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by DeepSeek

DeepSeek: DeepSeek V4.1 Flash.

multimodal open weights 1M ctx
Cheapest input
$0.15/M
on OpenRouter
Cheapest output
$0.6/M
on DeepInfra
Hosted equiv.
~$0.22/hr
@ 100 tok/s on DeepInfra

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...

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $0.15 $0.6 Launch ↗
DeepInfra hosted inference $0.2 $0.6 Launch ↗
Together AI hosted inference $0.3 $1.2 Launch ↗
Sources

Official references.

Hugging Face ↗
FAQ

Frequently asked.

How do I run DeepSeek: DeepSeek V4.1 Flash?
DeepSeek: DeepSeek V4.1 Flash is open-weight, so you can self-host on rented GPUs. See the Run It Yourself tab for GPU configurations + cost estimates, or use one of the hosted inference providers listed on this page.
Where can I access DeepSeek: DeepSeek V4.1 Flash?
DeepSeek: DeepSeek V4.1 Flash is available via Together AI, DeepInfra, OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run DeepSeek: DeepSeek V4.1 Flash?
API pricing starts at $0.15/M input tokens and $0.6/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is DeepSeek: DeepSeek V4.1 Flash open-source or proprietary?
DeepSeek: DeepSeek V4.1 Flash is open-weight under the license. You can download and self-host it.