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by DeepSeek

DeepSeek: DeepSeek V3.1.

text open weights 164K ctx
Cheapest input
$0.21/M
on DeepSeek Platform
Cheapest output
$0.79/M
on DeepSeek Platform
Fastest
46 tok/s
on OpenRouter
Hosted equiv.
~$0.28/hr
@ 100 tok/s on DeepSeek Platform

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
DeepSeek Platform api direct $0.21 $0.79 Launch ↗
OpenRouter api aggregator $0.21 $0.79 Launch ↗
Performance

Speed across providers.

Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.

Provider Tokens/sec TTFT Total
OpenRouter 46.1 661 ms 2779 ms
FAQ

Frequently asked.

How do I run DeepSeek: DeepSeek V3.1?
DeepSeek: DeepSeek V3.1 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 V3.1?
DeepSeek: DeepSeek V3.1 is available via DeepSeek Platform, OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run DeepSeek: DeepSeek V3.1?
API pricing starts at $0.21/M input tokens and $0.79/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is DeepSeek: DeepSeek V3.1 open-source or proprietary?
DeepSeek: DeepSeek V3.1 is open-weight under the license. You can download and self-host it.