatlas-cloud/fp8Observed Oct 4, 2026, 11:31 AM UTC

100%

99.38%

Baidubaidu/fp8Observed Oct 4, 2026, 11:31 AM UTC

100%

99.76%

99.87%

BaseTenbaseten/fp8Observed Oct 4, 2026, 11:31 AM UTC

100%

—

CoreWeavecoreweave/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.88%

99.79%

99.68%

Decartdecart/fp4Observed Oct 4, 2026, 11:31 AM UTC

100%

99.97%

99.98%

DeepInfradeepinfra/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.99%

99.98%

99.97%

DeepSeekdeepseekObserved Oct 4, 2026, 11:31 AM UTC

100%

99.99%

DekaLLMdekallmObserved Oct 4, 2026, 11:31 AM UTC

99.67%

99.92%

99.81%

DigitalOceandigitaloceanObserved Oct 4, 2026, 11:31 AM UTC

100%

99.88%

99.89%

FireworksfireworksObserved Oct 4, 2026, 11:31 AM UTC

99.04%

95.21%

98.09%

Fireworksfireworks/usObserved Oct 4, 2026, 11:31 AM UTC

99.83%

99.8%

98.5%

GMICloudgmicloud/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.25%

99.9%

99.69%

InferenceNetinference-netObserved Oct 4, 2026, 11:31 AM UTC

99.69%

99.68%

99.53%

IonstreamionstreamObserved Oct 4, 2026, 11:31 AM UTC

99.66%

99.9%

99.87%

Makoramakora/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.9%

99.93%

ModalmodalObserved Oct 4, 2026, 11:31 AM UTC

—

100%

99.81%

Morphmorph/fp8Observed Oct 4, 2026, 11:31 AM UTC

—

99.87%

NextBitnextbit/fp8Observed Oct 4, 2026, 11:31 AM UTC

100%

99.72%

99.83%

Novitanovita/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.96%

99.47%

Parasailparasail/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.8%

99.7%

99.83%

PhalaphalaObserved Oct 4, 2026, 11:31 AM UTC

100%

99.98%

99.9%

RelacerelaceObserved Oct 4, 2026, 11:31 AM UTC

100%

99.9%

Sail Researchsail-research/fp4Observed Oct 4, 2026, 11:31 AM UTC

100%

99.98%

99.7%

SiliconFlowsiliconflow/fp8Observed Oct 4, 2026, 11:31 AM UTC

100%

99.95%

99.63%

StreamLakestreamlake/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.94%

99.95%

99.71%

TogethertogetherObserved Oct 4, 2026, 11:31 AM UTC

100%

99.94%

Venicevenice/fp8Observed Oct 4, 2026, 11:31 AM UTC

99.64%

99.25%

99.77%

WaferwaferObserved Oct 4, 2026, 11:31 AM UTC

100%

99.99%

100%

Reported by OpenRouter at the time of collection; rate-limited requests are excluded. A dash means no measurement was reported. This is not a live availability check.

Benchmarks

Review attributed evaluation results on each source's original scale.

External evaluations

deepseek/deepseek-v4.1-flashObserved Oct 4, 2026, 11:31 AM UTC

Benchmark profileArtificial Analysis · shared source scale from 0 to 40

Intelligence

39.5

Sources: Artificial Analysis and Design Arena, via OpenRouter. Scores retain their original scales and are not OpenAI Suite ratings.

Detailed evaluations

Evaluation scoresAccuracy or item F1 · higher is better

gpqa diamondDeepSeek: DeepSeek V4.1 Flash

88.945%

tau bench verified airlineDeepSeek: DeepSeek V4.1 Flash

76.222%

Evaluation	Configuration	Source	Results	Details
gpqa diamond	DeepSeek: DeepSeek V4.1 Flashdeepseek/deepseek-v4.1-flash-20260910	OpenRouter	88.945%	Details
Composite indices	DeepSeek V4.1 Flash (Reasoning, Max Effort)deepseek/deepseek-v4.1-flash-20260910	Artificial Analysis	Intelligence 39.5 · Coding — · Agentic —	Details
tau bench verified airline	DeepSeek: DeepSeek V4.1 Flashdeepseek/deepseek-v4.1-flash-20260910	OpenRouter	76.222%	Details

Sources: Artificial Analysis, Design Arena and OpenRouter. Evaluation configurations and scales differ; results are not interchangeable. Updated Oct 4, 2026.

Apps & session costs

Compare observed median session costs for applications using this model, grouped by conversation length.

30-day sample · through Sep 27, 2026

Application	Model route	Turns	Median cost / session	Details
Claude Code	deepseek/deepseek-v4.1-flash-20260910	1 turn	$0.004075	Details
Hermes Agent	deepseek/deepseek-v4.1-flash-20260910	1 turn	$0.001218	Details
Kilo Code	deepseek/deepseek-v4.1-flash-20260910	50+ turns	$0.353328	Details
Hermes Agent	deepseek/deepseek-v4.1-flash-20260910	2–9 turns	$0.00712	Details
Hermes Agent	deepseek/deepseek-v4.1-flash-20260910	50+ turns	$0.377597	Details
Claude Code	deepseek/deepseek-v4.1-flash-20260910	2–9 turns	$0.010706	Details
Codex	deepseek/deepseek-v4.1-flash-20260910	10–49 turns	$0.042832	Details
Codex	deepseek/deepseek-v4.1-flash-20260910	50+ turns	$0.106612	Details
Kilo Code	deepseek/deepseek-v4.1-flash-20260910	2–9 turns	$0.014158	Details
Kilo Code	deepseek/deepseek-v4.1-flash-20260910	1 turn	$0.001529	Details
Kilo Code	deepseek/deepseek-v4.1-flash-20260910	10–49 turns	$0.056717	Details
Codex	deepseek/deepseek-v4.1-flash-20260910	2–9 turns	$0.007541	Details
Codex	deepseek/deepseek-v4.1-flash-20260910	1 turn	$0.001041	Details
Claude Code	deepseek/deepseek-v4.1-flash-20260910	50+ turns	$0.64111	Details
Hermes Agent	deepseek/deepseek-v4.1-flash-20260910	10–49 turns	$0.060949	Details
Claude Code	deepseek/deepseek-v4.1-flash-20260910	10–49 turns	$0.072882	Details

Source: OpenRouter, as of Oct 2, 2026. Published under CC BY 4.0. These are observed costs per session, not token prices or a forecast for your workload. Apps are compared separately.

Activity

Daily prompt and completion tokens reported for this model's routes in OpenRouter's top 50. Missing days have no published value.

Last 90 complete UTC days

Daily token usage62,471,865,840,231 reported tokens · 24 days with observations

3.9T0

2026-09-10
678,686,144,342 tokens

2026-09-11
1,536,367,792,104 tokens

2026-09-12
1,428,066,412,438 tokens

2026-09-13
1,294,618,265,169 tokens

2026-09-14
1,283,244,821,904 tokens

2026-09-15
1,799,484,922,582 tokens

2026-09-16
2,249,099,456,858 tokens

2026-09-17
2,250,990,777,624 tokens

2026-09-18
2,621,995,119,219 tokens

2026-09-19
3,072,929,126,131 tokens

2026-09-20
2,490,889,275,600 tokens

2026-09-21
2,431,719,459,493 tokens

2026-09-22
2,717,219,458,442 tokens

2026-09-23
2,809,507,461,498 tokens

2026-09-24
2,761,232,489,714 tokens

2026-09-25
2,964,159,850,392 tokens

2026-09-26
2,451,574,001,771 tokens

2026-09-27
3,440,258,106,142 tokens

2026-09-28
3,681,553,673,810 tokens

2026-09-29
3,918,021,317,885 tokens

2026-09-30
3,491,740,784,985 tokens

2026-10-01
3,549,428,106,767 tokens

2026-10-02
3,641,016,456,262 tokens

2026-10-03
3,908,062,559,099 tokens

Jul 6, 2026Oct 3, 2026

Daily observations · 24 days

Date (UTC)	Reported tokens	Reported routes
Oct 3, 2026	3,908,062,559,099	1
Oct 2, 2026	3,641,016,456,262	1
Oct 1, 2026	3,549,428,106,767	1
Sep 30, 2026	3,491,740,784,985	1
Sep 29, 2026	3,918,021,317,885	1
Sep 28, 2026	3,681,553,673,810	1
Sep 27, 2026	3,440,258,106,142	1
Sep 26, 2026	2,451,574,001,771	1
Sep 25, 2026	2,964,159,850,392	1
Sep 24, 2026	2,761,232,489,714	1
Sep 23, 2026	2,809,507,461,498	1
Sep 22, 2026	2,717,219,458,442	1
Sep 21, 2026	2,431,719,459,493	1
Sep 20, 2026	2,490,889,275,600	1
Sep 19, 2026	3,072,929,126,131	1
Sep 18, 2026	2,621,995,119,219	1
Sep 17, 2026	2,250,990,777,624	1
Sep 16, 2026	2,249,099,456,858	1
Sep 15, 2026	1,799,484,922,582	1
Sep 14, 2026	1,283,244,821,904	1
Sep 13, 2026	1,294,618,265,169	1
Sep 12, 2026	1,428,066,412,438	1
Sep 11, 2026	1,536,367,792,104	1
Sep 10, 2026	678,686,144,342	1

Source: OpenRouter (openrouter.ai/rankings), as of Oct 4, 2026. CC BY 4.0. Totals include only individually published routes. Tokenizers differ by provider; the aggregated “other” category is never assigned to a model.

Technical details & API

Explore specifications, supported parameters, reasoning controls, and API identifiers for each OpenRouter route.

Current route specifications

deepseek/deepseek-v4.1-flashObserved Oct 4, 2026, 11:31 AM UTC

Context: 1,048,576
Maximum output: 943,718
Tokenizer: DeepSeek
Input: text, image
Output: text
Moderation: No
Added to OpenRouter: 2026-09-10

Base URLhttps://openrouter.ai/api/v1

Model IDdeepseek/deepseek-v4.1-flash

Version IDdeepseek/deepseek-v4.1-flash-20260910

Weights IDdeepseek-ai/DeepSeek-V4.1-Flash

Reasoning

Required: No
Enabled by default: Yes
Default effort: high
Supported efforts: max, high, low

Supported parameters

frequency_penalty
include_reasoning
logit_bias
logprobs
max_tokens
min_p
presence_penalty
reasoning
reasoning_effort
repetition_penalty
response_format
seed
stop
structured_outputs
temperature
tool_choice
tools
top_k
top_logprobs
top_p

Frequently asked questions

Answers based on the model metadata and serving offers currently in the catalog.

How much does DeepSeek V4.1 Flash cost?

Listed rates start at $0.00 per million input tokens and $0.00 per million output tokens. Prices vary by provider and configuration; see Pricing for details.

Which providers offer DeepSeek V4.1 Flash?

There are 108 cataloged offers across 56 providers. Compare model IDs, prices and limits in Providers.

What is the context window?

The cataloged model context is 1,000,000 tokens. Each serving endpoint may apply a different limit.

Does it support tools and structured output?

Tool calling: Yes. Structured output: Yes. Support can vary by endpoint.

Resources

MIT

Hugging Face ↗

Catalog history · 3 recorded revisions

Metadata observations since this model was first cataloged. These are not model release versions.

Sep 19, 2026 · 7b88df1d426f
Sep 14, 2026 · b48f8c44b42b
Sep 12, 2026 · a979c5c2e8fd