by DeepSeek

DeepSeek: DeepSeek V4.1 Flash.

multimodal open weights datacenter 763B params 1M ctx
Cheapest input
$0.045/M
on OpenRouter
Cheapest output
$0.5/M
on OpenRouter
Hosted equiv.
~$0.18/hr
@ 100 tok/s on OpenRouter
Description

About DeepSeek: DeepSeek V4.1 Flash.

A multimodal Mixture-of-Experts model with 552B backbone parameters that reads images and text and writes text, with a context of up to one million tokens. Its encoder-decoder layout activates 8B parameters per token while reading the prompt and 16B while generating, which suits agent jobs that feed in a lot of input. Compressed attention and FP4 caching shrink the memory held per token to roughly a quarter of DeepSeek-V4-Flash. Weights are open under the MIT licence.

Context window

How much it can remember.

1M tokens ≈ 786,432 English words
4K 32K 128K 1M
Capabilities

What it can do.

· Vision input
· Audio input
· Video input
· Function calling
· Tool use
· JSON mode
✓ Streaming
· Fine-tuning